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Mathematics Mapping For Instruction Grade Five Prince William County Public Schools June 2003 (Updated July 2009) MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Prince William County Mathematics Vision Statement The Prince William County Schools’ mathematics program promotes an environment in which students develop a comprehensive and enduring understanding of the concepts of mathematics. Students learn to effectively apply these concepts and use a variety of problem solving strategies. The program nurtures a productive disposition toward mathematics, challenges all learners, and supports further investigations in this field. Updated July 2009 Grade 5 Curriculum Map—page 2 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Sample Assessment Techniques Category Techniques Information Provided Observations Anecdotal Records Conferences Checklists immediate evaluation and feedback of learning, focus on specific learner expectations, social skills and behaviors, teamwork, interactions, knowledge into context, levels of understanding, relationships, attitude, oral language skills, listening skills, analysis, real-life application, process, procedures, equipment handling Journals Journal Personal Response Journal Dialogue Journals Reflective Interactive On-line Journals understanding, written ability, conventions, organizations, pre and post comparisons, feedback to teachers, personal connections, social skills, connection to concepts in literature, understanding of story elements, internalization of literature, personal experience, goal setting, understanding process, affective mode, background knowledge Tests and Quizzes Multiple Choice True/False Short Answer pre and post test of knowledge, content mastery, ability to make inferences, recall, recognition, memorization, content, problem solving process, summative information Performance Tasks Simulations Multimedia Productions Demonstrations Presentations Lab Experiments Drama/Music/Dance Investigations Data Analysis Mathematical Models Computer Software Demonstrations creativity, understanding, end product, public speaking and performing, group work, organization skills, application of skills to new situations, reasoning skills, analysis, real-life application, process, procedures, equipment handling Written Projects Laboratory Reports Research Papers Essays Brochures Word Puzzles Proposals Articles/Stories/Scripts logical organization, hypothesis, comprehension, following directions, writing skills, use of logic, interpersonal relations, expression, vocabulary, style, understanding of different writing structures/genres, research skills, evaluations, summative, initiative Oral Projects Retelling Debates Interviewing Questions/Responses Audio Tapes Teaching a Lesson comprehension, synthesis, paraphrasing, speaking and listening skills, substantiation of positions, development of counter argument, reasoning, assessment of background knowledge, perspective, organization, decision making skills, personal information, attitude, synthesizing, analyzing, memorization, interpretation, composure, confidence. Visual Projects Story Boards Illustrations Advertisements Multimedia Projects Science Fair Displays Collages/Maps/Designs Photographs Models Scrapbooks Work Samples assessment of background knowledge, comprehension, organization, creativity, growth and maturity level, depth of conceptualization, good for non-readers or early readers, application, synthesis, process, application of knowledge and skills, equipment use, decision making Updated July 2009 Paper and Pencil Matching Extended Response Grade 5 Curriculum Map—page 3 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Number and Number Sense Mathematics instruction in grades 4 and 5 should continue to foster the development of number sense, especially with decimals and fractions. Students with good number sense understand the meaning of numbers, develop multiple relationships and representations among numbers, and recognize the relative magnitude of numbers. They should learn the relative effect of operating on whole numbers, fractions, and decimals and learn how to use mathematical symbols and language to represent problem situations. Number and operation sense continues to be the cornerstone of the curriculum. The focus of instruction at grades 4 and 5 allows students to investigate and develop an understanding of number sense by modeling numbers, using different representations (e.g., physical materials, diagrams, mathematical symbols, and word names). Students should develop strategies for reading, writing, and judging the size of whole numbers, fractions, and decimals by comparing them, using a variety of models and 1 benchmarks as referents (e.g., 2 or 0.5). Students should apply their knowledge of number and number sense to investigate and solve problems. Updated July 2009 Grade 5 Curriculum Map—page 4 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Number and Number Sense SOL Reporting Category Number and Number Sense Concept Place Value PWC Grade Level Objective 5.1 Virginia SOL 5.1 5.1A The student will read, write, and identify the place values of decimals through thousandths. 5.1B The student will round decimals to the nearest tenth or hundredth place. 5.1C The student will compare the value of two decimals through thousandths using the symbols >, <, or =. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How are reading, writing, and place values of decimals similar to/different from reading, writing, and place values of whole numbers? How is rounding numbers with decimal places similar to/different from rounding whole numbers? What are the effects of multiplying or dividing a given number (whole number and or decimal number) by a multiple of ten? Understanding the Objective (Teacher Notes) The structure of the base-ten number system is based upon a simple pattern of tens, where each place is ten times the value of the place to its right. This is known as a ten-to-one place value relationship. The term, decimal number, refers to a number based upon a system of tens. Thus, whole numbers are decimal numbers; however, when we typically use the term decimal number or simply decimal, we are referring to a decimal fraction. A decimal point separates the whole number places from the places less than one (fractional places). Place values extend infinitely in two directions from the decimal point. Decimals may be written in a variety of forms: Standard: 26.537 Written: twenty-six and five hundred thirty-seven thousandths Expanded: (2 x 10) + (6 x 1) + (5 x 0.1) + (3 x 0.01) + (7 x 0.001); or 20 + 6 + 0.5 + 0.03 + 0.007; or 2 tens + 6 ones + 5 tenths + 3 hundredths + 7 thousandths It is important for students to also write decimals in their equivalent fractional form. Students should model decimal numbers using different representations for a whole, e.g., base-ten blocks (cube, flat, rod – where any of these could represent one whole), decimal squares, circle, meter stick, and money. Concrete and pictorial representations help students extend their understanding of the ten-structure of whole numbers into an understanding of decimal fractions. Decimal models help students develop their own number-sense-based procedures for reading, writing, comparing, ordering, and rounding decimal numbers. Understanding where to place given decimal numbers between anchor numbers on a number line is a prerequisite to ordering and rounding decimal numbers. Reading, writing, comparing, ordering, and rounding decimal numbers should be related to real-world situations. All students should: Understand the place value structure of decimals and use this structure to read, write, and compare decimals. Understand that decimal numbers can be rounded to estimate when exact numbers are not needed for the situation at hand. Understand that decimals are rounded in a way that is similar to the way that whole numbers are rounded. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify the place values for each digit in decimals through thousandths. Read decimal numbers through thousandths from written word names or place value format. Write decimal numbers through thousandths from written word names or from decimal numbers presented orally. Round decimal numbers to the nearest tenths or hundredths. Identify the symbols for “is greater than,” “is less than,” and “is equal to”. Compare the value of two decimal numbers through thousandths, using the symbols >, <, and =. Students should understand that the way decimals are read is related to the meaning of the numbers. For example, 14.638 is read as “fourteen and six-hundred thirty-eight thousandths.” Students who flexibly understand that 638 thousandths is equivalent to 6 tenths + 3 hundredths + 8 thousandths (or 6 tenths + 38 thousandths) can understand why, when reading decimal numbers, the decimal fraction is named by the smallest place. continued Updated July 2009 Grade 5 Curriculum Map—page 5 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Number and Number Sense Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Number and Number Sense Subject: 5.1 continued Likewise, students with strong place value understanding will apply reasoning when comparing and ordering numbers rather than relying on a rote procedure for lining up numbers (for example, recognizing that 14.638 <14.7 because 7 tenths are greater than 638 thousandths). To round a number means to substitute a “nice” number that is close to the actual number so that computation or comparison may be more easily done. Emphasis should be on understanding the rounding concept, not on memorization of a procedure. Students should develop their own PWC Grade Level Objective 5.1 procedures for rounding instead of memorizing a given procedure without understanding. For Virginia SOL 5.1 example, students who have learned rote procedures for rounding whole numbers will have 5.1A The student will read, write, and identify difficulty understanding why 14.638 rounded to the nearest tenth is 14.6 rather than 14.600. the place values of decimals through Students should pair models with symbolic notation when exploring strategies for rounding. thousandths. Emphasis should be on understanding the rounding concept as practical real-life application. Concept Place Value 5.1B The student will round decimals to the nearest tenth or hundredth place. 5.1C The student will compare the value of two decimals through thousandths using the symbols >, <, or =. Updated July 2009 Computations on a calculator may provide a context for exploring the rounding of decimals. For example, in investigating the conversion of 1/6 to a decimal fraction, students encounter the repeating decimal 0.16666… (Note: Some calculators will round the final digit of a repeating decimal, while others will truncate it.) Mathematically, a repeating decimal is denoted with a superscript line over the repeating digit(s), technically known as a vinculum. Students may also express the decimal equivalent as a rounded number. Thus, to the nearest hundredth, 1/6 is equivalent to 0.17; to the nearest thousandth it would be 0.167. Students may use calculators to build an understanding of the effects of multiplying or dividing numbers by powers of ten. This understanding is useful for computation and estimation with whole numbers and decimals and for conversions within the metric system of measurement. It also builds a foundation for the future understanding of scientific notation. Year: Revised 2009 Essential Understanding All students should: Understand the place value structure of decimals and use this structure to read, write, and compare decimals. Understand that decimal numbers can be rounded to estimate when exact numbers are not needed for the situation at hand. Understand that decimals are rounded in a way that is similar to the way that whole numbers are rounded. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify the place values for each digit in decimals through thousandths. Read decimal numbers through thousandths from written word names or place value format. Write decimal numbers through thousandths from written word names or from decimal numbers presented orally. Round decimal numbers to the nearest tenths or hundredths. Identify the symbols for “is greater than,” “is less than,” and “is equal to”. Compare the value of two decimal numbers through thousandths, using the symbols >, <, and =. Grade 5 Curriculum Map—page 6 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Number and Number Sense SOL Reporting Category Number and Number Sense Concept Place Value PWC Grade Level Objective 5.1 Virginia SOL 5.1 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 6 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Number and Operations in Grades 3-5, NCTM Nimble with Numbers Grade 4-5 & 5-6 by Leah Childs and Laura Choate Number Sense Grades 4-6 by McIntosh and others – Section 3 and 5 Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004): Building on Numbers You Know, Scott Foresman The Super Source books - Base 10 Blocks, ETA/ Cuisenaire Math: A Way of Thinking About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 7 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Number and Number Sense SOL Reporting Category Number and Number Sense Concept Order and Compare Fractions PWC Grade Level Objective 5.2 Virginia SOL 5.2 5.2A The student will recognize and name commonly used fractions (halves, fourths, fifths, eighths, and tenths) in their equivalent decimal form and vice versa. 5.2B The student will order a given set of fractions and decimals from least to greatest. Fractions will include like and unlike denominators limited to 12 or less and mixed numbers. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions When is it appropriate to use fractions? …decimals? How can a fraction represent division? What models and relationships help us name commonly-used fractions and mixed numbers in their equivalent decimal forms and vice versa? How can we use landmarks (benchmarks) and the number line to help us order a set of fractions and decimals? All students should: Understand the relationship between commonly used fractions and their decimal form. Understand that fractions and decimals can be ordered from least to greatest. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Represent fractions for halves, fourths, fifths, eighths, and tenths in their equivalent decimal forms. Represent decimals in their equivalent fraction form of half, fourth, fifth, eighth, and tenth. Determine equivalent relationships between decimals and fractions with Fractions have multiple meanings and interpretations. In Grade 5 students expand their understanding denominators up to 12. of fractions. They work more extensively with fractions greater than one whole. They also extend Order a given set of no more than five their understanding of fractions as divisions of whole numbers. In division, they may express numbers written as fractions and mixed quotients as mixed numbers, rather than indicating remainders. The concept of fractions as numbers, with denominators of 12 or less, representing division is the foundation for the computational procedure for converting fractions to and decimals from least to greatest. their equivalent decimal forms. Students should focus on finding equivalent decimals of familiar fractions such as halves, fourths, fifths, eighths, and tenths. In middle school, students will learn to use fractions as multiplicative operators and as ratios. Understanding the Objective (Teacher Notes) Fractions, decimals, and percents* can all be used to represent numbers less than one and numbers between whole numbers; they can also be alternative representations for whole numbers. The form used depends largely on context and convention. For example, fractions are most often used to describe objects or groups we split up and for certain measurements, particularly those expressed in U.S. Customary units; decimals are used to express baseball statistics and certain measurements such as odometer readings, rainfall amounts, money, and most measurement expressed in metric units; percentages are used to describe test scores, parts of large groups, weather probabilities, sale prices, and expressions of increase and decrease. The fractions and decimals students study in Grade 5 are all rational numbers; that is, they can all be expressed as a ratio of integers. Decimal numbers are another way of writing fractions. Decimals and fractions represent the same relationships; however they are presented in two different formats. Decimal numbers rely on place to represent the value of the denominator. Models help students concretely relate fractions to decimals, e.g., 10 x 10 grids, meter sticks, number lines, decimal squares, circles, and money. Region models (fraction squares and rectangles, 10x10 grids, decimal squares, and fractions circles) illustrate fractional or decimal parts as fair shares of a certain whole; as such, they place fraction and decimals in a specific visual context. Rotational models such as the clock face help students visualize relationships among halves, thirds, fourths, sixths, and twelfths; visual analogies between the clock face and circle graph (pie chart) help students connect common fractions to their percent and decimal equivalents. Linear/measurement models (fraction bars, percent equivalent strips, and number lines) aid students in comparing rational numbers and in adding and subtracting them. continued Updated July 2009 Grade 5 Curriculum Map—page 8 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Number and Number Sense Concept Order and Compare Fractions PWC Grade Level Objective 5.2 Virginia SOL 5.2 5.2A The student will recognize and name commonly used fractions (halves, fourths, fifths, eighths, and tenths) in their equivalent decimal form and vice versa. 5.2B The student will order a given set of fractions and decimals from least to greatest. Fractions will include like and unlike denominators limited to 12 or less and mixed numbers. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Number and Number Sense Subject: Year: Revised 2009 Essential Understanding 5.2 continued The number line representation is a particularly critical one, because it helps students see fractions and decimals as numbers that are part of the number system. This is an important concept because, ½ in a context may be one of two equal parts of a region or group of things, and ½ of a pizza represents a larger visual area than ½ of a typical cookie; however, ½ as a number always has the same relationship to the other numbers in our number system. ½ of 12 is always 6, no matter what the 12 represents. The number line helps students visualize fractions and decimals as relationships. By studying multiple representations for fractions and decimals, students develop mental images of landmark (benchmark) fractions and decimals and enhance their understanding of the complex meanings of rational numbers. Using money as an analog, student can easily establish landmark (benchmark) equivalents for fractions and decimals (e.g., 1/10 as 0.1, ¼ as 0.25, ½ as 0.5 or 0.50, ¾ as 0.75, 1¼ as 1.25, etc.). Exploring approximate decimal/fraction equivalents builds number sense for rational numbers; for example, 0.215 is close to 0.2 or 1/5; 6.56 is close to 6.5 or 6 ½. Although students will learn to change a fraction to its decimal equivalent by dividing the numerator of a fraction by its denominator, they should also use reasoning from benchmark equivalents to find decimal equivalents. For example, since 3/8 is halfway between ½ and ¼, its decimal equivalent is halfway between 0.50 and 0.25, or 0.385 (38½ hundredths). Students will develop number sense for the relative magnitude of rational numbers by using reasoning to order given sets of numbers written as fractions, mixed numbers, and decimals on a classroom number line marked with decimal/fraction equivalents of landmark/benchmark numbers. (Sets of numbers should be limited to no more than five numbers written as fractions or mixed numbers with like or unlike denominators of 12 or less and decimals through thousandths.) Students with strong number sense for rational numbers – conceptual thought patterns for comparing fractions – and place value understanding for decimals will find it unnecessary to change all the numbers to one form (fractions) or another (decimals) to order a given set of numbers written as fractions, mixed numbers, and decimals. All students should: Understand the relationship between commonly used fractions and their decimal form. Understand that fractions and decimals can be ordered from least to greatest. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Represent fractions for halves, fourths, fifths, eighths, and tenths in their equivalent decimal forms. Represent decimals in their equivalent fraction form of half, fourth, fifth, eighth, and tenth. Determine equivalent relationships between decimals and fractions with denominators up to 12. Order a given set of no more than five numbers written as fractions and mixed numbers, with denominators of 12 or less, and decimals from least to greatest. continued Updated July 2009 Grade 5 Curriculum Map—page 9 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Number and Number Sense Subject: Essential Understanding 5.2 continued All students should: Understand the relationship between commonly used fractions and their decimal form. Understand that fractions and decimals can be ordered from least to greatest. Conceptual Thought Patterns for Comparison of Fractions: SOL Reporting Category Number and Number Sense PWC Grade Level Objective 5.2 Virginia SOL 5.2 5.2A The student will recognize and name commonly used fractions (halves, fourths, fifths, eighths, and tenths) in their equivalent decimal form and vice versa. 5.2B The student will order a given set of fractions and decimals from least to greatest. Fractions will include like and unlike denominators limited to 12 or less and mixed numbers. Different number of the same-sized parts 3 Concept Order and Compare Fractions < 5 5 4 5 Same number of parts of different sizes 3 > 3 Visualize: 8 4 More or less than one-half or one whole, e.g. 4 > 2 7 5 Distance from one-half or one whole 9 > 3 4 10 Year: Revised 2009 is a little more than 1 2 7 but 2 is a little less than 1 5 2 Visualize: 9 is 1 away from one whole 10 10 but 3 is 1 away from one whole. 4 4 The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Represent fractions for halves, fourths, fifths, eighths, and tenths in their equivalent decimal forms. Represent decimals in their equivalent fraction form of half, fourth, fifth, eighth, and tenth. Determine equivalent relationships between decimals and fractions with denominators up to 12. Order a given set of no more than five numbers written as fractions and mixed numbers, with denominators of 12 or less, and decimals from least to greatest. *NOTE: In this country, the study of percent has traditionally been delayed until students have worked extensively with fractions and decimals. Research on student understanding of rational numbers, however, supports learning about the different forms of rational numbers together to build deeper, more connected conceptual understanding. For example, associating 20% with 1/5 and 0.2 and examining contexts in which they might be used help students recognize that these values have the same relationship to the other numbers in our number system. For example, 1/5 of 10 or 0.2 x 10 or 20% of 10) will always equal 2, no matter what the 10 represents. Similarly, students benefit from investigating contexts in which they use rational numbers to describe numbers greater than one. Students who have internalized the notion that a fraction represents a part of a whole, may have difficulty conceptualizing the meaning of fraction operations (e.g., 6 ½ x ¾). Likewise, if students conceptualize percentages only as a way of expressing parts of 100, they may have difficulty understanding percents over 100%. Associating alternative representations for quantities (e.g., 1 ¼ , 5/4, 1.75, and 175%) and thinking about contexts in which they may be used allows students to develop the deeper understanding of rational numbers necessary for future study of computation with rational numbers and ratio. Updated July 2009 Grade 5 Curriculum Map—page 10 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Number and Number Sense SOL Reporting Category Number and Number Sense Concept Order and Compare Fractions PWC Grade Level Objective 5.2 Virginia SOL 5.2 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 4 & 6 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Number and Operations in Grades 3-5, NCTM Nimble with Numbers Grades 4-5 & 5-6 by Leah Childs and Laura Choate Number Sense Grade 4-6 by McIntosh and others – Section 3 Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)—Name That Portion, Scott Foresman The Super Source books- Pattern Blocks, Color Tiles, Snap Cubes and Cuisenaire Rods Lessons for Introducing Fractions, Grade 4-5 by Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 11 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Computation and Estimation Computation and estimation in grades 4 and 5 should focus on developing fluency in multiplication and division with whole numbers and should begin to extend students’ understanding of these operations to working with fractions and decimals. Instruction should focus on computation activities that enable students to model, explain, and develop reasonable proficiency with basic facts and algorithms. These proficiencies are often developed as a result of investigations and opportunities to develop algorithms. Additionally, opportunities to develop and use visual models, benchmarks, and equivalents, to add and subtract with common fractions, and to develop computational procedures for the addition and subtraction of decimals are a priority for instruction in these grades. Students should develop an understanding of how whole numbers, fractions, and decimals are written and modeled; an understanding of the meaning of multiplication and division, including multiple representations (e.g., multiplication as repeated addition or as an array); an ability to identify and use relationships between operations to solve problems (e.g., multiplication as the inverse of division); and the ability to use (not identify) properties of operations to solve problems [e.g., 7 28 is equivalent to (7 20) + (7 8), or (7 30) – (7 2)]. Students should develop computational estimation strategies based on an understanding of number concepts, properties, and relationships. Practice should include estimation of sums and differences of common fractions and decimals, using benchmarks 2 1 1 (e.g., 5 + 3 must be less than 1 because both fractions are less than 2 ). Using estimation, students should develop strategies to recognize the reasonableness of their computations. Additionally, students should enhance their ability to select an appropriate problem-solving method from among estimation, mental math, paper-and-pencil algorithms, and the use of calculators and computers. With activities that challenge students to use this knowledge and these skills to solve problems in many contexts, students develop the foundation to ensure success and achievement in higher mathematics. Updated July 2009 Grade 5 Curriculum Map—page 12 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Whole Numbers: Addition and Subtraction Multiplication and Division Grade Level Objective 5.3 5.3A The student will create and solve problems involving addition and subtraction of whole numbers using paper and pencil, estimation, mental computation, and calculators. 