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Albemarle County Public Schools K-12 Mathematics Curriculum May 2007 Mathematics Vertical Team May, 2007 This curriculum document represents the collective thinking of numerous individuals who have dedicated themselves to research and conversation on and about mathematics curriculum and instruction over the past three academic years (2004-2007). Mathematics Vertical Team (2006-2007) Brooke Asher Melissa Batchelet Nicole Butt Catherine Coffman Jennie Critzer Alexandra Davis Katie Haskins Linda Insalaco Ann Messina Sheila Porter Marlene Robinson Tres Wells Cale Elementary School Hollymead Elementary School Scottsville Elementary School Albemarle High School Walton Middle School Department of Instruction Monticello High School Sutherland Middle School Red Hill Elementary School Jack Jouett Middle School Department of Instruction Burley Middle School Other teachers have also served on the Mathematics Vertical Team during the 2004 – 2006 school years and made significant contributions to this document: Janina Buechner India Haun Vicki Hendrix Jay Smith Chuck Witt Mathematics Vertical Team, May, 2007 Henley Middle School Department of Instruction, Walton Middle School Baker-Butler Elementary School Sutherland Middle School, Greer Elementary School Western Albemarle High School 1 Table of Contents Introduction ………………………………………………………………………………………… 3 Mathematics Concepts and Enduring Understandings ……………………………….. 4 Philosophy ……………………………………………………………………………………….. 5 Habits of Mind of a Mathematician 6 ……………………………………………………….. Organization of the Mathematics Curriculum Document Annotated Matrix Graphic .………………………. 7 ………………………………………………………………. 9 Mathematics Curriculum Matrix K-12 Vertical Sample ………………………………….. 11 Appendix Guide ………………………………………………………………………………. 32 Appendix Lifelong Learner Standards ……………………………………………………… Mathematics Curriculum Assessment Model Bloom’s Taxonomy of Questioning The Content Strands of Mathematics ……………………………… ii ……………………………………………… ii …………………………………………… iii Mapping the Mathematical Enduring Understandings to the Mathematics Content Strands Number and Operations ………………………………………………….. Data Analysis and Probability ……………………………………………. Geometry and Measurement …………………………………………… Patterns and Algebra ……………………………………………….......... Bibliography ……………….…………………………………………………………………. Mathematics Vertical Team, May, 2007 i v vi ix xi xiii 2 Introduction This document represents the work of the Mathematics Vertical Team which received its mandate to develop a comprehensive K-12 mathematics curriculum to support the development of the Framework for Quality Learning (FQL). As stated in the FQL: The Albemarle County Public Schools’ core purpose is to establish a community of learners and learning, through rigor, relevance, and relationships one student at a time. The Framework for Quality Learning guides and supports teachers’ development and implementation of a system for high-quality curricula, assessment, and instruction as they act on this vision and facilitate all students attaining deep understanding of the disciplines … By organizing standards around key concepts and understandings of the discipline, we engage the personal intellect and emotions of the students (Erickson, 2002). When students explore concepts over time as opposed to facts in isolation, they develop deeper understanding and are able to transfer knowledge across disciplines and situations. The Framework for Quality Learning sets rigorous expectations for how students learn, analyze information, and communicate, leading to increased student engagement, content mastery, and higher-order thinking. Application of the Framework for Quality Learning advances the Division’s vision: ‘All learners believe in their power to embrace learning, to excel, and to own their future’ (Framework for Quality Learning, 2006). Supporting the FQL, the mathematics curriculum is rooted in standards-based and concept-centered instruction and curriculum with connections to the Lifelong-Learner Standards, Virginia’s Mathematics Standards of Learning (SOL), and the process and content standards of the National Council of Teachers of Mathematics (NCTM) as articulated in Principals and Standards for School Mathematics. These various standards provide insight into what all students must know, understand, and be able to do in authentic mathematical contexts. The Mathematics Concepts and Enduring Understandings are outlined in the Framework for Quality Learning (FQL) connecting the Mathematics (Discipline Level) Concepts and the Interdisciplinary Concepts to the topics or content area of inquiry (p. 4). Mathematics Vertical Team, May, 2007 3 Mathematics Concepts and Enduring Understandings Interdisciplinary Concepts Systems Mathematics Concepts Relationships Quantifying Representation Properties and Models Models Analysis and Evaluation Enduring Understandings Relationships among numbers and number systems form the foundations of number sense and mathematical communication. Spatial relationships can be described using coordinate geometry and other representational systems. Attributes of objects can be measured using processes and quantified units, using appropriate techniques, tools, and formulas. Situations and structures can be represented, modeled, and analyzed using algebraic symbols. Mathematical models are used to predict and make inferences about data. Data can be collected, organized, and displayed in purposeful ways. Change and Interactions Patterns Cause and Effect Various statistical methods can be used to observe, analyze, predict, and make inferences about data. Patterns and relationships among operations are essential to making estimates and computing fluently. Patterns, relations, and functions can be recognized and understood mathematically. Communication Reasoning and Justification Theory Change, in various contexts, both quantitative and qualitative, can be identified and analyzed. Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Transformations, symmetry, and spatial reasoning can be used to analyze and model mathematical situations. Probability and data analysis can be used to make predictions. Mathematics Vertical Team, May, 2007 4 Philosophy Dewey said the most important role of school is learning. And learning is a consequence of thinking. Today’s society demands trained and agile thinkers, and today’s students must learn to make meaning for themselves and to solve problems for which they do not have answers (Costa, 1997). The Life-Long Learner Standards (Appendix i) identified in the Framework for Quality Learning (FQL), set expectations for how students develop a wide variety of knowledge, understanding, and skills. It is also important to consider the desired characteristics (values, attitudes, and skills) of a student and ultimately an adult working within the discipline. For the purposes of this document, we developed the Habits of Mind of a Mathematician (p. 6) through incorporation of what are commonly considered the process standards of learning about and doing mathematics. What would we wish for students to know, understand, and be able to do when they complete K-12 mathematics? Our ultimate goal would be for a student to exhibit the disposition to understand how to think about and do mathematics and to apply mathematics to authentic applications and real-world situations. We designed the mathematics curriculum document to illustrate the spiraling of concepts from kindergarten through twelfth grade as an interpretation of how the discipline level enduring understandings continue to grow throughout a child’s education to ultimately support the lifelong-learner skills. The curriculum document is not intended to replace the Virginia Mathematics Standards of Learning, or to be interpreted as a complete mathematics curriculum. It offers connections among the content standards, essential questions and understandings, processes and skills, various cognitive levels of assessment, and vocabulary to guide instruction through the strands of mathematics content. The Mathematics Curriculum Matrix can generate an understanding of the way the concepts of K-12 mathematics move across the grades and impact instruction at every level by creating consistency and continuity across the division. The document is a means to provide equal access to quality mathematics instruction for all students, and create a vision of a continuous, seamless integration of content and process standards that travel with increasing sophistication through the K-12 mathematics curriculum. Mathematics Vertical Team, May, 2007 5 Habits of Mind of a Mathematician • Analyze situations in mathematical terms and pose and solve problems based on situations observed • Select and use various types of reasoning to develop and evaluate mathematical arguments and proofs • Organize and consolidate mathematical thinking through precise verbal, written, and graphical communication • Understand how mathematical ideas interconnect and build on one another to produce a coherent whole • Use representations to model and interpret physical, social, and mathematical phenomena • Evaluate and use technology appropriately as a tool to support and apply the problem-solving process Mathematics Vertical Team, May, 2007 6 The Organization of the Mathematics Curriculum Document The Mathematics Curriculum Document is a system of documents that are organized electronically through the Mathematics Curriculum Matrix. By the document’s very nature, it is difficult to describe its three dimensional capacity on two dimensional paper. The beauty of the model, however, is its ability to flexibly meet the specific needs of individual teachers by linking concepts and standards in a way that allows variation depending on the lens of inquiry. The organization of the model is through the umbrella of the K-12 Mathematics (Discipline Level) Enduring Understandings. These enduring understandings were developed by using the national and state mathematics content and process standards and the Framework for Quality Learning. The concepts and ideas were also informed by the ideas of various education researchers connected to the work of Albemarle County (i.e. Erickson, Wiggins and McTighe, Antonetti, DuFour, etc). In the Mathematics Curriculum Document, the Mathematics Enduring Understandings connect to the content standards of mathematics curriculum commonly identified as: Number and Operations, Data and Probability, Geometry and Measurement, and Patterns and Algebra (Appendix iii). Through these content strands of mathematics, connections are made with the Virginia Mathematics Standards of Learning (SOL), and the National Mathematics Standards as articulated by the National Council of Teachers of Mathematics (NCTM) in Principles and Standards for School Mathematics. Each of the K-12 Mathematics Enduring Understandings is then translated into curriculum, assessment, and instruction for various stages of a child’s development, through grade band essential understandings and ultimately to the grade specific curriculum and assessment. We have mapped these Mathematics Enduring Understandings, the Mathematics Concepts, and Interdisciplinary Concepts (p.4) to the specific