5.3B The student will create and solve problems involving multiplication and division of whole numbers using paper and pencil, estimation, mental computation, and calculators. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How are the four basic operations related to one another? What situations call for the computation of sums? ... differences? …products? …quotients? How do we determine whether it is more appropriate to estimate the solutions to problems than to compute them? What determines a reasonable estimation for a given situation? How is estimation used to check the reasonableness of the computation involved in solving a problem? How can we use place value understandings, the relationships between operations, and the properties of numbers to devise efficient estimation and computation strategies for addition and subtraction? How can we use place value understandings, the relationships between operations, and the properties of numbers to devise efficient estimation and computation strategies for multiplication and division? When is it advantageous to use an alternative computation strategy? …a traditional computational algorithm? Understanding the Objective (Teacher Notes) A major goal of problem-solving instruction is to enable students to develop strategies to solve problems. Strategies include but are not limited to using manipulatives, making an organized list or table, using trial and error, drawing a diagram, looking for a pattern, and acting out a problem. An example of an approach to solving problems is Polya’s four-step plan shown below. Specific steps are not to be taught. They are to be used as an organizer for planning and problem solving. Polya’s steps: Virginia SOL 5.3 Understand — Retell the problem, read it twice, take notes, study the charts or diagrams, look The student will create and solve problems up words and symbols that are new. involving addition, subtraction, Plan — Decide what operation(s) to use and what sequence of steps to use to solve the multiplication, and division of whole numbers problem. using paper and pencil, estimation, mental Solve — Follow the plan and work accurately. If the first attempt doesn’t work, try another computation, and calculators. plan. Look back — Does the answer make sense? All students should: Select appropriate methods and tools for computing with whole numbers from among paper and pencil, estimation, mental computation, and calculators according to the context and nature of the computation. Understand the meaning of mathematical operations and how these operations relate to one another when creating and solving word problems. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Create problems involving the operations of addition, subtraction, multiplication, and division of whole numbers, using real life situations. Estimate the sum, difference, product, and quotient of whole number computation. Solve problems involving addition, subtraction, multiplication, and division of whole numbers, using paper and pencil, mental computation, and calculators, where: sums and differences, and products will not exceed five digits. multipliers will not exceed two digits. divisors will not exceed two digits. dividends will not exceed four digits. An estimate is a number close to an exact amount. An estimate tells about how much or about how many. Estimation is useful for approximations in everyday situations. (Do I have enough money? How big a turkey will I need for 12 people?) Estimation also provides a tool for judging the reasonableness of calculator, mental, and paper-pencil computation. continued Updated July 2009 Grade 5 Curriculum Map—page 13 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Year: Revised 2009 Essential Understanding 5.3 continued All students should: Select appropriate methods and tools for An estimate produces answers that are “good enough” for the purpose. The situation determines computing with whole numbers from among what we need to know and, thus, the strategy we use for estimation. Consider the sum: $349.29 + paper and pencil, estimation, mental SOL Reporting Category Computation and Estimation $85. 99 + $175.25. For the three prices, the question, “About how much?” is very different from, “Is computation, and calculators according to it more than $600?” Students should consider the context when deciding what estimation strategy to the context and nature of the computation. use. They should be able to explain and justify their strategy and describe the closeness of their Understand the meaning of mathematical Concept estimate. Different strategies for estimation include rounding, compatible numbers, front-end operations and how these operations relate Whole Numbers: estimation, and compensation. to one another when creating and solving Addition and Subtraction word problems. Multiplication and Division Compatible numbers are numbers that are easy to work with mentally. For example, 52 + 74 can be estimated using 50 + 75. The product 291 x 27 is close to 300 x 25. The quotient 4929 ÷ 26 is close The student will use problem solving, Grade Level Objective 5.3 to 4800 ÷ 24 or 5000 ÷ 25. mathematical communication, mathematical 5.3A The student will create and solve reasoning, connections, and representation to: problems involving addition and subtraction Front-end or leading digit estimation is useful when totaling many large numbers, e.g. the number Create problems involving the operations of of whole numbers using paper and pencil, of people who attended football games in a season. Front-end estimation of sums always gives a addition, subtraction, multiplication, and estimation, mental computation, and sum less than the actual sum; however, the estimate can be adjusted or refined so it is closer to the division of whole numbers, using real life calculators. actual sum. For example, 9,162 + 5, 643 + 6,636 could be estimated using 9,000 + 5,000 + 6,000. situations. (To refine the estimate, one might glance down the hundreds in each number and see that the Estimate the sum, difference, product, and 5.3B The student will create and solve estimate could be increased by 1,000.) quotient of whole number computation. problems involving multiplication and Solve problems involving addition, division of whole numbers using paper and Compensation is a strategy shoppers may use when mentally estimating a total purchase amount. subtraction, multiplication, and division of pencil, estimation, mental computation, and For example, $2.38 + $5.22 + $0.39 may be estimated as $2 + $5 + $1 (where the $1 represents an whole numbers, using paper and pencil, calculators. approximation of the accumulated cent amounts: .38 + .22 + .39) mental computation, and calculators, where: sums and differences, and products will Virginia SOL 5.3 Rounding to a given place is another method of estimation. not exceed five digits. The student will create and solve problems multipliers will not exceed two digits. involving addition, subtraction, ≈ 4,000 divisors will not exceed two digits. multiplication, and division of whole numbers 3,654 5,421 ≈ 5,000 dividends will not exceed four digits. using paper and pencil, estimation, mental +2,793 ≈ +3,000 computation, and calculators. 12,000 Computational strategies for addition, subtraction, multiplication, and division develop from deep experience-based understandings of place value, the characteristics of and relationships among the four basic operations, and the properties of numbers. Computational fluency is supported by fluency with basic number combinations. Fluency with number combinations (“facts”) develops from a firm and flexible understanding of number and operation and a focus on thinking. continued Updated July 2009 Grade 5 Curriculum Map—page 14 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Whole Numbers: Addition and Subtraction Multiplication and Division Fifth Grade Mathematics Year: Revised 2009 Essential Questions Understanding the Objective Essential Understanding More than one efficient and accurate algorithm exists for each of the operations. Preferred algorithms vary across cultures. Students are computationally fluent when they show flexibility in the computational methods they choose, are able to explain those methods, and produce answers accurately and efficiently. Students should develop the flexibility to select computational procedures appropriate to particular situations. For certain situations, an algorithm may provide the most efficient route to solution; for others, alternative strategies may be more efficient. All students should: Select appropriate methods and tools for computing with whole numbers from among paper and pencil, estimation, mental computation, and calculators according to the context and nature of the computation. Understand the meaning of mathematical operations and how these operations relate to one another when creating and solving word problems. Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: 5.3 continued For example, to compute 2983 + 4729, a student might use the following mental strategy involving the commutative property, approximation, and compensation: 4729 + 3000 = 7729; 7729 - 20 = 7709; 7709 + 3 = 7712. The student will use problem solving, mathematical communication, mathematical Similarly, in a situation requiring students to find the difference between 4002 and 1786, the student reasoning, connections, and representation to: might apply his/her understandings of equality and the operation of subtraction to create an Create problems involving the operations of equivalent problem which can be computed without regrouping: 3999 – 1783 = 2216. (In this case addition, subtraction, multiplication, and the student knew that the difference would remain the same if both the minuend and subtrahend division of whole numbers, using real life were decreased by the same amount.) situations. Estimate the sum, difference, product, and 5.3B The student will create and solve Another student might apply an understanding of inverse operations and an open number line to quotient of whole number computation. problems involving multiplication and compute the difference 4002 – 1786: Solve problems involving addition, division of whole numbers using paper and subtraction, multiplication, and division of pencil, estimation, mental computation, and +4 +10 +200 +2000 +2 = 2,216 whole numbers, using paper and pencil, calculators. mental computation, and calculators, where: 1786 1790 1800 2000 4000 4002 sums and differences, and products will Virginia SOL 5.3 not exceed five digits. The student will create and solve problems Students will benefit from decomposing factors and applying the distributive property to compute multipliers will not exceed two digits. involving addition, subtraction, products. Often called the partial product method, this strategy can be modeled with base ten divisors will not exceed two digits. multiplication, and division of whole numbers materials and provides a foundation for multiplying polynomials in algebra. For example, 24 x 13 = dividends will not exceed four digits. using paper and pencil, estimation, mental (20 + 4) x (10 + 3) may be shown using partial products, or, using a matrix, as shown below: computation, and calculators. 24 x 13 20 4 20 x 10 200 10 200 40 240 20 x 3 60 3 60 12 + 72 4 x 10 40 312 4x3 12 312 Grade Level Objective 5.3 5.3A The student will create and solve problems involving addition and subtraction of whole numbers using paper and pencil, estimation, mental computation, and calculators. Students should be able to explain how this application of the distributive property underlies the U.S. traditional multiplication algorithm. continued Updated July 2009 Grade 5 Curriculum Map—page 15 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Whole Numbers: Addition and Subtraction Multiplication and Division Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: 5.3 continued Students should not limit themselves to multiplication algorithms when computing products, however. Depending upon the problem, other strategies may be more efficient. Some can enable mental computation. For example, using doubling and halving twice: 75 x 16 = 150 x 8 = 300 x 4 = 1200. Students will also benefit from the exploration of number-sense based strategies for computing quotients. Year: Revised 2009 Essential Understanding All students should: Select appropriate methods and tools for computing with whole numbers from among paper and pencil, estimation, mental computation, and calculators according to the context and nature of the computation. Understand the meaning of mathematical operations and how these operations relate to one another when creating and solving word problems. As students develop computational methods, they should be encouraged to share and explain them to their peers. As students share their computational strategies with their classmates, they test, refine, and solidify their own thinking, learn from one another, and analyze the efficiency of various The student will use problem solving, Grade Level Objective 5.3 mathematical communication, mathematical approaches. 5.3A The student will create and solve reasoning, connections, and representation to: problems involving addition and subtraction A certain amount of practice is necessary to develop fluency with computational strategies for Create problems involving the operations of of whole numbers using paper and pencil, multi-digit numbers; however, the practice must be meaningful, engaging and purposeful if students addition, subtraction, multiplication, and estimation, mental computation, and are to develop fluency in computation. Calculators are appropriate tools for solving problems with division of whole numbers, using real life calculators. large numbers. Using calculators during problem solving changes the focus from the steps in the situations. computational algorithm to the process for solving the problem. Estimate the sum, difference, product, and 5.3B The student will create and solve quotient of whole number computation. problems involving multiplication and Solve problems involving addition, division of whole numbers using paper and subtraction, multiplication, and division of pencil, estimation, mental computation, and whole numbers, using paper and pencil, calculators. mental computation, and calculators, where: sums and differences, and products will Virginia SOL 5.3 not exceed five digits. The student will create and solve problems multipliers will not exceed two digits. involving addition, subtraction, divisors will not exceed two digits. multiplication, and division of whole numbers dividends will not exceed four digits. using paper and pencil, estimation, mental computation, and calculators. Updated July 2009 Grade 5 Curriculum Map—page 16 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Whole Numbers: Addition and Subtraction Multiplication and Division Grade Level Objective 5.3 Virginia SOL 5.3 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 1, 3, & 7 and TenMinute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Number and Operations in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004): Building on Numbers You Know, Scott Foresman Nimble with Numbers Grades 4-5 & 5-6 by Leah Childs and Laura Choate Number Sense Grade 4-6 by McIntosh and others Fundamentals Levels 4-5 & 5-6, Origo The Good Time Math Event Book by Marilyn Burns Lessons for Extending Multiplication, Grades 4-5, by Maryann Wickett and Marilyn Burns Lessons for Introducing Division, Grades 3-4 by Maryann Wickett, Susan Ohanian, and Marilyn Burns Lessons for Extending Division, Grades 4-5 by Maryann Wickett and Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Save the Best For Last,” What's Next?" Volume 1 "Peddle the Metal,” Hardhatting in a Geo-World "Magic Multiplication,” What's Next? Volume 1 "From Fractions to Decimals,” What's Next? Volume 2 Updated July 2009 Grade 5 Curriculum Map—page 17 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Addition, Subtraction, and Multiplication of Decimals PWC Grade Level Objective 5.4 5.4A The student will find the sum and difference of two numbers expressed as decimals through thousandths using an appropriate method of calculation including paper and pencil, estimation, mental computation, and calculators. 5.4B The student will find the product of two numbers expressed as decimals through thousandths using an appropriate method of calculation including paper and pencil, estimation, mental computation, and calculators. Virginia SOL 5.4 The student will find the sum, difference, and product of two numbers expressed as decimals through thousandths, using an appropriate method of calculation, including paper and pencil, estimation, mental computation, and calculators. Updated July 2009 School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions What situations require the addition or subtraction of decimal numbers? How are operations with decimals similar to or different from those used with whole numbers? How can we use models and pictures to demonstrate why multiplication of two numbers does not always result in a larger product? What strategies can be developed to estimate and compute sums, differences and products of numbers expressed as decimals? How can estimation skills and computational strategies/algorithms reinforce one another? Understanding the Objective (Teacher Notes) The understanding that a decimal is part of a whole is critical to the computation of decimals. Place value of decimal numbers must be developed for students to understand computation with decimals. Year: Revised 2009 Essential Understanding All students should: Use the same procedures developed for whole number computation and apply them to decimal place values, giving attention to the placement of the decimal point in the solution. Select appropriate methods and tools for computing with decimals numbers from among paper and pencil, estimation, mental computation, and calculators according to the context and nature of the computation. The student will use problem solving, mathematical communication, mathematical Strategies for whole number computation may be applied with attention to decimal place values. It is important, however, that the “rules” for placement of the decimal point should be derived through reasoning, connections, and representation to: Determine an appropriate method of number sense rather than rote memorization. calculation to find the sum, difference, and product of two numbers expressed as Decimal computation, particularly multiplication and division by decimal numbers, requires that decimals through thousandths selecting students understand decimal quantities and the conceptual meaning of each operation. (For from among paper and pencil, estimation, example, students cannot rely on the naive conceptions that multiplication makes larger and mental computation, and calculators. division makes smaller.) Estimation and models play critical roles in developing understanding for Connect decimals to metric system. decimal computation. Symbolic manipulation (procedural algorithms) should not be emphasized Estimate the sum, difference, and product of until conceptual understanding is established. two numbers expressed as decimals through thousandths. Addition and subtraction of decimals should be explored using a variety of models (e.g., 10 x 10 Find the sum, difference, and product of two grids, number lines, and money) in the context of realistic problems. Students should both solve and numbers expressed as decimals through create problems involving decimals. thousandths, using paper and pencil. Find the sum, difference, and product of two Decimal sums and differences may be estimated using rounding and approximate fractional numbers expressed as decimals through equivalents; for example, 3.712 + 1.4 is close to 4 + 1, or 5; more precisely, 3.712 + 1.4 is close to thousandths, using mental computation. 3 ¾ + 1 ½ , or 5 ¼. The context of the problem should guide the selection of method and the Find the sum, difference, and product of two precision needed. numbers expressed as decimals through thousandths, using calculators. Area models can be used to demonstrate that the product of decimals is dependent upon the two Use estimation to check the reasonableness factors being multiplied. of the sum, difference, and product. Factors Product tenths x tenths = hundredths tenths x hundredths = thousandths hundredths x hundredths = ten-thousandths tenths x thousandths = ten-thousandths continued Grade 5 Curriculum Map—page 18 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: 5.4 continued Models demonstrate visually why the product of two numbers may be smaller than the factors. For example, 0.5 x 0.4 may be thought of as 1/2 of 4/10 or 4/10 of 1/2. 0.5 x 0.4 = 0.2 can be modeled by shading 0.5 horizontally on a 10 x 10 grid, and shading 0.4 vertically. The overlap represents the product 0.20 or 0.2. Concept Addition, Subtraction, and Multiplication of Decimals PWC Grade Level Objective 5.4 5.4A The student will find the sum and difference of two numbers expressed as decimals through thousandths using an appropriate method of calculation including paper and pencil, estimation, mental computation, and calculators. 5.4B The student will find the product of two numbers expressed as decimals through thousandths using an appropriate method of calculation including paper and pencil, estimation, mental computation, and calculators. Similar models can be drawn on grid paper to represent the multiplication of mixed decimals (e.g., 1.3 x 2.7). Virginia SOL 5.4 The student will find the sum, difference, and product of two numbers expressed as decimals through thousandths, using an appropriate method of calculation, including paper and pencil, estimation, mental computation, and calculators. In cases where an exact product is not required, the product of decimals may be estimated using strategies for multiplying whole numbers, such as front-end and compatible numbers, or rounding. In each case the student needs to determine where to place the decimal point to ensure that the product is reasonable. Updated July 2009 The traditional algorithm for computation of decimal products is similar to the procedure developed for whole number computation, giving attention to the placement of the decimal point in the solution. Estimation should be used to determine placement of the decimal point. Year: Revised 2009 Essential Understanding All students should: Use the same procedures developed for whole number computation and apply them to decimal place values, giving attention to the placement of the decimal point in the solution. Select appropriate methods and tools for computing with decimals numbers from among paper and pencil, estimation, mental computation, and calculators according to the context and nature of the computation. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Determine an appropriate method of calculation to find the sum, difference, and product of two numbers expressed as decimals through thousandths selecting from among paper and pencil, estimation, mental computation, and calculators. Connect decimals to metric system. Estimate the sum, difference, and product of two numbers expressed as decimals through thousandths. Find the sum, difference, and product of two numbers expressed as decimals through thousandths, using paper and pencil. Find the sum, difference, and product of two numbers expressed as decimals through thousandths, using mental computation. Find the sum, difference, and product of two numbers expressed as decimals through thousandths, using calculators. Use estimation to check the reasonableness of the sum, difference, and product. Grade 5 Curriculum Map—page 19 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Addition, Subtraction, and Multiplication of Decimals PWC Grade Level Objective 5.4 Virginia SOL 5.4 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 6 and 7 and TenMinute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Investigations in Number, Data, and Space (2004)-- Name That Portion, Scott Foresman Elementary and Middle School Mathematics by John Van de Walle Nimble with Numbers Grades 5-6 by Leah Childs and Laura Choate Number Sense Grades 4-6 by McIntosh and others Fundamentals Levels 4-5 & 5-6, Origo Lessons for Decimals and Percents by Carrie DeFrancisco and Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 20 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Division with Remainders PWC Grade Level Objective 5.5 5.5A The student will estimate the quotient of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5B The student will determine the quotient and remainder of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5C The student will create and solve reallife problems using division of whole numbers. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Year: Revised 2009 Essential Understanding Essential Questions How can the relationship between multiplication and division be used to estimate and solve problems involving division situations? How can place value understandings and number sense be used to devise strategies for estimating and computing quotients with one- and two-digit divisors? How can estimates be used to check the reasonableness of answers? How is the U.S. traditional division algorithm similar to and different from other strategies for dividing whole numbers? How does the problem situation determine how to represent a remainder? All students should: Understand the various meanings of division and its effect on whole numbers. Understand horizontal, computational, and fractional representations of division. For example: Understanding the Objective (Teacher Notes) Division is the operation of making equal parts (groups or shares). There are two situations that require division: Finding the size of the group when you know the original amount and the number of groups. This is technically referred to as partitive division, because the action involved is one of dividing or partitioning a set into a predetermined number of groups. In a card game, dealing cards equally to each player is a partitive division process. Finding the number of groups when you know the original amount and the size of the group. This is called quotitive or measurement division. Repeated subtraction models the quotitive division process. dividend divisor = quotient 8 2 = 4 quotient divisor ) dividend dividend divisor = quotient 4 2)8 8 4 2 The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Estimate the quotient of two whole numbers, when given a dividend of four digits or fewer and a divisor of two digits Both partitive and quotitive division situations may be modeled with base-ten or set Virginia SOL 5.5 or fewer. manipulatives. Modeling division problems using area (array) and set models helps students The student, given a dividend of four digits or Determine the quotient (no remainder) of conceptualize the nature of the remainder with respect to the other terms used in division. fewer and a divisor of two digits or fewer, two whole numbers when given a dividend will find the quotient and remainder. of four digits or fewer and a divisor of two Division is the inverse of multiplication; therefore, multiplication and division are inverse operations. digits or fewer. Terms used in division include: Determine the quotient and remainder of two whole numbers when given a dividend divisor - the quantity by which another quantity is to be divided of four digits or fewer and a divisor of two dividend - the quantity to be divided digits or fewer. quotient - the result of division Use estimation to check the reasonableness of the quotient. Representations for division include: horizontal form: computational form: fractional form: dividend divisor = quotient quotient divisor )dividend dividend = quotient divisor continued Updated July 2009 Grade 5 Curriculum Map—page 21 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Division with Remainders PWC Grade Level Objective 5.5 5.5A The student will estimate the quotient of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5B The student will determine the quotient and remainder of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5C The student will create and solve reallife problems using division of whole numbers. Virginia SOL 5.5 The student, given a dividend of four digits or fewer and a divisor of two digits or fewer, will find the quotient and remainder. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Essential Understanding 5.5 continued Students should recognize dividends and divisors given in various forms (horizontal, computational, and fractional) and be able to write one way given another. They also need to investigate and model the relationships among factors and product in multiplication and the divisor, quotient, and dividend in division. Area (array) models can be used to demonstrate these relationships. All students should: Understand the various meanings of division and its effect on whole numbers. Understand horizontal, computational, and fractional representations of division. For example: By exploring the effects of multiplying or dividing the numerator and denominator of fractions by the same number, students build an understanding of equivalence in fractions. Students can apply the same principle to the dividend and divisor in division situations and understand that the quotient is not changed in value. This idea can be applied as a strategy to simplify computation; for example: 270 ÷ 45 = 30 ÷ 5 = 6 (270 and 45 are both divided by 9) Students should have opportunities to explore various strategies for division with one- and two-digit divisors. Students’ understanding of the concept of division is strengthened by investigating various approaches such as repeated multiplication and subtraction as well as traditional algorithms. More than one efficient and accurate algorithm exists for division with multi-digit dividends, and preferred algorithms vary across cultures. Facility with “partial quotient” algorithms, which preserve the place value of all numbers, provides a foundation for students’ understanding of the traditional U.S. long division algorithm. (It is particularly “forgiving” for division with multi-digit divisors.) Partial Quotient Algorithm 72) 2531 - 2160 371 - 360 11 30 + 5 35 R11 Less Sophisticated Partial Quotient Algorithm 72) 2531 - 720 10 1811 - 720 10 1091 - 720 10 371 - 360 + 5 11 35 R11 Year: Revised 2009 Traditional U.S. Algorithm 35 R11 72) 2531 216 371 360 11 dividend divisor = quotient 8 2 = 4 quotient divisor ) dividend dividend divisor = quotient 4 2)8 8 4 2 The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Estimate the quotient of two whole numbers, when given a dividend of four digits or fewer and a divisor of two digits or fewer. Determine the quotient (no remainder) of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. Determine the quotient and remainder of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. Use estimation to check the reasonableness of the quotient. continued Updated July 2009 Grade 5 Curriculum Map—page 22 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Division with Remainders PWC Grade Level Objective 5.5 5.5A The student will estimate the quotient of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5B The student will determine the quotient and remainder of two whole numbers when given a dividend of four digits or fewer and a divisor of two digits or fewer. 5.5C The student will create and solve reallife problems using division of whole numbers. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Year: Revised 2009 Essential Understanding 5.5 continued All students should: Understand the various meanings of Students are computationally fluent when they show flexibility in the computational methods they division and its effect on whole numbers. choose, are able to explain those methods, and produce answers accurately and efficiently. Understand horizontal, computational, and fractional representations of division. For A remainder is an amount left over once the division is complete. Remainders occur when the divisor example: is not a factor of the dividend. Students need experience exploring the meaning of remainders in various problem contexts and determining when it makes sense to express remainders as whole dividend divisor = quotient 8 2 = 4 numbers, express them as fractions, ignore them, or to round up to the next whole number. For example, the following problems illustrate how the remainder to the same division computation quotient 4 problem means different things in different situations. divisor ) dividend 2)8 If 39 people are going to Kings Dominion and each van holds 6 people, how many vans are needed for the trip? 7 vans are needed. (The remainder tells us we need a 7th van.) If a ribbon is 39 in. long and Sue needs 6-inch pieces to put on each nametag, how many nametags can she complete? 6 nametags can be completed. (The remainder tells us there will be ribbon left over, but not enough for another nametag.) If 39 cookies are divided evenly between 6 children, how many will each get? 6 ½ cookies each (Because cookies can be divided, the remainder can be represented as a fractional part in the quotient.) dividend divisor = quotient 8 4 2 The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Estimate the quotient of two whole numbers, when given a dividend of four An estimate produces answers that are “good enough” for the purpose. The situation determines what digits or fewer and a divisor of two digits Virginia SOL 5.5 we need to know and, thus, influences the strategy we select for estimation. The specific quantities in or fewer. The student, given a dividend of four digits or the dividend and divisor may also influence our approach to estimation. Strategies for estimating Determine the quotient (no remainder) of fewer and a divisor of two digits or fewer, quotients may include using front-end digits, rounding, compatible numbers, and chunking. Terms two whole numbers when given a dividend will find the quotient and remainder. such as "closer to," "between," and "more than" are used to define the estimated quotients. of four digits or fewer and a divisor of two digits or fewer. For example, for 329 8, rounding the dividend to the nearest compatible number (320) is more Determine the quotient and remainder of two whole numbers when given a dividend manageable than rounding to the nearest ten (330) or hundred (300). 320 8 = 40. We know that the of four digits or fewer and a divisor of two estimated quotient 40 is slightly less than the actual quotient, because 320 is less than 329. digits or fewer. Use estimation to check the reasonableness of the quotient. Updated July 2009 Grade 5 Curriculum Map—page 23 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Division with Remainders PWC Grade Level Objective 5.5 Virginia SOL 5.5 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 1 and 7 and TenMinute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Number and Operations in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle The Super Source books – Color Tiles, Base 10 Investigations in Number, Data, and Space (2004) – Building on Numbers You Know, Scott Foresman Nimble with Numbers Grades 5-6 by Leah Childs and Laura Choate Number Sense Grades 4-6 by McIntosh and others The Good Time Math Event Book by Marilyn Burns Math Works, Math Sequence, Exploring Mathematics by Jean Show Lessons for Extending Division, Grades 4-5, by Maryann Wickett and Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Save the Best For Last,” What’s Next? Volume 1 "Peddle the Metal,” Hardhatting in a Geo-World "Magic Multiplication,” What's Next? Volume 1 "From Fractions to Decimals,” What's Next? Volume 2 "Let's Recycle,” Overhead and Underfoot Updated July 2009 Grade 5 Curriculum Map—page 24 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Division With Decimals PWC Grade Level Objective 5.6 5.6A The student will find the quotient of a problem with a dividend expressed as a decimal through thousandths and a single digit divisor (whole number). 5.6B The student will estimate solutions to division problems involving decimals. Virginia SOL 5.6 The student, given a dividend expressed as a decimal through thousandths and a single digit divisor, will find the quotient. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Essential Questions How can estimation of quotients aid in finding the quotients of problems with dividends expressed as decimals? How are division algorithms used when dividing decimal numbers? Understanding the Objective (Teacher Notes) Please refer to Objective 5.5 Teacher Notes for discussion of division concepts. Both the fair share and measurement (repeated subtraction) concepts of decimal division can be modeled using base-ten manipulatives (e.g., base-ten blocks or play money). The traditional division algorithm is based upon the action of repeated subtraction. Understanding the place value of each digit in a decimal number is critical to understanding the division of decimals. Estimation should be used to establish the approximate magnitude of the quotient and, thus, the correct placement of the decimal point in the quotient, as well as to check the reasonableness of the computed quotient. Long division algorithms for division of decimals are similar to the procedure students developed for whole number computation. As in the multiplication algorithm with decimal numbers, it is reasonable to perform the division computation as if all numbers were whole numbers and then place the decimal point based on the estimated quotient. Long division is the one traditional algorithm that starts with the left-hand place or larger pieces. The understanding of a decimal as part of a whole is critical to computation of decimals. Year: Revised 2009 Essential Understanding All students should: Use the procedures developed for whole number division and apply these procedures to decimal place values, giving attention to the placement of the decimal point in the solution. Be able to correctly place the decimal in a quotient based on estimation. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Determine the quotient, given a dividend expressed as a decimal through tenthousandths (and no annexing of zeros during the division process) with a singledigit divisor. All dividends should be evenly divisible by the divisor. Use estimation to check the reasonableness of the quotient. By exploring the effects of multiplying or dividing the numerator and denominator of fractions by the same number, students build an understanding of equivalence in fractions. Students can apply the same principle to the dividend and divisor in division situations and understand that the quotient is not changed in value. This understanding underlies the “moving the decimal point” algorithm for finding quotients with decimal divisors; for example: 6.7^ ) 45.93^ Updated July 2009 Moving the decimal point one place to the right in both divisor and dividend is actually the result of multiplying both divisor and dividend by 10, thus creating an equivalent problem. Grade 5 Curriculum Map—page 25 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation CMS Unit of Study Decimals SOL Reporting Category Computation and Estimation Concept Division With Decimals PWC Grade Level Objective 5.6 Virginia SOL 5.6 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 7 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Investigations in Number, Data, and Space (2004) – Name That Portion, Scott Foresman Nimble with Numbers Grades 5-6 by Leah Childs and Laura Choate The Super Source books – Base 10 Blocks Elementary and Middle School Mathematics by John Van deWalle Exploring Mathematics by Jean Show The Good Time Math Event Book by Marilyn Burns Hands on Math by Bill Linderman Lessons for Decimals and Percents, Grades 5-6 by Carrie De Francisco and Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 26 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation SOL Reporting Category Computation and Estimation Concept Addition and Subtraction of Fractions PWC Grade Level Objective 5.7 5.7A The student will add and subtract with fractions and mixed numerals, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators limited to 12 or less. 5.7B The student will rename improper fractions as mixed numbers and vice versa. Virginia SOL 5.7 The student will add and subtract with fractions and mixed numbers, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators, limited to 12 or less. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions What does it mean to “simplify” a fraction, and why is it important? How can models be used to explain why the value of a fraction isn’t changed when the numerator and denominator are multiplied or divided by the same number? How can we use models to devise strategies for renaming improper fractions as mixed numbers and vice versa? How is the understanding of multiples and factors useful in renaming/simplifying fractions and mixed numbers? How can we use mental models, benchmarks, and approximate decimal equivalents to estimate sums and differences of fractions? What strategies can be developed to compute sums and differences with fractions and mixed numbers? Why is it necessary to rename fractions to have common denominators when using the traditional algorithm for adding and subtracting fractions? All students should: Develop and use strategies to estimate and compute addition and subtraction of fractions. Understand the concept of least common multiple and least common denominator. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Add and subtract fractions having like and unlike denominators. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Add and subtract with mixed numerals having like and unlike denominators, with Understanding the Objective (Teacher Notes) and without regrouping. Denominators A fraction is in simplest form when its numerator and denominator have no common factors other should be limited to 12 or less, and answers than 1. The term “simplify” should be used instead of “reduce.” When we rename a fraction in should be expressed in simplest form. 6 3 lowest terms, it does not become smaller as the word “reduce” implies: and are equivalent. Use estimation to check the reasonableness 8 4 of the sum or difference. Rename fractions with unlike denominators A fraction with a numerator greater than (or equal to) its denominator represents a number greater of 12 or less before addition and subtraction than (or equal to) 1. The term “improper fraction” is misleading. There are instances when a is performed. fraction greater than 1 is preferable to its mixed number equivalent. Rename improper fractions as mixed numbers and vice versa. A fraction represents a quantity in relation to some unit as a whole. In their early work with Find a common denominator before adding fractions, students focused on fractions which represented parts of one whole. As students work and subtracting fractions with unlike with fractions greater than one (“improper fractions”) and mixed numbers, they need to expand their denominators by finding the least common understanding of fractions to include the possibility of representing more than one whole. Students multiple of the denominators. should use fraction models and number lines to convert mixed numbers to fractions greater than one Express a fraction in simplest form (i.e. (improper fractions) and vice versa in order to derive the generalizations for procedures. Mixed rename in lowest terms) by dividing the numbers may be expressed as a fraction by multiplying the whole number by the denominator and numerator and denominator by their greatest adding the numerator (keeping the same denominator). Improper fractions may be expressed as common factor. mixed numbers by dividing the numerator by the denominator and using the remainder to write the fractional part of the quotient. Writing a fraction in simplest form (renaming a fraction such as 10/8 as another fraction 5/4) is not the same as changing an improper fraction to a mixed number. For example, both 5 and its 4 equivalent 1 1 are in simplest form, but 10/8 is not in simplest form. 4 continued Updated July 2009 Grade 5 Curriculum Map—page 27 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Essential Understanding 5.7 continued Fractions having like denominators are said to have common denominators. SOL Reporting Category Computation and Estimation Concept Addition and Subtraction of Fractions PWC Grade Level Objective 5.7 5.7A The student will add and subtract with fractions and mixed numerals, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators limited to 12 or less. 5.7B The student will rename improper fractions as mixed numbers and vice versa. Virginia SOL 5.7 The student will add and subtract with fractions and mixed numbers, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators, limited to 12 or less. Year: Revised 2009 Equivalent fractions name the same part of a whole. By exploring the effects of multiplying or dividing the numerator and denominator of a fraction by the same non-zero number and modeling the resulting fraction, students build an understanding of equivalence. This is reinforced by using a calculator to derive the decimal equivalents. Students build understandings and skills crucial to future success in algebra when they investigate and develop conjectures about the relationships of multiples and factors, prime and composite numbers, and even and odd numbers on the process of simplifying fractions. (For example, a fraction is in simplest form if both numbers are prime or one is prime and the other is not a multiple of the prime; a fraction cannot be in simplest form if both numbers are even; etc.) By using the multiplication chart to note the relationships among equivalent fractions, students can begin to identify and understand the concepts of least common multiple (LCM), least common denominator (LCD), and greatest common factor (GCF). They can justify the generalizations that the least common multiple (LCM) of the unlike denominators is the least common denominator (LCD) of the fractions and that a fraction may be expressed in simplest form by dividing both the numerator and denominator by their greatest common factor (GCF). Students should investigate addition and subtraction of fractions and mixed numbers using a variety of concrete and pictorial models; e.g., fraction circles or squares, fraction strips, rulers, unifix cubes, pattern blocks, egg cartons, number lines, and grid paper. Emphasis should be on conceptual development of fraction operations. Students should derive generalizations from their concrete and pictorial experiences rather than practicing and memorizing rote procedures. If students are focused on rules alone, what appears to be mastery of addition and subtraction of fractions in the short term is quickly lost (particularly when students begin to multiply and divide fractions). Presenting computation in the context of interesting story problems helps students keep the part-whole relationship in perspective and use number sense in the estimation and solution of sums and differences with fractions. Students with a good foundation with fraction concepts should be able to add and subtract fractions having like denominators immediately. Often writing the problem in words may help build understanding, e.g. one fifth plus two fifths is ___ fifths. It should not be necessary to memorize the traditional rule, “When adding or subtracting fractions having like denominators, add the numerators and use the same denominators.” All students should: Develop and use strategies to estimate and compute addition and subtraction of fractions. Understand the concept of least common multiple and least common denominator. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Add and subtract fractions having like and unlike denominators. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Add and subtract with mixed numerals having like and unlike denominators, with and without regrouping. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Use estimation to check the reasonableness of the sum or difference. Rename fractions with unlike denominators of 12 or less before addition and subtraction is performed. Rename improper fractions as mixed numbers and vice versa. Find a common denominator before adding and subtracting fractions with unlike denominators by finding the least common multiple of the denominators. Express a fraction in simplest form (i.e. rename in lowest terms) by dividing the numerator and denominator by their greatest common factor. continued Updated July 2009 Grade 5 Curriculum Map—page 28 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Addition and Subtraction of Fractions Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Essential Understanding 5.7 continued The traditional rule for adding and subtracting fractions with unlike denominators is, “When adding or subtracting fractions having unlike denominators, rewrite them as fractions with common denominators.” Although it is true that to use the traditional algorithm, you must first find the common denominator, it is not always necessary to find common denominators to add or subtract fractions with unlike denominators, especially when a student is able to visualize the fractions. PWC Grade Level Objective 5.7 5.7A The student will add and subtract with fractions and mixed numerals, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators limited to 12 or less. 7 1 For example: to add 3 + 5 one student may compute it mentally in the following steps: 8 2 1 1 3 1 7 3 + 5 = 8. I can decompose into + and add the to the to make 1 whole. 2 8 8 8 8 3 7 1 3 Then I add 8 + 1 + to find the total. So, 3 + 5 = 9 . 8 8 2 8 5.7B The student will rename improper fractions as mixed numbers and vice versa. Another student may arrive at the sum by visualizing or drawing an open number line: Virginia SOL 5.7 The student will add and subtract with fractions and mixed numbers, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators, limited to 12 or less. Problem: 3 7 1 +5 8 2 Think: +5 7 8 (start) 3 + 8 7 8 1 4 1 3 1 = , so + = 2 8 8 8 2 1 8 + 9 Year: Revised 2009 3 8 3 8 (end, solution) 9 All students should: Develop and use strategies to estimate and compute addition and subtraction of fractions. Understand the concept of least common multiple and least common denominator. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Add and subtract fractions having like and unlike denominators. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Add and subtract with mixed numerals having like and unlike denominators, with and without regrouping. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Use estimation to check the reasonableness of the sum or difference. Rename fractions with unlike denominators of 12 or less before addition and subtraction is performed. Rename improper fractions as mixed numbers and vice versa. Find a common denominator before adding and subtracting fractions with unlike denominators by finding the least common multiple of the denominators. Express a fraction in simplest form (i.e. rename in lowest terms) by dividing the numerator and denominator by their greatest common factor. continued Updated July 2009 Grade 5 Curriculum Map—page 29 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Computation and Estimation Concept Addition and Subtraction of Fractions PWC Grade Level Objective 5.7 5.7A The student will add and subtract with fractions and mixed numerals, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators limited to 12 or less. Likewise, to subtract mixed numbers, a student may visualize equivalents and use the inverse operation, addition: Problem: 8 Virginia SOL 5.7 The student will add and subtract with fractions and mixed numbers, with and without regrouping, and express answers in simplest form. Problems will include like and unlike denominators, limited to 12 or less. Updated July 2009 1 5 -2 4 6 + 10 12 (start) Visualize: clock face or egg carton, so 2 12 +5 3 + 8 3 12 = Year: Revised 2009 Essential Understanding 5.7 continued 2 5.7B The student will rename improper fractions as mixed numbers and vice versa. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: 1 3 5 10 = ; = 4 12 6 12 5 12 (solution) 5 3 12 (end) 8 By grounding students’ experiences in adding and subtracting fractions and mixed numbers with problems involving fractions they have modeled extensively and can visualize (halves, thirds, fourths, sixths, eighths, twelfths or halves, fifths, and tenths), students can come to recognize that they are, in fact, using fraction equivalents with common denominators in their own procedures. By comparing their solution strategies to the procedural algorithms for addition and subtraction of fractions and mixed numbers, they can develop an enduring understanding that will enhance procedural fluency. All students should: Develop and use strategies to estimate and compute addition and subtraction of fractions. Understand the concept of least common multiple and least common denominator. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Add and subtract fractions having like and unlike denominators. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Add and subtract with mixed numerals having like and unlike denominators, with and without regrouping. Denominators should be limited to 12 or less, and answers should be expressed in simplest form. Use estimation to check the reasonableness of the sum or difference. Rename fractions with unlike denominators of 12 or less before addition and subtraction is performed. Rename improper fractions as mixed numbers and vice versa. Find a common denominator before adding and subtracting fractions with unlike denominators by finding the least common multiple of the denominators. Express a fraction in simplest form (i.e. rename in lowest terms) by dividing the numerator and denominator by their greatest common factor. Grade 5 Curriculum Map—page 30 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Computation and Estimation Subject: Resources Concept Addition and Subtraction of Fractions PWC Grade Level Objective 5.7 Virginia SOL 5.7 SOL Reporting Category Computation and Estimation School: _____________________________ Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 4, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Number and Operations in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Name that Portion, Scott Foresman Nimble with Numbers Grades 4-5 & 5-6 by Leah Childs and Laura Choate Number Sense Grades 4-6 by McIntosh and others Fundamentals Level 4-5, Origo The Super Source books – Base 10 Blocks Weaving Your Way From Arithmetic to Mathematics With Manipulatives, Mary Laycock and Peggy McClean, p. 81-87. Lessons for Introducing Fractions, Grade 4-5 by Marilyn Burns Lessons for Extending Fractions, Grade 5 by Marilyn Burns About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "A Major Concept in Mathematics, Part IV,” AIMS Magazine, Volume 3 Issue 9 "Missing By a Fraction,” What's Next? Volume 3 "Odd Denominators,” What’s Next? Volume 2 Updated July 2009 Grade 5 Curriculum Map—page 31 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Measurement Students in grades 4 and 5 should be actively involved in measurement activities that require a dynamic interaction between students and their environment. Students can see the usefulness of measurement if classroom experiences focus on measuring objects and estimating measurements. Textbook experiences cannot substitute for activities that utilize measurement to answer questions about real problems. The approximate nature of measurement deserves repeated attention at this level. It is important to begin to establish some benchmarks by which to estimate or judge the size of objects. The intent is for students to make “ballpark” comparisons and not to memorize conversion factors between U.S. Customary and metric units. To fully understand these ballpark comparisons, students must be actively engaged in the process of measurement. Students use standard and nonstandard, age-appropriate tools to measure objects. Students also use age-appropriate language of mathematics to verbalize the measurements of length, weight/mass, liquid volume, area, temperature, and time. The focus of instruction should be an active exploration of the real world in order to apply concepts from the two systems of measurement (metric and U.S. Customary), to measure perimeter, weight/mass, liquid volume/capacity, area, temperature, and time. Students continue to enhance their understanding of measurement by using appropriate tools such as rulers, balances, clocks, and thermometers. The process of measuring is identical for any attribute (i.e., length, weight/mass, liquid volume/capacity, area): choose a unit, compare that unit to the object, and report the number of units . Updated July 2009 Grade 5 Curriculum Map—page 32 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Perimeter and Area PWC Grade Level Objective 5.8 5.8A The student will measure and find the perimeter of a polygon. 5.8B The student will describe and determine the area of a square, rectangle and right triangle given the appropriate measures. Virginia SOL 5.8 The student will describe and determine the perimeter of a polygon and the area of a square, rectangle, and right triangle, given the appropriate measures. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions All students should: Understand the concept of perimeter and What real-life situations use perimeter? …area? area. How are the areas of rectangles (including squares) and triangles related? Understand and use appropriate units of How can models be used to develop strategies/formulas for computing the perimeters and areas measure for perimeter and area. of squares, rectangles, and triangles? Understanding the Objective (Teacher Notes) Perimeter is the distance around the edge of a shape or closed figure. The perimeter of any straightsided shape can be found by adding the lengths of the sides. Area is the amount of space occupied by a two-dimensional shape. Area is typically measured by the number of square units needed to cover a surface or figure. Students should practice associating the words perimeter and area with real-life examples of the concepts. They should be actively involved in measuring perimeter and area in order to fully understand the concepts involved and the associated relationships between measures and units. Students should attach the appropriate unit of measure to the perimeter (e.g., centimeters, meters, inches, feet, yards, or units) and to the area (e.g., square centimeters, square inches, square feet, square yards, or square units). Area and perimeter (and their associated units of measurement) are often confused by students, particularly if they are taught how to calculate perimeter and area before they have developed conceptual clarity about each idea. Through investigating questions such as, Do figures with the same area have the same perimeter? and Will figures with the same perimeter have the same area?, students will observe interesting relationships among dimensions, perimeter, and area. (Corresponding relationships exist in three-dimensions in the measurement of volume.) Students should investigate, using manipulatives (e.g., paper folding, graph paper, geoboards) the physical relationships among rectangles, squares, and right triangles, in order to develop formulas for their areas. The area of rectangular regions serves as the foundation upon which formulas for areas of other geometric figures are based. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Determine the perimeter of polygons, with or without diagrams, when: The lengths of all sides of the polygons (excluding rectangles and squares) are given. The length and width of a rectangle are given. The length of a side of a square is given. Determine the area of a square, with or without diagrams, when the length of a side is given. Determine the area of a rectangle, with or without diagrams, when the length and width are given. Determine the area of a right triangle, with or without diagrams, when the base and the height are given. Determine the perimeter of a polygon and area of a square, rectangle, and triangle (following the parameters listed above), using only whole number measurements given in metric and U.S. Customary units, and record the solution with the appropriate unit of measure, e.g., 24 square inches. continued Updated July 2009 Grade 5 Curriculum Map—page 33 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Measurement and Geometry Concept Perimeter and Area PWC Grade Level Objective 5.8 5.8A The student will measure and find the perimeter of a polygon. 5.8B The student will describe and determine the area of a square, rectangle and right triangle given the appropriate measures. Virginia SOL 5.8 The student will describe and determine the perimeter of a polygon and the area of a square, rectangle, and right triangle, given the appropriate measures. Updated July 2009 Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Measurement Subject: 5.8 continued It is beneficial for students to associate the area representation of products in multiplication (rectangular arrays) with the concept of area. They will readily recognize: Area of a rectangle = length x width OR Area of a rectangle = base x height Using the formula A = base x height makes it easier to relate the formula for the area of a rectangle to the formula for area of a triangle, including those without right angles. Year: Revised 2009 Essential Understanding All students should: Understand the concept of perimeter and area. Understand and use appropriate units of measure for perimeter and area. The student will use problem solving, mathematical communication, mathematical Students should consider the relationship between squares and rectangles and the formulas for their reasoning, connections, and representation to: areas. Since a square is a rectangle with equal length and width, the rectangle formulas also apply. Determine the perimeter of polygons, with or without diagrams, when: Area of a square = side x side OR length x width OR base x height The lengths of all sides of the polygons (excluding rectangles and squares) are Working with right triangles, students may suggest the formula: given. The length and width of a rectangle are 1 1 given. Area of a right triangle = length x width OR base x height 2 2 The length of a side of a square is given. Determine the area of a square, with or Although PWC/SOL 5.8 does not require students to find the areas of non-right triangles, it is useful without diagrams, when the length of a side to have the students use paper models to explore briefly the reason for the more universal formula. is given. Determine the area of a rectangle, with or 1 without diagrams, when the length and Area of a triangle = base x height 2 width are given. For example, consider the obtuse triangle ABC: Determine the area of a right triangle, with or without diagrams, when the base and the B height are given. Determine the perimeter of a polygon and x y area of a square, rectangle, and triangle (following the parameters listed above), using only whole number measurements given in metric and U.S. Customary units, A C D and record the solution with the appropriate unit of measure, e.g., 24 square inches. Using grid paper or cut paper copies of the triangle, students can prove that the area of the triangle is one-half the area of the corresponding rectangle with base AC and its side or height, the length of the perpendicular line segment BD. 1 Thus the formula Area of a triangle = base x height applies to all triangles. 2 Grade 5 Curriculum Map—page 34 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Perimeter and Area PWC Grade Level Objective 5.8 Virginia SOL 5.8 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 5, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Can You Tell?” Floaters and Sinkers "Wreck-Tangles,” Hardhatting in a Geo-World "Paper Pinchers,” Hardhatting in a Geo-World "Playground Geometry,” Hardhatting in a Geo-World "The Chocolate Cake Challenge,” Historical Connections in Mathematics, Volume II Updated July 2009 Grade 5 Curriculum Map—page 35 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Circles PWC Grade Level Objective 5.9 5.9A The student will identify and describe the diameter, radius, chord, and circumference of a circle. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions How can models be used to derive definitions for the diameter, radius, chord, and circumference of a circle? How can models be used to demonstrate the relationships among the radius, diameter, and circumference of a circle? Understanding the Objective (Teacher Notes) A circle is a set of points on a flat surface (plane) that are the same distance (equidistant) from a given point called the center. The center is not part of the circle itself. A chord is a line segment connecting any two points on a circle. A diameter is a chord that goes through the center of a circle. 5.9B The student will describe the relationships among the radius, diameter, and circumference of a circle. A radius is a segment from the center of a circle to any point on the circle. Two radii end-to-end form a diameter of a circle. Thus, the diameter is twice the size of the radius, and the radius is half of the diameter. Virginia SOL 5.9 The student will identify and describe the diameter, radius, chord, and circumference of a circle. Circumference is the distance around (or perimeter) of a circle. Students should investigate to find the relationships among radius, diameter, and circumference. For example, using paper circles of various sizes, students can fold them to find chords, diameters, and radii; they can prove that a radius is half its corresponding diameter and contrast the characteristics of the diameter with non-diameter chords. By collecting and analyzing measurement data for each circle – radius, diameter, and approximate circumference – they can deduce that a circle’s circumference is always slightly longer than three times its diameter. This relationship is fundamental to the understanding of the mathematical constant, pi (π), and the formulas for circumference and area of circles and surface area and volume of spheres and solids with circular bases. Updated July 2009 Year: Revised 2009 Essential Understanding All students should: Identify the parts of a circle. Understand that the circumference is the distance around the circle. Understand the relationship between the measure of diameter and radius and the relationship between the measure of radius and circumference. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Describe the diameter, radius, chord, and circumference of a circle. Describe the relationship between diameter and radius. diameter and circumference. radius and circumference. Identify the diameter, radius, chord, and circumference of a given circle. Solve real-life problems involving the relationship between the radius and the diameter. Solve real-life problems involving the approximate relationship between the circumference and the diameter (i.e. the circumference is about 3 times the diameter). Grade 5 Curriculum Map—page 36 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Circles PWC Grade Level Objective 5.9 Virginia SOL 5.9 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Elementary and Middle School Mathematics by John Van deWalle The Super Source books – Tangrams Exploring Mathematics by Jean Shaw (Grades 4-6) Hands on Math by Bill Linderman Mathematics: A Way of Thinking by Robert Baratta-Lorton Tables, Charts, and Graphs by Milliken Math Creative Constructions, Grades 5 and Up by Seymour-Schadler About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Circle Sighs,” Hardhatting in a Geo-World "Playground Geometry,” Hardhatting in a Geo-World "Finding Pi,” Historical Connections in Mathematics, Volume II Updated July 2009 Grade 5 Curriculum Map—page 37 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Perimeter, Area and Volume PWC Grade Level Objective 5.10 Virginia SOL 5.10 The student will differentiate among perimeter, area, and volume and identify whether the application of the concept of perimeter, area, or volume is appropriate for a given situation. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions How are two dimensional and three dimensional figures related? How do these relationships help us differentiate the ideas of perimeter, area, and volume? What problem situations require us to find the perimeter? …the area? …the volume? Understanding the Objective (Teacher Notes) Perimeter is the distance around an object. It is a measure of length and is a measurement in onedimension and is measured in linear units: millimeter, centimeter, inch, foot, mile, etc. Year: Revised 2009 Essential Understanding All students should: Understand the concept of perimeter, area, and volume. Understand and use appropriate units of measure for perimeter, area, and volume. Understand the difference between using perimeter, area, and volume in a given situation. Area is the number of square units needed to cover a surface. Area is a measurement of the space occupied by two-dimensional shapes or regions. Area is measured in square units: square meters, square inches, square kilometers, etc. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Differentiate between the concepts of area, Volume is a measure of capacity. Volume and capacity both refer to measures of three-dimensional perimeter, and volume. regions but the specific terms are typically used in different contexts and with different units of Describe real life situations where area, measurement. Volume usually refers to the amount of space an object takes up. Volume is measured perimeter, and volume are appropriate in cubic units; e.g., cubic centimeters, cubic inches, cubic feet, etc. Units of volume are based on measures to use. linear measures. Capacity usually refers to the amount that a container will hold. Units of capacity Identify whether the application of the include milliliter, liter, cup, pint, quart, gallon, etc. In casual use, the terms volume and capacity are concept of perimeter, area or volume is often used interchangeably. It is interesting that, in the metric system, volume and capacity are appropriate for a given situation. related by the relationship: 1 milliliter(ml) of a substance occupies the space of 1 cubic centimeter (cc). In middle school, students will investigate the concept of surface area, the area required to cover the surface of a solid or three-dimensional shape. It is the sum of the areas of all the surfaces of the solid or three-dimensional shape or simply, the area of the net of the shape. Hands–on investigations with rectangular prisms created from nets of square centimeter (or square inch) grid paper may help students differentiate the concepts of perimeter, area, and volume. For example, they can count or measure the perimeter and count or calculate the areas of faces; they can assemble the nets and fill them with centimeter (or inch) cubes to find the volume. They can develop an awareness of the relationships among the linear dimensions, area, and volume that will help them transition to more formal work with volume in later grades. (Sometimes students are confused by the use of cubic units to describe the volume of irregular or curved shapes. They can use the concept of equal capacity to overcome this confusion.) Students should associate their hands-on experiences with real-life situations in which area, perimeter, and volume are appropriate. They should be able to justify their choices orally or in writing. Updated July 2009 Grade 5 Curriculum Map—page 38 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Perimeter, Area and Volume PWC Grade Level Objective 5.10 Virginia SOL 5.10 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 2 & 5, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Picturing Polygons, Containers and Cubes, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards Sizing Up Measurement, Grades 3 – 5 by Chris Confer About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Can You Tell?” Floaters and Sinkers "Wreck-Tangles,” Hardhatting in a Geo-World "Paper Pinchers,” Hardhatting in a Geo-World "Playground Geometry,” Hardhatting in a Geo-World "The Chocolate Cake Challenge,” Historical Connections in Mathematics, Volume II Updated July 2009 Grade 5 Curriculum Map—page 39 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Linear Measurement PWC Grade Level Objective 5.11 5.11A The student will choose an appropriate measuring device and unit of measure and solve linear measurement and area problems in real life situations. 5.11B The student will estimate and solve linear measurement problems to parts of an inch (1/2, 1/4, 1/8), inches, feet, yards, miles, millimeters, centimeters, meters, and kilometers. 5.11C The student will describe numerical relationships between units of measure within the same measurement system such as one inch is 1/12 of a foot. Virginia SOL 5.11 The student will choose an appropriate measuring device and unit of measure to solve problems involving measurement of Length - part of an inch (1/2, 1/4, and 1/8), inches, feet, yards, miles, millimeters, centimeters, meters, and kilometers Area - square units School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions Why are all measurements of length approximations? What tools are used in linear measurement? How does one determine which is appropriate to use? How does the selection of an appropriate unit of measurement and measurement tool affect the precision of the solution to problems involving linear measurement? All students should: Understand how to select a measuring device and unit of measure to solve problems involving measurement. Understand and use appropriate units of measure for area. Understanding the Objective (Teacher Notes) Measurement Background Information The process of measuring something consists of three main steps: First, select an attribute that can be measured; second, choose an appropriate unit of measurement; finally, determine the number of units, usually by using a measurement tool. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Solve problems involving measurement by selecting an appropriate measuring device and a U.S. Customary or metric unit of measure for: Length—part of an inch (1/2,1/4,1/8,), inches, feet, yards, miles, millimeters, centimeters, meters, and kilometers Area - square units Recognize equivalent linear measures in different units within the same system. In order for students to learn to use measurement concepts, tools, and units effectively, instruction must require students to solve problems by performing real measurements with various measurement tools. Estimation is a critical part of measurement. Estimating helps students internalize measurement concepts. Benchmarks can help students develop a working familiarity with various measurement units and their relationships. “Measurements” are different from “counts”. Counts provide discrete data and can be exact, but measurements provide continuous data (that is, each unit of measure can be repeatedly subdivided into smaller subunits.), and thus, all measurements are approximate. Precision and accuracy are different. The precision of measurement depends upon the size of the smallest measuring unit. Accuracy refers to how correctly a measurement has been made. The metric system was developed by the French Academy of Sciences in 1791 in order to provide an internationally accepted system of measurement for commerce and science. The metric system has evolved technically into the International System of Units (SI), with units defined in terms of scientific formulas and natural constants. The metric system defines standard units for length, mass, temperature, area, and volume. Larger and smaller units are obtained by multiplying or dividing the standard units by powers of ten. The principles of our base ten numeration system are utilized in the relationships among metric units. Linear Measurement Length is the distance along a line or figure from one point to another. The term length can be used inclusively to represent any linear measure (height, width, thickness, perimeter, etc.), or it can denote one specific dimension of length (as in length versus width). This ambiguity may create some confusion, particularly for ELL students. continued Updated July 2009 Grade 5 Curriculum Map—page 40 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Linear Measurement PWC Grade Level Objective 5.11 5.11A The student will choose an appropriate measuring device and unit of measure and solve linear measurement and area problems in real life situations. 5.11B The student will estimate and solve linear measurement problems to parts of an inch (1/2, 1/4, 1/8), inches, feet, yards, miles, millimeters, centimeters, meters, and kilometers. Subject: Fifth Grade Mathematics Year: Revised 2009 Essential Understanding 5.11 ABC continued All students should: Understand how to select a measuring U.S. Customary units include inches, feet, yards and miles. Appropriate measuring devices include device and unit of measure to solve customary rulers and yardsticks. When measuring with U.S. Customary units, students should be able problems involving measurement. to measure to the nearest part of an inch (1/2, 1/4, 1/8), foot, yard, or mile. They should also Understand and use appropriate units of recognize equivalent linear measures within the Customary system. Students should be able to measure for area. convert between inches, feet, yards and miles. The student will use problem solving, Metric units include millimeters, centimeters, meters and kilometers. Appropriate measuring devices mathematical communication, mathematical include centimeter rulers and meter sticks. They should also recognize equivalent linear measures reasoning, connections, and representation within the Metric system, and be able to convert between millimeters, centimeters, meters, and to: kilometers. Solve problems involving measurement by selecting an appropriate measuring device Today’s students have fewer measurement experiences in the home than did many of their parents. and a U.S. Customary or metric unit of Practical experiences measuring the length of familiar objects and applying linear measurement in measure for: school projects and scientific investigations will help students understand the effects of the selection Length—part of an inch (1/2,1/4,1/8,), of measurement units and measurement tools on precision as well as facilitate their ability to measure inches, feet, yards, miles, millimeters, accurately, establish benchmarks, and estimate length. centimeters, meters, and kilometers Area - square units Area is the number of square units needed to cover a surface or figure. Students should understand Recognize equivalent linear measures in the relationship between linear dimension and the calculation of area. different units within the same system. 5.11C The student will describe numerical relationships between units of measure within the same measurement system such as one inch is 1/12 of a foot. Virginia SOL 5.11 The student will choose an appropriate measuring device and unit of measure to solve problems involving measurement of Length - part of an inch (1/2, 1/4, and 1/8), inches, feet, yards, miles, millimeters, centimeters, meters, and kilometers Area - square units Updated July 2009 Grade 5 Curriculum Map—page 41 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Linear Measurement PWC Grade Level Objective 5.11 Virginia SOL 5.11 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 5 & 8, Pearson (area) PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards Exploring Mathematics by Jean Shaw Hands on Math by Bill Linderman About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Inside Out,” Critters "Growing Pains,” Critters "How Do You Measure Up?” From Head to Toe Primarily Bears: "Guessing Jars," " Area Forms on Geo boards," 10/88; "Area Sand Perimeter on Geo boards," 9/88, "Paper Penny Boxes," 1/92, "Paper Pinchers," 7-8/94. Updated July 2009 Grade 5 Curriculum Map—page 42 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Mass / Weight School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions Why are all measurements of weight and mass approximations? What tools are used to measure weight and mass? How does one determine which is appropriate to use? How does the selection of an appropriate unit of measurement and measurement tool affect the precision of the solution to problems involving measurement of weight and mass? Understanding the Objective (Teacher Notes) PWC Grade Level Objective 5.11 Please refer to the Measurement Background Information provided in Objective 5.11 A & B. 5.11D The student will choose an appropriate measuring device and unit of measure to solve Measurement of Weight and Mass weight and mass problems in real life situations. Weight and mass are different, although in casual use, the terms are often used interchangeably. Mass is the amount of matter in an object. Weight is determined by the pull of gravity on the mass 5.11E The student will estimate and solve of an object. The mass of an object remains the same regardless of its location. The weight of an weight and mass problems to include ounces, object changes depending on the gravitational pull at its location. In everyday life, most people are pounds, tons, grams, and kilograms. actually interested in determining an object’s mass, although they use the term weight e.g., “How much does it weigh?” versus “What is its mass?” 5.11F The student will describe numerical relationships between units of measure within U.S. Customary units used in the measurement of weight and mass are ounces, pounds, and tons. the same measurement system such as an Metric units for weight and mass are grams and kilograms. ounce is 1/16 of a pound. Balances are the appropriate scientific tools to measure mass. Counter-weight scales (such as those Virginia SOL 5.11 used in doctors’ offices) operate on the principle of the balance. Spring scales (like those in the The student will choose an appropriate produce section of the grocery store) actually measure weight, since they depend upon the pull of measuring device and unit of measure to solve gravity. problems involving measurement of weight and mass – ounces, pounds, tons, Students should be able to convert between ounces, pounds, and tons, and between grams and grams, and kilograms kilograms. Year: Revised 2009 Essential Understanding All students should: Understand how to select a measuring device and unit of measure to solve problems involving measurement. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Solve problems involving measurement by selecting an appropriate measuring device and a U.S. Customary or metric unit of measure for: Weight - ounces, pounds, and tons Mass - grams and kilograms Recognize equivalent measures of weight given in different units within the same system. Today’s students have fewer measurement experiences in the home than did many of their parents. Practical experiences measuring the mass/weight of familiar objects and in school projects and scientific investigations will help students understand the effects of the selection of measurement units and measurement tools on precision as well as facilitate their ability to measure accurately, establish benchmarks, and estimate weight/mass. Updated July 2009 Grade 5 Curriculum Map—page 43 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Mass/Weight PWC Grade Level Objective 5.11 School: _____________________________ Subject: Resources Virginia SOL 5.11 Fifth Grade Mathematics Year: Revised 2009 Teacher Notes PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Icebergs,” Down to Earth "By Golly, By Gum,” Jaw Breakers and Heart Thumpers Primarily Bears: "Guessing Jars," " Area Forms on Geo boards," 10/88; "Area Sand Perimeter on Geo boards," 9/88, "Paper Penny Boxes," 1/92, "Paper Pinchers," 7-8/94. Updated July 2009 Grade 5 Curriculum Map—page 44 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions All students should: Why are all measurements of liquid volume and capacity approximations? Understand how to select a measuring What tools are used to measure liquid volume and capacity? How does one determine which is device and unit of measure to solve appropriate to use? problems involving measurement. SOL Reporting Category How does the selection of an appropriate unit of measurement and measurement tool affect the Measurement and Geometry Recognize equivalent measures of capacity precision of the solution to problems involving measurement of liquid volume and capacity? given in different units within the same system. Concept Understanding the Objective (Teacher Notes) Measurement of Capacity and Liquid Volume The student will use problem solving, Please refer to the Measurement Background Information provided in Objective 5.11 A & B. mathematical communication, mathematical PWC Grade Level Objective 5.11 reasoning, connections, and representation to: 5.11 G The student will choose an appropriate Solve problems involving measurement by Liquid volume is a measure of capacity. Capacity is the amount something can hold. The U.S. measuring device and unit of measure to solve customary units of liquid volume include the following: cup (C), pint (pt.), quart (qt.), and gallon selecting an appropriate measuring device capacity and liquid volume problems in real and a U.S Customary or metric unit of (gal.). The metric units of liquid volume include the following: milliliter (ml) and liter (l). life situations. measure for: Liquid volume-cups, pints, quarts, Tools to measure liquid volume include measuring cups and containers of specific capacities (e.g., 5.11 H The student will estimate and solve gallons, millimeters, and liters pint, quart, gallon), beakers, and graduated cylinders. A general rule of thumb is that a narrower, capacity and liquid volume problems to taller container gives more precision than a wider, shorter container. This is why the graduated include cups, pints, quarts, gallons, milliliters, cylinder or syringe is used in scientific work. and liters. PWC Curriculum Strand Measurement 5.11 I The student will describe numerical relationships between units of measure within the same measurement system such as a cup is 1/4th of a quart. Virginia SOL 5.11 The student will choose an appropriate measuring device and unit of measure to solve problems involving measurement of liquid volume – cups, pints, quarts, gallons, milliliters, and liters Updated July 2009 Today’s students have fewer measurement experiences in the home than did many of their parents. Students should have experiences measuring liquid volume of everyday objects, using metric and U.S. Customary units, including cups, pints, quarts, gallons, milliliters, and liters, and record the liquid volume using the appropriate unit of measure, e.g., 24 gallons. Students should be able to convert from one unit to another within each system. Practicing measurement as part of school projects and scientific investigations will help students understand the effects of the selection of measurement units and measurement tools on precision as well as facilitate their ability to measure accurately, establish benchmarks, and estimate liquid volume/capacity. Grade 5 Curriculum Map—page 45 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Capacity and Liquid Volume PWC Grade Level Objective 5.11 Virginia SOL 5.11 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman Navigating through Measurement in Grades 3-5, NCTM The Super Source books – Pattern Blocks, Tangrams and Geoboards Exploring Mathematics by Jean Shaw Real World Math by Edupress Hands on Math by Bill Linderman About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Metric Mania,” Historical Connections in Mathematics, Volume III "Can You Tell?” Floaters and Sinkers Primarily Bears: "Guessing Jars," " Area Forms on Geo boards," 10/88; "Area Sand Perimeter on Geo boards," 9/88, "Paper Penny Boxes," 1/92, "Paper Pinchers," 7-8/94. Updated July 2009 Grade 5 Curriculum Map—page 46 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Temperature PWC Grade Level Objective 5.11 5.11 J The student will choose an appropriate measuring device and unit of measure to solve problems involving measurement of temperature in Celsius and Fahrenheit. 5.11 K The student will estimate the conversion of temperature in Celsius units to Fahrenheit units and vise versa, relative to familiar situations. (Water freezes at 0ºC and 32ºF, water boils at 100ºC and 212ºF, normal body temperature is about 37ºC and 98.6ºF). School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions Why are all temperature measurements approximations? What tools are used to measure temperature? How does one determine which is appropriate to use? What is the relationship between Celsius and Fahrenheit units? What are some benchmark temperature measurements in Celsius and Fahrenheit? How does the selection of appropriate measurement tool and temperature scale affect the precision of the solution to problems involving measurement of temperature? Understanding the Objective (Teacher Notes) A thermometer is a tool used to measure temperature. A scale marked in degrees Fahrenheit or degrees Celsius indicates temperature. The U.S. Customary unit of measurement is degree Fahrenheit (°F); the metric unit of measurement is degree Celsius (°C). Students should measure temperature in a variety of situations, using various types of thermometers in each scale. Reading temperatures using both a Fahrenheit thermometer and a Celsius thermometer at the same time reinforces the concept that measurements given in Celsius and Fahrenheit are two different representations for the same temperature. Making sense of temperature measurements in Celsius and Fahrenheit is an essential life skill, requiring reasonable estimates of what the measurements mean in each scale. When students internalize benchmark Celsius and Fahrenheit temperatures relative to familiar situations, they can Virginia SOL 5.11 use them to estimate the conversion of Celsius and Fahrenheit units: The student will choose an appropriate Water freezes at 0oC and 32oF measuring device and unit of measure to solve Water boils at 100oC and 212oF problems involving measurement of Normal body temperature is about 37oC and 98.6oF Temperature - Celsius and Fahrenheit Average room temperature is about 20° C and 68° F. units. Problems also will include estimating the Students should be able to look at the range of the temperature scale on a given thermometer and conversion of Celsius and Fahrenheit units assess whether it is an appropriate tool for a specific task. (For example, a thermometer designed for relative to familiar situations (water freezes at weather measurement will not have the range necessary to measure cooking temperatures.) 0C and 32F, water boils at 100C and at 212F, normal body temperature is about 37C and 98.6F). Updated July 2009 Year: Revised 2009 Essential Understanding All students should: Understand how to select a measuring device and unit of measure to solve problems involving measurement. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Solve problems involving measurement by selecting an appropriate measuring device and a U.S. Customary or metric unit of measure for temperature: Celsius and Fahrenheit units. Estimate the conversion of Celsius and Fahrenheit units relative to familiar situations: Water freezes at 0oC and 32oF Water boils at 100oC and 212oF Normal body temperature is about 37oC and 98.6oF Grade 5 Curriculum Map—page 47 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Temperature Updated July 2009 Subject: Resources PWC Grade Level Objective 5.11 Virginia SOL 5.11 School: _____________________________ Fifth Grade Mathematics Year: Revised 2009 Teacher Notes PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "White Rain,” Our Wonderful World "When You're Hot, You're Hot,” Down to Earth "Temp-Rate,” Down to Earth "Salty Change,” Down to Earth "Cool It,” Math + Science: A Solution "Hot Stuff,” Math + Science: A Solution Grade 5 Curriculum Map—page 48 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions What is meant by elapsed time? How can elapsed time be determined in hours and minutes within a 24-hour period? In what everyday situations do we determine elapsed time? Year: Revised 2009 Essential Understanding All students should: Understand the “counting on” strategy for determining elapsed time in hours and minutes. Understanding the Objective (Teacher Notes) Concept Measurement of Time PWC Grade Level Objective 5.12 Virginia SOL 5.12 The student will determine an amount of elapsed time in hours and minutes within a 24-hour period. Time can be thought of as the duration of an event. Elapsed time is the amount of time that has passed between two given events. Measuring elapsed time in hours and minutes in a 24-hour period requires knowledge of the relationship of minutes to hours and the process of changing minutes greater than 60 to hours and minutes. Elapsed time can be found by counting on from the beginning time to the finishing time. Using or visualizing a clock face may help students apply this strategy. Count the number of whole hours between the beginning time and the finishing time. Count the remaining minutes. Add the hours and minutes. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Determine elapsed time in hours and minutes within a 24-hour period. Investigate everyday applications of elapsed time in a 24- hour period, such as, hours and minutes spent in school for a day. For example, to find the elapsed time between 10:15 a.m. and 1:25 p.m., count on as follows: from 10:15 a.m. to 1:15 p.m., count 3 hours; from 1:15 p.m. to 1:25 p.m., count 10 minutes; and then add 3 hours to 10 minutes to find the total elapsed time of 3 hours and 10 minutes. Updated July 2009 Grade 5 Curriculum Map—page 49 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Measurement SOL Reporting Category Measurement and Geometry Concept Measurement of Time PWC Grade Level Objective 5.12 Virginia SOL 5.12 Updated July 2009 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Measurement Benchmarks, Scott Foresman The Super Source books – Pattern Blocks, Tangrams and Geoboards AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Around the Clock,” AIMS Magazine, Volume 8 Issue 3 "Singing Bears,” Popping with Power Grade 5 Curriculum Map—page 50 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Geometry The study of geometry helps students represent and make sense of the world. At the fourth- and fifth-grade levels, reasoning skills typically grow rapidly, and these skills enable students to investigate geometric problems of increasing complexity and to study how geometric terms relate to geometric properties. Students develop knowledge about how geometric shapes relate to each other and begin to use mathematical reasoning to analyze and justify properties and relationships among shapes. Students discover these relationships by constructing, drawing, measuring, comparing, and classifying geometric shapes. Investigations should include explorations with everyday objects and other physical materials. Exercises that ask students to visualize, draw, and compare shapes will help them not only to develop an understanding of the relationships, but to develop their spatial sense as well. Discussing ideas, conjecturing, and testing hypotheses precede the development of more formal summary statements. In the process, definitions become meaningful, relationships among figures are understood, and students are prepared to use these ideas to develop informal arguments. Students investigate, identify, and draw representations and describe the relationships between and among points, lines, line segments, rays, and angles. Students apply generalizations about lines, angles, and triangles to develop understanding about congruence, other lines such as parallel and perpendicular ones, and classifications of triangles. Students also explore coordinate geometry, using the coordinate plane to describe points in the first quadrant. The van Hiele theory of geometric understanding describes how students learn geometry and provides a framework for structuring student experiences that should lead to conceptual growth and understanding. Level 0: Pre-recognition. Geometric figures are not recognized. For example, students cannot differentiate between threesided and four-sided polygons. Level 1: Visualization. Geometric figures are recognized as entities, without any awareness of parts of figures or relationships between components of a figure. Students should recognize and name figures and distinguish a given figure from others that look somewhat the same. (This is the expected level of student performance during grades K and 1.) Level 2: Analysis. Properties are perceived but are isolated and unrelated. Students should recognize and name properties of geometric figures. (Students are expected to transition to this level during grades 2 and 3.) Level 3: Abstraction. Definitions are meaningful, with relationships being perceived between properties and between figures. Logical implications and class inclusions are understood, but the role and significance of deduction is not understood. (Students should transition to this level during grades 5 and 6 and fully attain it before taking Algebra.) Updated July 2009 Grade 5 Curriculum Map—page 51 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Angles and Triangles PWC Grade Level Objective 5.13 Virginia SOL 5.13 The student will measure and draw right, acute, and obtuse angles and triangles using appropriate tools. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How does angle measurement differ from linear measurement? How can visualizing a circle divided into wedges help us think about angle measurement? How is a protractor or an angle ruler used to measure and construct angles and triangles? All students should: Understand how to measure and draw acute, right, and obtuse angles. Understanding the Objective (Teacher Notes) The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify the appropriate tools, e.g., protractor and straightedge or angle ruler, as well as available computer software, used to measure and draw angles and triangles. Draw right, acute, and obtuse angles, using appropriate tools. Measure right, acute, and obtuse angles with a protractor or angle ruler and identify their measure in degrees. Measure the angles of right, acute, and obtuse triangles with a protractor or angle ruler and identify their measure in degrees. The word angle comes from the Latin word angulus, meaning "a corner". Angles are formed by two rays with a common endpoint, called the vertex. It is helpful to think of an angle as a rotation (turn) around a vertex; the size of the angle is a measure of how far one ray is turned from the other ray (or in geometric figures, how far one side is turned from the other side). Angles are typically measured in degrees*. A degree is 1/360 of a complete rotation. The division of one complete rotation (a circle) into 360 degrees can be traced back to the ancient Babylonians and was probably based on ancient calendars which used 360 as the number of days in a year. Another reason for choosing the number 360 may be that it is readily divisible; 360 has 24 divisors (factors). Students need to understand the attribute of angle measure as a measure of rotation. A common confusion among students is to think that angle measurement is linear and determined by the length of the rays or of the “spread” between the rays. In geometry, the concept of similarity requires students to understand that corresponding angle measurements in two polygons may be equal despite the fact that the corresponding sides may differ in size. Angles may be measured using a tool marked in degrees. Protractors and angle rulers are tools used to measure and construct angles. A protractor is a circular or semicircular tool usually ruled into units of measurement – degrees – based on the division of one complete rotation into 360°. Protractors have existed since ancient times. Most angle rulers are devices with two arms which pivot around a point in the center of a 360° (circular) protractor. The arms of most angle rulers are also marked in linear measurements (inches and centimeters), thus allowing the student to measure and construct polygons with specific side lengths, as well as measure and construct angles. There are many types of protractors and angle rulers. A right angle is an angle that forms a square corner. A right angle measures exactly 90. Before measuring an angle, students should first compare it to a right angle to decide if the measure of the angle is less than or greater than 90°. Recognizing immediately whether an angle’s measure is greater or less than 90° is critical to selecting the correct scale (inner or outer) on the protractor. continued Updated July 2009 Grade 5 Curriculum Map—page 52 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Measurement and Geometry Concept Angles and Triangles PWC Grade Level Objective 5.13 Virginia SOL 5.13 The student will measure and draw right, acute, and obtuse angles and triangles using appropriate tools. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Geometry Subject: 5.13 continued Students should be able to estimate an angle’s measure by comparing it to known landmarks. Knowing that a right angle measures 90 degrees and a straight angle, 180 degrees, students can use these angles as landmarks to find angles of 30, 45, and 60, 120 and 150 degrees and estimate others in between these measures. Using fraction circle manipulatives or graphics to represent angles of different magnitudes helps students visualize and internalize the concept of 360 degrees as one full rotation and estimate the measure of angles. For example, in a circle divided into fourths, each wedge represents an angle of 90°; in a circle divided into sixths, each wedge represents an angle of 60°; in a circle divided into twelfths, each wedge represents and angle of 30°. Experience with Turtle graphics in the Logo computer language (or one of its variants) provides functional practice with angle measure and enables students to internalize angle benchmarks/landmarks. Students should understand how to work with a protractor or angle ruler, as well as available computer software, to measure and draw angles and triangles. *Note: It is interesting to note that the degree is not the only unit of measure for angles. The radian is often the preferred unit of angle measure in higher mathematics; the angular mil and its variants are used in military applications. Computer games require very fast computations to depict a threedimensional virtual world; thus, in these situations, a binary 256 degree system is often used, and the unit of angle measure is the brad or binary radian. When the degree, as a unit of angle measure, does not provide sufficient precision, as in astronomy and navigation (latitude and longitude on Earth), the degree is subdivided into 60 minutes of arc, and the minute into 60 seconds of arc. Updated July 2009 Year: Revised 2009 Essential Understanding All students should: Understand how to measure and draw acute, right, and obtuse angles. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify the appropriate tools, e.g., protractor and straightedge or angle ruler, as well as available computer software, used to measure and draw angles and triangles. Draw right, acute, and obtuse angles, using appropriate tools. Measure right, acute, and obtuse angles with a protractor or angle ruler and identify their measure in degrees. Measure the angles of right, acute, and obtuse triangles with a protractor or angle ruler and identify their measure in degrees. Grade 5 Curriculum Map—page 53 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Angles and Triangles Subject: Resources PWC Grade Level Objective 5.13 Virginia SOL 5.13 School: _____________________________ Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 5, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Investigations in Number, Data, and Space (2004)- Picturing Polygons, Scott Foresman The Super Source books – Cuisenaire Rods, Color Tiles, Pattern Blocks and Geoboards Elementary and Middle School Mathematics by John Van deWalle The Super Source books – Cuisenaire Rods and Geoboards Hands on Math by Bill Linderman Mathematics: A Way of Thinking by Robert Baratta-Lorton About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 54 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Angles and Triangles PWC Grade Level Objective 5.14 Virginia SOL 5.14 The student will classify angles and triangles as right, acute, or obtuse. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How is the size of an angle related to rotation? How are angle properties used to classify angles? How are angle properties used to classify triangles? How do line relationships affect angle relationships in triangles? All students should: Understand how to identify angles as right, acute, and obtuse. Understand how to classify angles as right, acute, and obtuse. Understand how to identify a triangle as Understanding the Objective (Teacher Notes) either acute, right, or obtuse. Understand that triangles can be classified Angles are formed by two rays with a common endpoint, called the vertex. Angles occur where lines by the size of their angles. and/or line segments intersect. The symbol is used to indicate an angle. An angle is a rotation (turn) around a point, and the size of the angle is a measure of how far one ray The student will use problem solving, is turned from the other ray (or in geometric figures, how far one side is turned from the other side). mathematical communication, mathematical Angles are measured in degrees. A degree is 1/360 of a complete rotation. reasoning, connections, and representation to: Identify angles as right, acute, and obtuse. Angles are classified according to their measures as right, acute, obtuse, or straight angles. A right Classify angles as right, acute, and obtuse. angle is an angle that forms a square corner. A right angle measures exactly 90°. An acute angle Identify triangles as right, acute, and obtuse. forms an angle less than a right angle. An acute angle measures greater than 0° and less than 90°. Classify triangles as right, acute, and obtuse. An obtuse angle forms an angle greater than a right angle. An obtuse angle measures greater than 90° and less than 180° (a straight angle). Geometric figures are identified and classified by their attributes, and many figures can be classified in more than one way. Triangles are typically classified in one of two ways: according to the measure of their angles or according to the measure of their sides. Triangles are classified as right, acute or obtuse according to the size of their angles. A right triangle has one right angle and two acute angles. An obtuse triangle has one obtuse angle and two acute angles. An acute triangle has three acute angles. Students should investigate the relationships between sides and angles in triangles using geoboards, paper strips, drawings, etc. They should be able to answer questions such as the following: Can a right triangle have an obtuse angle? Why or why not? Can an obtuse triangle have more than one obtuse angle? Why or why not? What type of angles are the two angles other than the right angle in a right triangle? What type of angles are the two angles other than the obtuse angle in an obtuse triangle? Triangles are classified as equilateral, scalene, or isosceles according to the length of their sides. An equilateral triangle has three equal sides (all sides congruent). In a scalene triangle the three sides are three different lengths (no sides congruent). An isosceles triangle has at least two equal (congruent) sides. Updated July 2009 Grade 5 Curriculum Map—page 55 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Angles and Triangles PWC Grade Level Objective 5.14 Virginia SOL 5.14 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 5, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004) – Picturing Polygons, Scott Foresman The Super Source books – Geoboards Hands on Math by Bill Linderman Creative Constructions, Grades 5 and Up by Seymour-Schadler Exploring Mathematics by Jean Shaw (G 4-6) Hands on Math by Bill Linderman Computer Software: Geometric Concepts Mathematics: A Way of Thinking by Robert Baratta-Lorton Creative Constructions, Grades 5 and Up by Seymour-Schadler About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 56 MAPPING FOR INSTRUCTION Teacher: _____________________________ SOL Reporting Category Measurement and Geometry Concept Plane Figures PWC Grade Level Objective 5.15 Virginia SOL 5.15 5.15A The student will recognize, identify, describe, and analyze the properties of twodimensional (plane) figures (square, rectangle, triangle, parallelogram, rhombus, kite, and trapezoid) in order to develop definitions of these figures. 5.15B The student will identify and explore congruent, non-congruent, and similar figures. 5.15C The student will investigate and describe the results of combining and subdividing shapes. 5.15D The student will identify and describe a line of symmetry. 5.15E The student will recognize the images of figures resulting from geometric transformations such as translations (slides), reflections (flips), or rotations (turns). Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Geometry School: _____________________________ Year: Revised 2009 Essential Understanding Essential Questions How can relationships among angles and sides be used to distinguish and define twodimensional figures? How do relationships among angles and sides determine congruent, non-congruent, and similar figures? How can we predict and explain the results of combining and dividing shapes into other shapes? What are regular polygons? What are the characteristics of a line of symmetry in a two-dimensional shape? How do lines of symmetry relate to regular polygons? How does geometric transformation (translation, reflection, or rotation) represent the movement of an object or figure? Understanding the Objective (Teacher Notes) A polygon is a two-dimensional (plane) closed geometric figure, which has straight (line segment) sides. A polygon is equiangular if its interior angles are congruent (having exactly the same size and shape); it is equilateral if all of its sides are congruent. A polygon is regular if its sides are congruent and its interior angles are congruent. A line of symmetry of a regular polygon divides the figure into two congruent halves that are mirror images of each other. A triangle is a polygon with three sides. Triangles may be classified according to the measure of the angles: right, acute, or obtuse. Triangles may also be classified according to the measure of the sides: scalene (no sides congruent), isosceles (at least two sides congruent) and equilateral (all sides congruent). A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel. Properties of a parallelogram include: A diagonal (a segment that connects two vertices but is not a side of the polygon) divides the parallelogram into two congruent triangles. The opposite sides of a parallelogram are congruent. The opposite angles of a parallelogram are congruent. The diagonals of a parallelogram bisect each other. A rectangle is a parallelogram with four right angles. Since a rectangle is a parallelogram, the rectangle has the same properties of a parallelogram. A square is a rectangle with four congruent sides. Since a square is a rectangle, the square has all the properties of the rectangle and the parallelogram. A rhombus is a parallelogram with four congruent sides. Opposite angles of a rhombus are congruent. Since a rhombus is a parallelogram, the rhombus has all the properties of a parallelogram. All students should: Understand that plane figures are unique in their defining properties and symmetry. Understand that simple plane figures can be combined to make more complicated figures and that complicated figures can be subdivided into simple plane figures. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Recognize and identify the properties of squares, rectangles, triangles, parallelograms, rhombi, kites and trapezoids. Describe the properties of squares, rectangles, triangles, parallelograms, rhombi, kites and trapezoids. Analyze the properties of squares, rectangles, triangles, parallelograms, rhombi, kites and trapezoids. Identify congruent, non-congruent, and similar figures. Describe the results of combining and subdividing shapes. Identify and describe a line of symmetry. Recognize the image of figures resulting from geometric transformations such as translations, reflections, or rotations. continued Updated July 2009 Grade 5 Curriculum Map—page 57 MAPPING FOR INSTRUCTION Teacher: _____________________________ SOL Reporting Category Measurement and Geometry PWC Grade Level Objective 5.15 Virginia SOL 5.15 5.15A The student will recognize, identify, describe, and analyze the properties of twodimensional (plane) figures (square, rectangle, triangle, parallelogram, rhombus, kite, and trapezoid) in order to develop definitions of these figures. 5.15B The student will identify and explore congruent, non-congruent, and similar figures. 5.15C The student will investigate and describe the results of combining and subdividing shapes. 5.15D The student will identify and describe a line of symmetry. 5.15E The student will recognize the images of figures resulting from geometric transformations such as translations (slides), reflections (flips), or rotations (turns). Fifth Grade Mathematics 5.15 continued A trapezoid is a quadrilateral with exactly one pair of parallel sides. The parallel sides are called bases and the non-parallel sides are called legs. If the legs have the same length then the trapezoid is an isosceles trapezoid. Concept Plane Figures Subject: Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Geometry School: _____________________________ A kite is a quadrilateral with two distinct pairs of adjacent congruent sides. Year: Revised 2009 Essential Understanding All students should: Understand that plane figures are unique in their defining properties and symmetry. Understand that simple plane figures can be combined to make more complicated figures and that complicated figures can be subdivided into simple plane figures. A line of symmetry is a line that divides a figure into congruent halves, each of which is the reflection image of the other. Figures and pictures can possess more than one line of symmetry. It is important for teachers to recognize that line symmetry is not the only type of symmetry. Although students in Virginia do not study rotational symmetry in mathematics until middle school, they may encounter it in art class, and some students may intuitively recognize it in a figure such as the parallelogram below. It would be important to note that such a figure does not have line symmetry, but we would be incorrect, and possibly creating a misconception, if we stated that it is not symmetrical. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Recognize and identify the properties of squares, rectangles, triangles, parallelograms, rhombi, kites and trapezoids. Describe the properties of squares, In geometry, a transformation can change the position, size, or shape of a figure. The original figure rectangles, triangles, parallelograms, is called the “object’ and the result is the “image.” The geometric transformations studied in rhombi, kites and trapezoids. elementary school involve change in position. A translation (slide) is a transformation in which an Analyze the properties of squares, image is formed by moving every point on a figure the same distance in the same direction. A rectangles, triangles, parallelograms, reflection (flip) is a transformation in which a figure is flipped over a line called the line of reflection. rhombi, kites and trapezoids. All corresponding points in the image and pre-image are equidistant from the line of reflection. A Identify congruent, non-congruent, and rotation (turn) is a transformation in which the image is formed by turning its pre-image about a similar figures. point. Describe the results of combining and subdividing shapes. Figures are said to be congruent if they have exactly the same size and shape; that is, their Identify and describe a line of symmetry. corresponding angles and sides have the same measures. Change in position (translation, rotation, or Recognize the image of figures resulting reflection) does not alter the congruence of figures. from geometric transformations such as translations, reflections, or rotations. Figures are said to be similar if they have exactly the same shape, but not necessarily the same size; that is, their corresponding angles must be congruent, but their corresponding sides must only be proportional. Two or more figures can be combined to form a new shape. Students should be able to identify the figures that have been combined. Likewise, a polygon may be subdivided into two or more figures. Students should understand how to divide a polygon into familiar figures. The Van Hiele theory of geometric understanding (see Geometry strand introduction) describes how students learn geometry and provides a framework for structuring student experiences that should lead to conceptual growth and understanding. Updated July 2009 Grade 5 Curriculum Map—page 58 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Plane Figures PWC Grade Level Objective 5.15 Virginia SOL 5.15 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 5 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Geometry in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)- Picturing Polygons, Scott Foresman The Super Source books – Cuisenaire Rods, Color Tiles, Pattern Blocks and Geoboards Pieces and Patterns, AIMS, Available through county library About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Back Talk [geometric shapes], AIMS Magazine, Volume 10 Issue 9 “Phone Home,” Out of This World “Slice Me Twice,” Hardhatting in a Geo-World Updated July 2009 Grade 5 Curriculum Map—page 59 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Three-Dimensional Figures PWC Grade Level Objective 5.16 Virginia SOL 5.16 The student will identify, compare, and analyze properties of three-dimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions What are three-dimensional shapes? What is a face? an edge? a vertex? What is a rectangular prism? How can the properties of geometric figures be used to define and classify them? How do the properties of “related” two-dimensional (plane) and three-dimensional (solid) figures compare (e.g., circle-sphere, square-cube, rectangle-rectangular prism)? Understanding the Objective (Teacher Notes) Three-dimensional shapes are solid figures, or simply solids. Solids enclose a region of space. Solids are classified by the types of surfaces they have. These surfaces may be flat, curved, or both. A sphere is a solid with all of the points on its surface the same distance from the center. A cylinder is a solid bounded by two congruent and parallel circular regions joined by a curved surface whose cross-section perpendicular to the axis is always a circle congruent to the bases. A cone is a solid bounded by a circular base and a curved surface with one vertex. A solid bounded by polygons is known as a polyhedron. A prism is a polyhedron for which the top and bottom faces (known as the bases) are congruent polygons, and all other faces (known as the lateral faces) are parallelograms. Technically, when the lateral faces are rectangles, the shape is known as a right prism, because the lateral faces meet the sides of the base at right angles. The prism definitions used in the 5th Grade SOL are actually definitions for specific right prisms. A prism is described by the shape of its base. For instance, a rectangular prism has bases that are rectangles, a triangular prism has bases that are triangles, and a pentagonal prism has bases that are pentagons. All students should: Understand that solid figures are unique in their defining properties. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify properties of three-dimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). Analyze and compare properties of threedimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). Visualize, describe, and make models of rectangular prisms in the terms of the number and shape of faces, edges, and vertices. Interpret two-dimensional representations of three-dimensional objects (rectangular prisms) and draw patterns of faces for a solid that, when cut and folded, will make a model of the solid. Given a pictorial representation of a model, identify the number of faces, vertices, and edges. A rectangular solid or rectangular prism is a three-dimensional figure in which all six faces are rectangles with three pairs of parallel, congruent opposite faces. A rectangular prism in which all the faces are congruent squares is a cube. A cube is a solid with six congruent square faces. A cube has 6 faces and 12 edges; every edge is the same length. Since a square is an equilateral rectangle, a cube is a special instance of a rectangular prism. continued Updated July 2009 Grade 5 Curriculum Map—page 60 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Measurement and Geometry Concept Three-Dimensional Figures PWC Grade Level Objective 5.16 Virginia SOL 5.16 The student will identify, compare, and analyze properties of three-dimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). Updated July 2009 Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Geometry Subject: 5.16 continued A pyramid is a polyhedron formed by connecting a polygonal base and a point not in the plane, called the apex. Each base edge and apex forms a triangle. A pyramid is described by the shape of its base. For instance, a triangular pyramid has a base which is a triangle, a pentagonal prism has a base that is a pentagon, and a square pyramid has a base that is a square. A square pyramid is a polyhedron whose base is a square and whose other faces are triangles that share a common vertex. By handling solid figures and/or assembling polyhedra from their nets, students are able to apply the vocabulary of geometry to describe, compare and contrast three dimensional figures. The Van Hiele theory of geometric understanding (see Geometry strand introduction) describes how students learn geometry and provides a framework for structuring student experiences that should lead to conceptual growth and understanding. Year: Revised 2009 Essential Understanding All students should: Understand that solid figures are unique in their defining properties. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify properties of three-dimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). Analyze and compare properties of threedimensional (solid) geometric shapes (cylinders, cones, cubes, square pyramids, and rectangular prisms). Visualize, describe, and make models of rectangular prisms in the terms of the number and shape of faces, edges, and vertices. Interpret two-dimensional representations of three-dimensional objects (rectangular prisms) and draw patterns of faces for a solid that, when cut and folded, will make a model of the solid. Given a pictorial representation of a model, identify the number of faces, vertices, and edges. Grade 5 Curriculum Map—page 61 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Geometry SOL Reporting Category Measurement and Geometry Concept Three-Dimensional Figures PWC Grade Level Objective 5.16 Virginia SOL 5.16 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 2, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Geometry in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)- Picturing Polygons, Scott Foresman The Super Source books – Cuisenaire Rods, Color Tiles, Pattern Blocks and Geoboards Investigations in Number, Data, and Space (2004)- Picturing Polygons, Scott Foresman Investigations in Number, Data, and Space (2004) - Cubes and Containers, Scott Foresman About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar Virginia Department of Education Website – Geometry: http://www.pen.k12.va.us/VDOE/Instruction/Elem_M/geo_elem.html AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html “Diabolical Cube,” AIMS Magazine, Volume 8 Issue 2 “Cutting Corners,” AIMS Magazine, Volume 8 Issue 2 “Straws Take a Stand,” Hardhatting in a Geo-World “Polyhedron Models,” Soap Films and Bubbles Updated July 2009 Grade 5 Curriculum Map—page 62 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Probability and Statistics Students entering grades 4 and 5 have explored the concepts of chance and are able to determine possible outcomes of given events. Students have utilized a variety of random generator tools, including random number generators (number cubes), spinners, and two-sided counters. In game situations, students are able to predict whether the game is fair or not fair. Furthermore, students are able to identify events as likely or unlikely to happen. Thus the focus of instruction at grades 4 and 5 is to deepen their understanding of the concepts of probability by developing the continuum of terms to include impossible, unlikely, equally likely, possible, and certain; offering opportunities to set up models simulating real-life events; engaging students in activities to enhance their understanding of fairness; and engaging students in activities imbued with a spirit of investigation and exploration and providing students with opportunities to use manipulatives. The focus of statistics instruction is to assist students with further development and investigation of data-collection strategies. Students should continue to focus on: posing questions; collecting data and organizing this data into meaningful graphs, charts, and diagrams based on issues relating to real-world experiences; interpreting the data presented by these graphs; answering descriptive questions (“How many?” “How much?”) from the data displays; identifying and justifying comparisons (“Which is the most?” “Which is the least?” “Which is the same?” “Which is different?” “How much more is ______ than _____?”) about the information; comparing their initial predictions to the actual results; and writing a few sentences to communicate to others their analysis and interpretation of the data. Through a study of probability and statistics, students develop a real appreciation of data-analysis methods as powerful means for decision making. Updated July 2009 Grade 5 Curriculum Map—page 63 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Probability PWC Grade Level Objective 5.17 Virginia SOL 5.17 5.17A The student will solve problems involving the probability of a single event by using tree diagrams or by constructing a sample space representing all possible results. 5.17B The student will predict the probability of the outcome of a simple experiment, representing it with fractions or decimals from 0 to 1, and test this prediction. 5.17C The student will create a problem statement involving probability based on information from a given problem situation. Students will not be required to solve the problem created. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How is the probability of an event determined and described? How are experimental and theoretical probability related? How can we organize information in a sample space to show all of the possible combinations (outcomes)? What types of real-world situations involve probability? Understanding the Objective (Teacher Notes) Probability – the mathematics of chance – is an important topic in mathematics because the probability of particular events happening - or not happening - can be important to us in the real world. Probability helps people analyze games, lotteries, sports, traffic patterns, weather, insurance, business and many other aspects of life. Why might a TV weather forecast predict a 60% chance of rain? The forecast was calculated by meteorologists who looked at all other days in their historical database that had the same weather characteristics (temperature, pressure, humidity, etc.) and determined that on 60% of similar days in the past, it rained. Scientists and engineers use probability to model events that they cannot (or would not want to) actually create such as the likelihood of a plane crash after a wing design change, accidents resulting from a proposed traffic pattern, or a building collapse in high winds. Young children have difficulty distinguishing between certain events and likely events (and similarly between unlikely and impossible events). Elementary students should have opportunities to describe the degree of likelihood of an event occurring in informal terms, e.g., impossible, unlikely, as likely as unlikely or equally likely, likely, and certain. Activities should include real-life examples as well as probability experiments. Mathematically, probability expresses the chance that something will occur. The “somethings” that might occur are referred to as events. For any event such as flipping a coin, the equally likely things that can happen are called outcomes; e.g., there are two equally likely outcomes when flipping a coin: the coin can land heads up, or the coin can land tails up. A sample space represents all possible outcomes of an experiment. The sample space may be organized in a list, chart, or tree diagram. All students should: Understand and apply basic concepts of probability to make predictions of outcomes of simple experiments. Understand that a sample space represents all possible outcomes of an experiment. Understand that the measure of the likelihood of an event can be represented by a number from 0 to 1. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Construct a sample space using a tree diagram to identify all possible outcomes of a single event. Construct a sample space using a list or chart to represent all possible outcomes of a single event. Determine the probability of a single event where the total number of possible outcomes is 12 or less. Determine the outcome of an event that is impossible to occur (0) or certain to occur (1), when the number of possible outcomes is 12 or less. Create a problem statement involving probability based on information from a given problem situation. Students will not be expected to solve the problem. Tree diagrams are drawn to show all of the possible combinations (outcomes) in a sample space. The counting principle tells how to find the number of outcomes when there is more than one way to put things together. For example, how many different outfit combinations can you make from 2 shirts (red and blue) and 3 pants (black, white, khaki)? The sample space displayed in a tree diagram would show that there are 2 3 = 6 (counting principle) outfit combinations: red-black; red-white; red-khaki; blue-black; blue-white; blue-khaki). continued Updated July 2009 Grade 5 Curriculum Map—page 64 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Probability and Statistics The tree diagram below shows all combinations for 2 shirts (red and blue) and 3 pants (black, white, and khaki): Shirts red Pants Possible Outcomes black red shirt with black pants white red shirt with white pants khaki red shirt with khaki pants Year: Revised 2009 Essential Understanding 5.17 continued Concept Probability PWC Grade Level Objective 5.17 Virginia SOL 5.17 5.17A The student will solve problems involving the probability of a single event by using tree diagrams or by constructing a sample space representing all possible results. 5.17B The student will predict the probability of the outcome of a simple experiment, representing it with fractions or decimals from 0 to 1, and test this prediction. 5.17C The student will create a problem statement involving probability based on information from a given problem situation. Students will not be required to solve the problem created. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Probability and Statistics Subject: All students should: Understand and apply basic concepts of probability to make predictions of outcomes of simple experiments. Understand that a sample space represents all possible outcomes of an experiment. Understand that the measure of the likelihood of an event can be represented by a number from 0 to 1. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation black blue shirt with black pants to: blue white blue shirt with white pants Construct a sample space using a tree diagram to identify all possible outcomes of khaki blue shirt with khaki pants a single event. Construct a sample space using a list or chart to represent all possible outcomes of a The probability of an event occurring is the ratio of that specific outcome (“favorable” outcome) to single event. the total number of possible outcomes. If all the outcomes of an event are equally likely to occur, Determine the probability of a single event the probability of the event = where the total number of possible outcomes is 12 or less. number of favorable outcomes Determine the outcome of an event that is total number of possible outcomes impossible to occur (0) or certain to occur (1), when the number of possible outcomes The probability of an event occurring can be represented along a continuum from impossible to is 12 or less. certain. Numerically, the probability of an event occurring is represented by a ratio between 0 and 1. Create a problem statement involving An event that is impossible has a probability of 0; e.g., the probability that the month of April has 31 probability based on information from a days. An event that is certain has a probability of 1; e.g., the probability that the sun will rise given problem situation. Students will not tomorrow morning. If two outcomes are equally probable, each outcome has a probability of ½ (or be expected to solve the problem. 0.5 or 50%). Most events have a probability between zero and one. 0% 25% 50% 75% 100% 0 0.25 0.5 0.75 1 0 ¼ ½ ¾ 1 |____________|____________|____________|____________| impossible ↔ less likely ↔ equally likely ↔ more likely ↔ certain continued Updated July 2009 Grade 5 Curriculum Map—page 65 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Probability PWC Grade Level Objective 5.17 Virginia SOL 5.17 5.17A The student will solve problems involving the probability of a single event by using tree diagrams or by constructing a sample space representing all possible results. 5.17B The student will predict the probability of the outcome of a simple experiment, representing it with fractions or decimals from 0 to 1, and test this prediction. 5.17C The student will create a problem statement involving probability based on information from a given problem situation. Students will not be required to solve the problem created. Updated July 2009 5.17 continued Subject: Fifth Grade Mathematics Year: Revised 2009 Essential Understanding All students should: Understand and apply basic concepts of probability to make predictions of outcomes of simple experiments. Understand that a sample space represents all possible outcomes of an experiment. Understand that the measure of the likelihood of an event can be represented by a number from 0 to 1. Probability expresses the chance that an event will happen over the long term. When a probability experiment has very few trials, the results can be misleading. The more times an experiment is repeated, the closer the experimental probability comes to the theoretical probability, e.g., a coin lands heads up ½ of the time. It is challenging for students (and some adults) to understand that a mathematical probability is a prediction of the outcomes over a long period and not the prediction of the outcome for any single instance. Another common misconception (especially among gamblers) is the belief that chance has “memory”, for example, believing that if you haven’t rolled doubles for a long time, you are likely to roll a double very soon. Students tend to have difficulty with the concept of randomness. Our English language uses the term “luck” to represent both random good fortune (as in “the luck of the draw”) and the non-scientific predetermination of superstitious luck. The student will use problem solving, mathematical communication, mathematical To better understand the likelihood of events, students need to investigate probability first-hand. A reasoning, connections, and representation spirit of investigation and experimentation should permeate probability instruction, where students to: are actively engaged in exploration and data collection and have opportunities to experience the Construct a sample space using a tree difference between theoretical and experimental probability. diagram to identify all possible outcomes of a single event. Students should be able to write a problem statement for a situation involving probability. For Construct a sample space using a list or example, given a spinner with eight equal-size sections, three of which are red, three green, and two chart to represent all possible outcomes of a yellow, students should understand that the spinner is equally likely to land on any one of the single event. sections. They could write a problem statement such as, “What is the probability that the spinner will Determine the probability of a single event land on green?” where the total number of possible outcomes is 12 or less. Determine the outcome of an event that is impossible to occur (0) or certain to occur (1), when the number of possible outcomes is 12 or less. Create a problem statement involving probability based on information from a given problem situation. Students will not be expected to solve the problem. Grade 5 Curriculum Map—page 66 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics Subject: Resources Concept Probability PWC Grade Level Objective 5.17 Virginia SOL 5.17 SOL Reporting Category Probability and Statistics School: _____________________________ Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 9, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Data Analysis and Probability in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)- Between Never and Always, Scott Foresman The Super Source books –Color Tiles and Pattern Blocks Virginia Department of Education Website – Probability & Statistics: http://www.pen.k12.va.us/VDOE/Instruction/Elem_M/geo_elem.html Math: A Way of Thinking, Robert Baratta-Lorton About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Unique U,” Math + Science: A Solution "See How They Roll,” Pieces and Patterns "Pascal Wins the World Series,” What's Next? Volume 1 "Sum Will Sum Won't,” What's Next? Volume 1 "What's Happening?” What's Next? Volume 2 "Flip for It,” What's Next? Volume 2 Updated July 2009 Grade 5 Curriculum Map—page 67 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Statistics School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Essential Questions Understanding the Objective Essential Understanding Essential Questions What relationships are represented by tables, line plots, stem-and-leaf plots, bar graphs, and line graphs? How can we determine which data display is appropriate for a given set of data? How is a stem-and-leaf plot created and interpreted? How do the selections of the sample, method of data collection, and way in which data are displayed influence conclusions about the data? All students should: Understand that bar graphs compare categorical data; stem-and-leaf plots list data in a meaningful array; and line graphs show changes over time. Understand how to propose and justify conclusions and predictions that are based on displays of data. Understanding the Objective (Teacher Notes) Data is the collective term for pieces of information. (Datum refers to a single piece of data from a data set.) Data are collected in a context and for some purpose. Data analysis helps describe data, recognize patterns or trends, and make predictions. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Collect data using observations (e.g., weather), measurement (e.g., shoe size), Statistical investigations should be active, with students formulating questions about something in surveys (e.g., favorite television show), or their environment and finding quantitative ways to answer the questions. Investigations involving experiments (e.g., plant growth). real-world data should occur frequently, and data can be collected though brief class surveys or Organize the data into a chart or table. through more extended projects that can take many days. Data analysis should include opportunities Construct bar graphs, labeling one axis with to describe the data, recognize patterns or trends, and make predictions. The emphasis in all work Virginia SOL 5.18 equal whole number or decimal increments with data and statistics should be on the analysis and the communication of the analysis, rather than The student will, given a problem situation, and the other axis with attributes of the topic on a single correct answer. (categorical data: skiing, basketball, ice collect, organize, and display a set of hockey, skating, sledding as the categories of numerical data in a variety of forms, using bar By carrying out complete investigations – formulating questions, predicting answers to questions their favorite winter sports). Bar graphs will graphs, stem-and-leaf plots, and line graphs, under investigation, collecting and representing data, analyzing and drawing conclusions, and have no more than six categories. to draw conclusions and make predictions. evaluating whether the data answer the questions – students gain an understanding of data analysis as Display data in line graphs, bar graphs, or a tool. stem-and-leaf plots. Construct line graphs, labeling the vertical Graphical displays of data convey information visually, in compact form. Not all graphs are axis with equal whole number, decimal or appropriate for a given data set. Through experiences displaying and analyzing data in a variety of fractional increments and the horizontal axis graphical representations, students learn to select an appropriate representation. with continuous data often related to time, e.g., hours, days, months, years, age. Line graphs will have no more than six identified Categorical data summarize responses with respect to a given category; categorical data are often, points along a continuum for continuous data though not always, words. Questions generating categorical data often start with “Which” or “What”: e.g., decades: 1950, 1960,1970,1980, 1990, In which months were the greatest number of classmates born? What are the favorite flavors of ice 2000. cream? What kinds of pets do our classmates have? What is your favorite number? The only method Construct a stem-and-leaf plot to organize for comparing categorical data is to describe the number of data points in each category. Because and display data, where the stem is listed in frequency counts can be made for the values of each category, students often confuse numerical and ascending order and the leaves are in categorical data. Categorical data can be organized in tallies and tables and are often represented in ascending order, with or without commas pictographs, circle graphs (pie charts), and bar graphs. between leaves. Title the given graph, or identify the title. Bar graphs should be used to compare counts of different categories (categorical data). One bar is Interpret the data to compare the answer to used for each category with the length of the bar representing the count for that category. There is the prediction. space before, between, and after the bars. The width of the bars should be approximately equal to the Write a few sentences to describe the width of the spaces before, between, and after the bars. interpretation of the data. continued PWC Grade Level Objective 5.18 5.18A The student will collect, organize, and display a set of numerical data in a variety of forms given a problem situation. 5.18B The student will use tables, bar graphs, stem-and-leaf plots, and line graphs to draw conclusions and make predictions. Updated July 2009 Grade 5 Curriculum Map—page 68 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Probability and Statistics Concept Statistics Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Probability and Statistics Subject: 5.18 continued The axis displaying the scale representing the count for the categories should extend one increment above the greatest recorded piece of data. Fifth-grade students should collect data that is recorded in increments of multiples of whole numbers, decimals, and fractions. Each axis should be labeled and the graph should have a title. Using grid paper ensures more accurate graphs. Double bar graphs are often used to compare two sets of data. In double bar graphs, the two bars for each category are colored (or hatched) differently and positioned without space in between the pair. A key is used to identify the data sets. Year: Revised 2009 Essential Understanding All students should: Understand that bar graphs compare categorical data; stem-and-leaf plots list data in a meaningful array; and line graphs show changes over time. Understand how to propose and justify conclusions and predictions that are based on displays of data. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Collect data using observations (e.g., weather), measurement (e.g., shoe size), surveys (e.g., favorite television show), or Numerical data are values that are quantities that can be ordered, such as counts, measurements and experiments (e.g., plant growth). ratings. Questions generating numerical data often ask “How much” or “How many”; for example: Organize the data into a chart or table. How many children are in each family? How tall are the basketball players on the team? How many Construct bar graphs, labeling one axis with Virginia SOL 5.18 minutes do students watch TV each night? On a scale of 1 (low) to 5 (high), how would you rate your equal whole number or decimal increments The student will, given a problem situation, love of pizza? Because numerical data involve a range of values, data spread or concentration can be and the other axis with attributes of the topic (categorical data: skiing, basketball, ice collect, organize, and display a set of described and statistics can be calculated. hockey, skating, sledding as the categories of numerical data in a variety of forms, using bar their favorite winter sports). Bar graphs will graphs, stem-and-leaf plots, and line graphs, Numerical data can be discrete or continuous. Discrete data are data for which only certain values have no more than six categories. to draw conclusions and make predictions. are possible. For instance, the number of children in a family or the number of letters in a name Display data in line graphs, bar graphs, or generates discrete data because each data point must be a whole number. Continuous data occur on a stem-and-leaf plots. continuous scale. For any two specified values of continuous data, there are always values in Construct line graphs, labeling the vertical between. For instance, the time it takes to walk to school or the height of basketball players are axis with equal whole number, decimal or continuous data. Line plots, stem-and-leaf plots, histograms, box-and-whisker plots, and line graphs fractional increments and the horizontal axis are useful representations of numerical data. with continuous data often related to time, e.g., hours, days, months, years, age. Line Line graphs are used to represent a specific type of continuous data which records how one variable graphs will have no more than six identified changes in relationship to another variable over time. By looking at a single-line graph, you can points along a continuum for continuous data determine whether the variable is increasing, decreasing or staying the same over time. e.g., decades: 1950, 1960,1970,1980, 1990, 2000. The values along the horizontal axis represent continuous data on a given variable, usually some Construct a stem-and-leaf plot to organize measure of time (e.g., time in years, months, or days). The vertical axis represents the variable being and display data, where the stem is listed in measured over time (the dependent variable). The values along the vertical axis are the scale and ascending order and the leaves are in represent the frequency with which those values occur in the data set. The values should represent ascending order, with or without commas equal increments of multiples of whole numbers, fractions, or decimals depending upon the data between leaves. Title the given graph, or identify the title. being collected. The scale should extend one increment above the greatest recorded piece of data. Interpret the data to compare the answer to Each axis of a line graph should be labeled, and the graph should have a title. the prediction. continued Write a few sentences to describe the interpretation of the data. PWC Grade Level Objective 5.18 5.18A The student will collect, organize, and display a set of numerical data in a variety of forms given a problem situation. 5.18B The student will use tables, bar graphs, stem-and-leaf plots, and line graphs to draw conclusions and make predictions. Updated July 2009 Students should write statements representing their analysis and interpretation of the characteristics of the data in the bar graph, e.g., similarities and differences, least and greatest, the categories, total number of responses. Grade 5 Curriculum Map—page 69 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Probability and Statistics Concept Statistics Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Probability and Statistics Subject: 5.18 continued Multiple line graphs enable the display and comparison of two or more quantities that are increasing or decreasing over time. Students should generate statements representing an analysis and interpretation of the characteristics of the data in the graph; e.g., similarities and differences, mode, least and greatest, and trends. Year: Revised 2009 Essential Understanding All students should: Understand that bar graphs compare categorical data; stem-and-leaf plots list data in a meaningful array; and line graphs show changes over time. Understand how to propose and justify conclusions and predictions that are based on displays of data. Line plots (introduced to students in Grade 3) are used to show the frequency with which each value of data appears and provide a visual representation of the shape of the data. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Stem-and-leaf plots also allow the listing of the exact value of each piece of data in a meaningful Collect data using observations (e.g., array, but they do so in a more compact fashion which groups data within specific sub-ranges. Stem weather), measurement (e.g., shoe size), and leaf plots provide a quick way to see the shape of the data set – the range of the data, where surveys (e.g., favorite television show), or values are spread or concentrated, the minimum and maximum values, and outliers (atypical data experiments (e.g., plant growth). points). As with line plots, the statistics – range, median, and mode – can be “seen” in the stem-and- Organize the data into a chart or table. leaf plot, and mean, median, mode, and range can be calculated from the data display. Construct bar graphs, labeling one axis with Virginia SOL 5.18 equal whole number or decimal increments From this data of students’ ages: 13, 10, 14, 12, From this data of precipitation in one decade: 212, The student will, given a problem situation, and the other axis with attributes of the 14, 9, 23, 13, 13, 21 233, 239, 240, 248, 236, 236, 230, 235, 240 topic (categorical data: skiing, basketball, collect, organize, and display a set of ice hockey, skating, sledding as the numerical data in a variety of forms, using bar Ages of Students Taking Piano Lessons Number of Days with Precipitation categories of their favorite winter sports). graphs, stem-and-leaf plots, and line graphs, Stem Leaves Stem Leaves Bar graphs will have no more than six to draw conclusions and make predictions. 0 9 21 2 categories. 1 0233344 22 Display data in line graphs, bar graphs, or 23 035669 2 13 stem-and-leaf plots. 24 008 Construct line graphs, labeling the vertical axis with equal whole number, decimal or Stem and leaf plots are best used to display small data sets; e.g., data covering a range of 25 numbers. fractional increments and the horizontal To create a stem-and-leaf plot, organize the data from least to greatest. Each value should be axis with continuous data often related to separated into a stem and a leaf, e.g., two-digit numbers are separated into stems (tens) and leaves time, e.g., hours, days, months, years, age. (ones). The stems are listed vertically from least to greatest with a line to their right. The leaves are Line graphs will have no more than six listed horizontally, also from least to greatest, and can be separated by spaces or commas. Every identified points along a continuum for value is recorded, regardless of the number of repeats. The plot should be titled, and a key is often continuous data e.g., decades: 1950, included to explain how to read the plot. Double stem and leaf plots (back-to-back stem and leaf 1960,1970,1980, 1990, 2000. plots) can be used to compare two sets of data. Construct a stem-and-leaf plot to organize and display data, where the stem is listed in From each data display, students should be able to discuss what information it does and does not ascending order and the leaves are in provide about the topic or question and what conclusions can and cannot be drawn. In addition to ascending order, with or without commas creating and interpreting their own data representations, students should analyze and critique the between leaves. interpretations made by others. One way to accomplish this is to select from among given choices an Title the given graph, or identify the title. appropriate analysis of the data presented in a bar graph, line graph, or stem-and-leaf plot. For Interpret the data to compare the answer to example, given a line graph showing the number of in-line skaters (in millions) in the U.S. over the the prediction. time period 1980-2000 in five-year intervals, students could select the correct answer response that Write a few sentences to describe the relates to the graph, such as, the greatest increase in number of in-line skaters occurred between interpretation of the data. 1990-1995. PWC Grade Level Objective 5.18 5.18A The student will collect, organize, and display a set of numerical data in a variety of forms given a problem situation. 5.18B The student will use tables, bar graphs, stem-and-leaf plots, and line graphs to draw conclusions and make predictions. Updated July 2009 Grade 5 Curriculum Map—page 70 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Statistics PWC Grade Level Objective 5.18 Virginia SOL 5.18 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 8 and 9 and TenMinute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Data Analysis and Probability in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)- Between Never and Always, Data: Kids, Cats and Ads, Scott Foresman Number Sense Grades 4-6 by McIntosh et al The The Super Source books–Color Tiles and Pattern Blocks Virginia Department of Education Website – Probability & Statistics http://www.pen.k12.va.us/VDOE/Instruction/Elem_M/geo_elem.html Exploring Probability by Newman T. Etal About Teaching Mathematics, a K-8 Resource by Marilyn Burns Tables, Charts, and Graphs by Milliken Publications Used Numbers: Real Data in the Classroom by R. Corwin and S. Friel Statistics: Middles, Means, and In-Betweens, Grades 5 and 6 About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "Seeds From Fruit,” The Budding Botanist Updated July 2009 Grade 5 Curriculum Map—page 71 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Measures of Central Tendency PWC Grade Level Objective 5.19 Virginia SOL 5.19 The student will find the mean, median, mode, and range of a set of data. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions How do statistics—mean, median, mode, and range—provide numeric pictures of the shape of data? How are mean, median, and mode similar? How are they different? What are the advantages/disadvantages of each for describing a data set? How are the mean, median, mode, and range of a set of data computed? How can they be determined from various data displays: Tables? Graphs? Stem-and-leaf plots? All students should: Understand how to determine the mean, median, mode, and range of a set of data. Understand that the mean is the numerical average of a data set; the median is the number in the middle of a set of data; the mode is the piece of data that occurs most often; and the range is the spread of a set of data. Understanding the Objective (Teacher Notes) The branch of mathematics concerned with collecting, recording, representing, interpreting, and analyzing large amounts of data is known as statistics. Statistics are used to describe numerical data. The student will use problem solving, A statistic is a numerical value, calculated from a data set, which characterizes or describes that mathematical communication, mathematical data set in a specific way. All statistics should be interpreted in the context of the shape of the data. reasoning, connections, and representation to: Calculate the mean of a group of numbers Mean, median, mode, and range are four of the various statistics that can be use to analyze and representing data from a given context. describe numerical data (although categorical data can also have a mode). The mean, median, and Determine the median of a group of mode are all types of averages or measures of central tendency. An average is a single number that numbers representing data from a given is descriptive of what is “typical” in a larger collection of numbers. In everyday use, most people context. associate the term “average” with the arithmetic mean, but it is important to understand that median Determine the mode of a group of numbers and mode are also averages. representing data from a given context. Determine the range of a group of numbers representing data from a given context. The mean or arithmetic mean is the numerical average of the data set found by adding all the values in the set and dividing by the number of values. The mean can be thought of as a statistic describing a “fair share.” To understand the concept of the mean, students should experience the mean as a “leveling” of the data or as the “balance point” of a set of numbers. The mean can be thought about as a point on the number line where the data on either side of the point are balanced. As an indicator of center, the mean may be skewed by outliers in the data set. The median is the piece of data that is in the middle of the set of data arranged in order; i.e., the median divides the pieces of data in two equal parts. If the data set contains an even number of numbers, the median is the number halfway between the two central values. The median in not necessarily the number in the middle of the range. In their analyses, statisticians frequently “slice” or segment the data in order to look more closely at parts and see patterns; the median is the first slice. The median is a stable measure of center and is not as easily affected by outliers as is the mean. Thus, for large data sets (e.g., census data), the median often provides a more reliable average (or measure of center) than the mean. continued Updated July 2009 Grade 5 Curriculum Map—page 72 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Probability and Statistics Concept Measures of Central Tendency PWC Grade Level Objective 5.19 Virginia SOL 5.19 The student will find the mean, median, mode, and range of a set of data. Updated July 2009 Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Probability and Statistics Subject: Year: Revised 2009 Essential Understanding 5.19 continued All students should: Understand how to determine the mean, The mode is the piece of data that occurs most frequently. There may be one, more than one, or no median, mode, and range of a set of data. mode in a data set. The mode is deceptively easy to identify; however, its value lies in considering it Understand that the mean is the numerical in relation to the entire data set. For example, is the mode part of a representative “clump” of data or average of a data set; the median is the is it simply the number that occurs most frequently in a set of data more evenly spread out? number in the middle of a set of data; the mode is the piece of data that occurs most The range is a measure of variation. The range describes the spread of a set of data and is often; and the range is the spread of a set of determined by subtracting the smallest number (minimum) in the data from the largest number data. (maximum) in the data. The range should always be considered in the context of the entire data set. For example, do the minimum or maximum values represent outliers? (An outlier is an unusual The student will use problem solving, value – usually one that has a much higher or lower value than others in a data set.) Students should mathematical communication, mathematical analyze whether/why outliers may represent errors or special circumstances. They should consider reasoning, connections, and representation to: how outliers may affect other statistics such as the mean. Calculate the mean of a group of numbers representing data from a given context. Students need to learn more than how to identify the mean, median, mode, and range in a data set Determine the median of a group of and from graphic representations of data sets. They need to build an understanding of what the numbers representing data from a given numbers tell them about the data, and they need to interpret those values in the context of the shape context. of the data and other characteristics of the data including the real-life context from which it was Determine the mode of a group of numbers collected. representing data from a given context. Determine the range of a group of numbers representing data from a given context. Grade 5 Curriculum Map—page 73 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Probability and Statistics SOL Reporting Category Probability and Statistics Concept Measures of Central Tendency PWC Grade Level Objective 5.19 Virginia SOL 5.19 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 9 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Data Analysis and Probability in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Investigations in Number, Data, and Space (2004)- Data: Kids, Cats and Ads Scott Foresman Tables, Charts, and Graphs by Milliken Publications Used Numbers: Real Data in the Classroom by R. Corwin and S. Friel Statistics: Middles, Means, and In-Betweens, Grades 5 and 6 About Teaching Mathematics: A K – 8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Good Questions for Math Teaching: Why Ask Them and What to Ask, K - 6 by Peter Sullivan and Pat Lilburn Classroom Discussion: Using Math Talk to Help Students Learn, Grades 1 - 6 by Suzanne H. Chapin, Catherine O’Conner, and Nancy Canavan Anderson Math for All: Differentiating Instruction, Grades 3 – 5 by Linda Dacey and Jayne Bamford Lynch Supporting English Language Learners in Math Class, Grades 3 – 5 by Rusty Bresser, Kathy Melanese, and Christine Sphar AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "The Penny Sort and Nickel Dates,” Math + Science: A Solution "Can You Planet?” Out of This World Updated July 2009 Grade 5 Curriculum Map—page 74 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Subject: Fifth Grade Mathematics Year: Revised 2009 Patterns, Functions, and Algebra Students entering grades 4 and 5 have had opportunities to identify patterns within the context of the school curriculum and in their daily lives, and they can make predictions about them. They have had opportunities to use informal language to describe the changes within a pattern and to compare two patterns. Students have also begun to work with the concept of a variable by describing mathematical relationships in open number sentences, and they have begun to solve simple equations with one unknown. The focus of instruction is to help students develop a solid use of patterning as a problem-solving tool. At this level, patterns are represented and modeled in a variety of ways, including numeric, geometric, graphic, and algebraic formats. Students develop strategies for organizing information more easily to understand various types of patterns and functional relationships. They analyze the structure of patterns by exploring and describing patterns that involve change, and they begin to generalize these patterns. By analyzing mathematical situations and models, students begin to represent these, using symbols and variables to write “rules” for patterns, to describe relationships and algebraic properties, and to represent unknown quantities. Updated July 2009 Grade 5 Curriculum Map—page 75 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Patterns, Functions, and Algebra Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra Subject: Essential Understanding Essential Questions How can a pattern be identified, described, and represented? What is the relationship between patterns and functions (“rules”)? How can pattern identification be used to solve problems? Understanding the Objective (Teacher Notes) Concept Patterns PWC Grade Level Objective 5.20 Virginia SOL 5.20 The student will analyze the structure of numerical and geometric patterns (how they change or grow) and express the relationship using words, tables, graphs, or mathematical sentences. Concrete materials and calculators will be used. Year: Revised 2009 A logical pattern is a predictable sequence of elements (sounds, colors, letters, words, numbers, objects, geometric shapes, etc.). Logical patterns occur regularly in mathematics. A pattern is recognized by detecting its underlying structure or rule. In patterns represented with geometric shapes, students must often recognize transformations of a figure, particularly, rotation or reflection. Rotation (turn) is the action of turning a figure around a point or a vertex; and reflection (flip) is the result of a figure flipped over a line. Identifying and extending patterns is an important process in algebraic thinking. There are an infinite number of patterns. The same pattern can be found in many different forms. Reproduction of a given pattern in a different representation, using symbols and objects, lays the foundation for writing the relationship symbolically or algebraically. All students should: Understand that patterns and functions can be represented in many ways and described using words, tables, graphs, and symbols. Understand the structure of a pattern and how it grows or changes. Understand that mathematical relationships exist in patterns. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Describe numerical and geometric patterns formed by using concrete materials and calculators. Express the relationship found in numerical and geometric patterns, using words, tables, graphs or a mathematical sentence. Patterns can be described verbally, numerically, and generalized symbolically using variables. Organizing data into tables and recognizing patterns in the data is one strategy for problem solving. Tables of values should be analyzed for a pattern to determine what element comes next. The simplest types of patterns are repeating patterns. In each case, students need to identify the basic unit (or core) of the pattern and repeat it. Opportunities to create, recognize, describe, and extend repeating patterns are essential to the primary school experience. Non-repeating patterns are more difficult for students to understand than repeating patterns as they must not only determine what comes next, but they must also begin the process of generalization. Growing patterns are non-repeating patterns that involve a progression from step to step. (These are technically termed sequences, and the steps are also referred to as terms or stages.) Sample growing patterns (where one variable changes in the basic unit): ABAABAAABAAAAB 123112311123 ▄ ▲▲▄ ▄ ▲▲▄ ▄ ▄ ▲▲ Students may confuse the term “growing” with “increasing”. They should also encounter growing patterns that “diminish” such as 220, 200, 180, 160, … continued Updated July 2009 Grade 5 Curriculum Map—page 76 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ SOL Reporting Category Patterns, Functions, and Algebra Concept Patterns PWC Grade Level Objective 5.20 Virginia SOL 5.20 The student will analyze the structure of numerical and geometric patterns (how they change or grow) and express the relationship using words, tables, graphs, or mathematical sentences. Concrete materials and calculators will be used. Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra Subject: Essential Understanding 5.20 continued Growing patterns (sequences) built with objects or geometric shapes also have a numeric component (the number of shapes or objects in each step). Students need experiences recognizing, creating and extending growing patterns in both numeric and geometric formats. Representing growing patterns in tables provides an informal entry point to the concept of function, as students extend the pattern and describe the “rule”. Pattern ? Year: Revised 2009 All students should: Understand that patterns and functions can be represented in many ways and described using words, tables, graphs, and symbols. Understand the structure of a pattern and how it grows or changes. Understand that mathematical relationships exist in patterns. Rule: ? Step Number 1 5 2 7 3 9 4 ? The numerical relationships represented in the function table can also be graphed on coordinate graphs (using ordered pairs representing the step (x) and the number (y), and the pattern or rule can be deduced from the shape of the graph. Tables and graphs are important tools in solving problems and making predictions in situations involving change. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Describe numerical and geometric patterns formed by using concrete materials and calculators. Express the relationship found in numerical and geometric patterns, using words, tables, graphs or a mathematical sentence. In some growing patterns called arithmetic sequences (or linear sequences), students must determine the difference, called the “common difference,” between each succeeding number in order to determine what is added to each previous number to obtain the next number. Sample arithmetic patterns include 6, 9, 12, 15, 18, … ; and 5, 7, 9, 11, 13, ... (The sequence 1, 2, 4, 7, 11, 16, … is a numeric pattern, but is not an arithmetic sequence because there is no common difference. The difference increases by 1 each time.) In some other growing patterns called geometric sequences (or exponential sequences), students must determine what each number is multiplied by to obtain the next number in the geometric sequence. This multiplier is called the “common ratio.” Sample geometric number patterns include: 2, 4, 8, 16, 32, ...; 1, 5, 25, 125, 625, ...; and 80, 20, 5, 1.25, .... In describing a sequence, the use of the term “geometric” refers to the way the numeric pattern changes, not to the format of the pattern (e.g., a pattern made with geometric shapes). Other patterns are formed by specific sequences. The sequence of triangular numbers is the sum of consecutive positive integers: 1, 3, 6, 10, … (1 = 1, 1 + 2 = 3, 1 + 2 + 3 = 6, 1 + 2 + 3 + 4 = 10, …). The sequence of perfect squares can be represented pictorially (with arrays) and numerically: 1, 4, 9, 16, 25, … (1 x 1 = 1, 2 x 2 = 4, 3 x 3 = 9, 4 x 4 = 16, 5 x 5 = 25, …) It is not advisable to name these specific types of sequences with elementary students. Both arithmetic and geometric sequences can be represented with shapes as well as numbers. Updated July 2009 Grade 5 Curriculum Map—page 77 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra SOL Reporting Category Patterns, Functions, and Algebra Concept Patterns PWC Grade Level Objective 5.20 Virginia SOL 5.20 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 8, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Algebra in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Number Sense Grades 4-6 by McIntosh et al The Super Source books – Snap Cubes About Teaching Mathematics, a K-8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Discovery in Mathematics by Robert B. Davis Family Math by Jean Kerr Stenmark, Virginia Thompson, and Ruth Cossey Lessons for Algebraic Thinking, Grades 3- 5 by Maryann Wickett, Katharine Kharas, and Marilyn Burns AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html Updated July 2009 Grade 5 Curriculum Map—page 78 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra SOL Reporting Category Patterns, Functions, and Algebra Concept Variables School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions What is a variable? …a variable expression? …an open sentence? How is the “equal sign” in an open sentence (equation) like the fulcrum of a balance scale? How can we use variable expressions and equations (open sentences) to represent problem situations? How can we write problem situations to represent given variable expressions and equations (open sentences)? Understanding the Objective (Teacher Notes) PWC Grade Level Objective 5.21 5.21A The student will use a variable to represent a given verbal quantitative expression involving one operation. Describe how the variable is used in the given verbal quantitative expression. Algebra is a tool that can make communicating mathematical ideas and solving mathematical problems easier. If mathematics is viewed as a language, then algebra can be viewed as the shorthand of mathematics. Year: Revised 2009 Essential Understanding All students should: Understand that a variable is a symbol that can stand for any member of a set of numbers. Understand that a variable expression is a variable or combination of variables, numbers, and symbols that represents a mathematical relationship. Understand that verbal quantitative expressions can be translated to variable expressions. Understand that an open sentence is a mathematical sentence with a variable. A variable is a symbol that can stand for any one of a set of numbers or other objects. A variable is a quantity that can change. Any letter can stand for a variable. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: 5.21B The student will write an open sentence An expression is like a phrase because it has no equal sign. An expression can be a number (e.g., 7), Describe the concept of a variable using a variable to represent a given a variable (e.g., x), or show an arithmetic operation involving a number and a variable (e.g., 7 + x). (presented as boxes, letters, or the other mathematical relationship. Describe how the To represent a verbal quantitative expression involving one operation, write an expression that symbols) as a representation of an unknown variable is used to represent a given describes what is going on. Use numbers when they are known; use variables when the numbers are quantity. mathematical relationship. unknown. For example, where b is a variable standing for the number of cookies in one box of Use a variable expression to represent a cookies ,“a full box of cookies and 4 extra” may be represented as b + 4, “three full boxes of given verbal expression, involving one Virginia SOL 5.21 cookies” as 3b, and “a full box of cookies shared among 4 people” as b/4. Expressions with operation e.g., 5 more than a number can be The student will variables are known as variable expressions. represented by x + 5. a) Investigate and describe the concept of Write an open sentence with addition, variable; An equation is a mathematical sentence that describes a relationship between two mathematical subtraction, multiplication, or division using b) Use a variable expression to represent a expressions or ideas. An open sentence is a mathematical sentence (equation) with a variable. It a variable to represent a missing number. given verbal quantitative expression involving contains an equals (=) sign. For example, where b is a variable standing for the number of cookies one operation; and in one box of cookies, “one full box of cookies and 4 extra are 24 cookies” may be represented as b c) Write an open sentence to represent a given + 4 = 24, and “three full boxes of cookies are 60 cookies” as 3b = 60. mathematical relationship using a variable. The concept of equality is not as straightforward or simple as it might appear. Students often view the equal sign as a signal to carry out the specified operation(s). They must understand, instead, that the equal sign signifies that the quantity on each side of the equation is the same. To understand equality in a manner that will support algebraic thinking, students must interpret expressions such as 6 + 2, 42 x 8, and a + b as single quantities. At this level, discuss how the “x” symbol used to represent multiplication, can often be confused with a variable x. Students can minimize this confusion using parentheses [e.g., 4(x) = 20], or a small raised dot to represent multiplication. Updated July 2009 Grade 5 Curriculum Map—page 79 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra SOL Reporting Category Patterns, Functions, and Algebra Concept Variables PWC Grade Level Objective 5.21 Virginia SOL 5.21 School: _____________________________ Subject: Resources Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 8, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Algebra in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Ideas From the Arithmetic Teacher, Elementary by George Immerzeel and Melvin Thomas Activities from the Mathematics Teacher, NCTM Think About It by Marcy Cook About Teaching Mathematics, a K-8 Resource by Marilyn Burns Lessons for Algebraic Thinking, Grades 3- 5 by Maryann Wickett, Katharine Kharas, and Marilyn Burns Virginia Department of Education Website – Patterns, Functions & Algebra http://k12.va.us/VDOE/Instruction/Elem_M/mathtrain.html AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "The Big Banana Peel,” Math + Science: A Solution Updated July 2009 Grade 5 Curriculum Map—page 80 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra SOL Reporting Category Patterns, Functions, and Algebra School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Essential Questions What is an open sentence? How are problem situations represented by open sentences? How can open sentences represent problem situations? Year: Revised 2009 Essential Understanding All students should: Understand that an open sentence is a mathematical sentence with a variable. Understand that problem situations can be expressed as open sentences. Understanding the Objective (Teacher Notes) Concept Problem Solving with Variables PWC Grade Level Objective 5.22 The student will create and solve problem situations based on a given open sentence using a single variable. Virginia SOL 5.22 The student will create a problem situation based on a given open sentence using a single variable. Updated July 2009 Please refer to the Teacher Notes for Objective 5.21. An open sentence is a mathematical sentence (equation) containing a variable. It also contains an equals (=) sign, e.g., b + 3 = 23. It represents the solution to a word problem; e.g.: How many cookies are in a box if the box plus three more equals 23? In this equation, b stands for the number of cookies in one box. The variable (number of cookies in one box) could be represented by any letter; thus, the open sentence for this problem could also be represented as n + 3 = 23 or x + 3 = 23, etc. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Create and write a word problem to match a given open sentence with a single variable and one operation. By using story problems and numerical sentences, students begin to explore forming equations and representing quantities using variables. Grade 5 Curriculum Map—page 81 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective SOL Reporting Category Patterns, Functions, and Algebra Concept Problem Solving with Variables PWC Grade Level Objective Subject: Resources PWC Curriculum Strand Patterns, Functions, and Algebra School: _____________________________ 5.22 Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Units 7 and 8 and TenMinute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Algebra in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Ideas From the Arithmetic Teacher, Elementary by George Immerzeel and Melvin Thomas Activities from the Mathematics Teacher, NCTM Think About It, Marcy Cook About Teaching Mathematics, a K-8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Lessons for Algebraic Thinking, Grades 3- 5 by Maryann Wickett, Katharine Kharas, and Marilyn Burns Virginia Department of Education Website – Patterns, Functions & Algebra: http://www..k12.va.us/VDOE/Instruction/Elem_M/mathtrain.html AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "The Big Banana Peel,” Math + Science: A Solution Updated July 2009 Grade 5 Curriculum Map—page 82 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra SOL Reporting Category Patterns, Functions, and Algebra Concept Coordinate graphing PWC Grade Level Objective 5.23 The student will identify the ordered pair for a point on a graph, and locate the point for an ordered pair in the first quadrant of a coordinate plane or the x- or y-axis. School: _____________________________ Subject: Fifth Grade Mathematics Essential Questions Understanding the Objective Year: Revised 2009 Essential Understanding Essential Questions What is an ordered pair? How can ordered pairs be used to read and describe the locations of points and objects on a coordinate plane? How are graphs of ordered pairs used to represent relationships? Understanding the Objective (Teacher Notes) Coordinate systems are used in the disciplines of mathematics, science, social studies, and geography to determine locations, distances, and positions. In mathematics a coordinate system is a reference system for locating and graphing points. In two dimensions, a coordinate system usually consists of a horizontal axis and a vertical axis, which intersect at the origin. Each point in the plane is located by its horizontal distance and vertical distance from the origin. These distances, or coordinates, form an ordered pair of numbers. A coordinate plane is a way to precisely locate points in a plane. To draw a coordinate plane, draw a horizontal number line, called the x-axis, and a vertical number line called the y-axis, which intersect in a right angle at 0 (the origin) on each number line. Any point on a coordinate plane may be named with two numbers. These two numbers are the Cartesian coordinates (ordered pair). The pair is always named in order; first x, (the location along the x-axis), then y, (the location along the y-axis), and is represented (x, y). All students should: Understand how to use two numbers to name points on a coordinate grid. Understand that a pair of numbers on a coordinate plane corresponds to only one point on the grid. Understand how to write and graph ordered pairs from a table to related values. The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Identify the ordered pair for a point in the first quadrants of a coordinate plane. Locate points on a coordinate grid, given the order pair. Write correct notation for ordered pairs. Locate points on a coordinate grid, given a table of values. The x-axis and the y-axis divide the coordinate plane into four sections called quadrants. The coordinates are plotted in relationship to the x- and y-axes. When both numbers in an ordered pair (x, y) are positive, the ordered pair is in the first quadrant. Students’ first experiences with coordinate graphing utilize the first quadrant of the coordinate plane. When plotting a point, start at (0, 0), the origin, and let the x-coordinate tell you how far to move horizontally. Then, let the y-coordinate tell you how far to move vertically. If the x-coordinate is positive, you move to the right on the horizontal axis. If the y-coordinate is positive, you move up on the vertical axis. continued Updated July 2009 Grade 5 Curriculum Map—page 83 MAPPING FOR INSTRUCTION Teacher: _____________________________ School: _____________________________ Fifth Grade Mathematics Essential Questions Understanding the Objective Curriculum Objective PWC Curriculum Strand Patterns, Functions, and Algebra Subject: 5.23 continued Concept Coordinate graphing A table of values is an organized way to list related ordered pairs. The related ordered pairs are formed according to a “rule” or a relationship. As students explore patterns that involve a progression from step to step, the students not only extend the pattern but also look for a generalization or an algebraic relationship that will tell them what the pattern will be at any point along the way (rule for the pattern). This exploration provides the foundation for determining a functional relationship. PWC Grade Level Objective 5.23 The student will identify the ordered pair for a point on a graph, and locate the point for an ordered pair in the first quadrant of a coordinate plane or the x- or y-axis. Event 1 2 3 4 SOL Reporting Category Patterns, Functions, and Algebra Year: Revised 2009 Essential Understanding All students should: Understand how to use two numbers to name points on a coordinate grid. Understand that a pair of numbers on a coordinate plane corresponds to only one point on the grid. Write and graph ordered pairs from a table of values. # of counters 2 4 6 8 The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representation to: Locate points on a coordinate grid, given a table of values. Identify the ordered pair for a point in the Students can extend their work with patterns and functions to explore how a graph, a description, first quadrants of a coordinate plane. and an expression/equation can represent a functional relationship. Locate points on a coordinate grid, given the order pair. Write correct notation for ordered pairs. The coordinate view of shape offers another way to understand certain properties of shapes, changes in position (transformations), and how they appear or change in size (visualization). Transformation of shapes (translations – slides, reflections – flips, and rotations – turns) can be described in terms of coordinates, allowing for digital manipulation of shapes. Computer animation applies a combination of coordinate geometry and algebra. Coordinate geometry also provides a way to determine relationships among lengths, areas, and volumes. In algebra, coordinate graphing provides an analytic view of the concept of slope and of perpendicular and parallel relationships. Updated July 2009 Grade 5 Curriculum Map—page 84 MAPPING FOR INSTRUCTION Teacher: _____________________________ Curriculum Objective SOL Reporting Category Patterns, Functions, and Algebra Concept Problem Solving with Variables PWC Grade Level Objective Subject: Resources PWC Curriculum Strand Patterns, Functions, and Algebra School: _____________________________ 5.23 Fifth Grade Mathematics Year: Revised 2009 Teacher Notes Investigations in Number, Data, and Space (2008)—Unit 8 and Ten-Minute Math, Pearson PWC Mathematics Web Site: http://www.pwcsmath.com Curriculum and Evaluation Standards, NCTM, 1989 Principals and Standards for School Mathematics, NCTM, 2000 Addenda Series, Grade 5, NCTM Navigating through Measurement in Grades 3-5, NCTM Elementary and Middle School Mathematics by John Van deWalle Ideas From the Arithmetic Teacher, Elementary by George Immerzeel and Melvin Thomas Activities from the Mathematics Teacher, NCTM Think About It, Marcy Cook About Teaching Mathematics, a K-8 Resource by Marilyn Burns Math Matters: Understanding the Math You Teach, Grades K – 8 by Suzanne H. Chapin Lessons for Algebraic Thinking, Grades 3- 5 by Maryann Wickett, Katharine Kharas, and Marilyn Burns Virginia Department of Education Website – Patterns, Functions & Algebra: http://www..k12.va.us/VDOE/Instruction/Elem_M/mathtrain.html AIMS Activities: Virginia SOL Correlations to AIMS Activities: http://www.aimsedu.org/statedocs/virginia/virginia.html "The Big Banana Peel,” Math + Science: A Solution Updated July 2009 Grade 5 Curriculum Map—page 85