content strands (Appendix iii) of the mathematics curriculum. This electronic structure will provide the teacher with the ability to research by concept or content standards (mathematics strand or SOL); by grade level or grade band; and perhaps by vocabulary. The format will facilitate making connections across the grade levels and the important overarching concepts and ideas within and eventually beyond the discipline of mathematics. For every K-12 Mathematics Enduring Understanding each grade level is represented in the matrix document, as is every Virginia Mathematics SOL. The following description of each component of the Mathematics Curriculum Matrix is followed by a graphic that articulates the physical placement of these components as they occur in all grade levels for each Mathematics Enduring Understanding (p.4). Mathematics Vertical Team, May, 2007 7 The Mathematics Curriculum Matrix is structured into five key components. These components are organized under the umbrella of each of the Mathematics Enduring Understandings (p.4). The structure enables the teacher to view the connections not only among the broad Discipline Level Concepts and the Interdisciplinary Level Concepts, but also the connections through the continuum of K-12 mathematics content. The five key components are: 1. The grade band expectation This statement gives a more specific interpretation of the K-12 Mathematics (Discipline Level) Enduring Understanding and focus for the grade band instruction. 2. The Essential Understanding at the specific grade level Essential understandings help teachers focus the content on what a student needs to know, understand, and do by making connections between the topics and the enduring understanding as it spirals through the grade levels with increasing sophistication. 3. Assessment The assessment section provides samples within the hierarchy of Bloom’s Taxonomy of the Cognitive Domain to provide teachers with a better understanding of the different levels of challenge required to meet the intent of a particular standard. 4. Vocabulary The vocabulary section provides common terminology that promotes consistency of mathematical language and facilitates accurate communication as a student moves through the grades. 5. Virginia Mathematics Standards of Learning Connections The Virginia Mathematics Standards of Learning at every grade level are mapped to the Mathematics Curriculum Matrix. There are also supporting Standards of Learning that may occur at different grade levels or in different content areas. If there is no direct link to the Standards of Learning, the required processes and skills for the grade level are referenced. In the graphic below, these five key components are numbered respectively under the umbrella of the K-12 Mathematics Enduring Understandings. While not named as a key component, three other organizational tags occur in the document: grade level, mathematics strand, and concept number within that particular strand, and are labeled accordingly in the graphic. Mathematics Vertical Team, May, 2007 8 Annotated Graphic Example of the Mathematics Curriculum Matrix, Grade 3 K-12 Mathematics Enduring Understanding Mathematics Content Strand Grade Level 1 Grade band expectation 4 Vocabulary Assessment Sample Knowledge/Comprehension 2 Essential Understandings for this grade 3 Virginia SOL Supporting Virginia SOL Assessment Sample Application/Analysis Assessment Sample Synthesis/Evaluation 5 Supporting Skills and Processes Concept within the content strand Interdisciplinary Concept Mathematics Vertical Team, May, 2007 Mathematics Concept (Discipline Level) 9 The next pages present conceptually a vertical view of one K-12 Mathematics Enduring Understanding as it spirals through the grades. The example you are viewing, from the FQL document Mathematics Curriculum (p. 4), is specifically: Interdisciplinary Concepts Communication Mathematics Concepts Reasoning and Justification Enduring Understandings Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. This particular Mathematics Enduring Understanding is the first of four contained in the Geometry and Measurement content strand (Appendix iii). Within the content strand of Geometry and Measurement, the grade band expectations of Concept 1 spiral through the K-12 Mathematics Curriculum as identified below. Geometry and Measurement, Concept 1 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Grade Band Expectations: In grade band K-2: Represent and compare 2- and 3- dimensional shapes through drawings, block construction, dramatizations, and words In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming and classifying geometric objects In grade band 9-12: In grades 9-12: Analyze characteristics and properties about geometric shapes and develop mathematical arguments about these shapes in applied settings in authentic situations It may be helpful to use the graphic (p. 9) to locate the key components of the Mathematics Curriculum Matrix as you move through the document. Notice the increasing sophistication of the grade band and grade level expectations that map to the same discipline level enduring understanding. The vocabulary should also create consistency. We would like to emphasize that this document is a “working document” that has already had numerous iterations, and therefore subject to revision and improvement as we share and discuss the work with our colleagues in the division. Mathematics Vertical Team, May, 2007 10 Mathematics Curriculum Matrix as excerpted from Geometry and Measurement Content Strand, Concept 1 Grades K-12 Mathematics Vertical Team, May, 2007 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade K In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • • • Two-dimensional shapes help them represent and describe their world. Geometric figures can be classified by shape. Two- and threedimensional shapes can be combined to make new shapes. Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Identify Shapes: Give students a sheet with a circle, square, triangle, and rectangle drawn on it. Point to a shape and ask, “What is this?” Do this for all shapes. If the student cannot name shapes, follow up by asking the student to “Point to a circle.” Do this for all four shapes. Application/Analysis Level: • “Sort by Attributes” (ACAP): Give a set of 10 attribute blocks, all the same color and thickness. Use 5 different shapes and at least 2 different sizes. Ask the students, “How can you sort these into piles that belong together?” If they do not begin to sort within a minute say, “Think about how they are alike or different.” Do not give prompts to sort by shape or size. Vocabulary triangle square rectangle circle side corner larger smaller same/equal Synthesis/Evaluation Level: • Using the sort created above, ask the student: 1. How are the blocks in this pile alike? 2. How are the blocks in this pile different from the other pile? SOL: K.11 The student will identify, describe, and draw two-dimensional (plane) geometric figures (circle, triangle, square, and rectangle). K.13 The student will compare the size (larger, smaller) and shape of plane geometric figures (circle, triangle, square, and rectangle). Communication Reasoning and Justification Concept 1 11 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 1 In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • Vocabulary used to explain their strategies to sort and/or group plane geometric figures Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Give students a sheet with a triangle, square, rectangle, and circle on it. Tell students to: color all circles red or color all triangles blue. Vocabulary triangle square rectangle Application/Analysis Level: “Shape Cards” (Quilt Squares and Block Towns, Investigations in Data, Number and Space) (Attachment A.1) • Cut out the shape cards and sort them into two or more groups. • Glue them onto a piece of paper. • Label each group. Synthesis/Evaluation Level: • Build a structure using 3 or 4 Geoblocks. Draw what you made. Rubric: Advanced circle side corner square corner two-dimensional three-dimensional • Student accurately creates a 2-D representation of the 3-D shapes used in block structure Proficient • Student attempts to show size and thickness in representation • Student is able to describe characteristics of the Geoblocks Near Proficient • Student uses 3 or 4 blocks • Student represents each block in the structure by drawing only 1 face of that block (2-D) • Student effectively shows how many blocks are arranged Needs Improvement • Student uses incorrect number of blocks • Student does not distinguish individual block (may draw outline of whole construction) • Student is unable to show how blocks are arranged SOL: 1.16 The student will draw, describe, and sort plane geometric figures (triangle, square, rectangle, and circle) according to number of sides, corners, and square corners. Supporting SOL: 1.17 The student will identify and describe objects in his/her environment that depict plane geometric figures (triangle, rectangle, square, and circle). Communication Reasoning and Justification Concept 1 12 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 2 In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • • • Differences and similarities between twoand three-dimensional shapes. Three-dimensional figures can be identified by the number of edges, faces, corners, and by the shape of their faces. Similarities between everyday objects and 3dimensional figures Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Tell students to number 1 – 3 on a piece of paper. Ask the students to find an example of a cylinder, a sphere, and a cube in the classroom, and draw and label what they found. Vocabulary solid rectangular solid square pyramid sphere Application/Analysis Level: • Give students solid figures and ask them to sort them into groups. Have students explain their rationalization. cylinder cone face Synthesis/Evaluation Level: “Making a Shed” (Balanced Assessment, Elementary Grades Assessment) (Attachment A.2) • Give students “Making a Shed”. Ask the students to make a replication of the shed using solid figures. The students need to explain why their model matches the 2-dimensional version using geometric language. base edge corner plane figure two-dimensional three-dimensional SOL: 2.20 2.22 The student will identify, describe, and sort three-dimensional (solid) concrete figures, including a cube, rectangular solid (prism), square pyramid, sphere, cylinder, and cone, according to the number and shape of the solid’s faces, edges, and corners The student will compare and contrast plane and solid geometric shapes (circle/sphere, square/cube, and rectangle/rectangular solid). Communication Reasoning and Justification Concept 1 13 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 3 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • • • Lines are composed of line segments and points. Two-dimensional shapes can be described by the number of sides (line segments), corners (angles), and square corners. Three-dimensional shapes can be described by the number of faces, edges, corners, square corners, and by the shape of faces. Relationships between 2- and 3dimensional figures (circle/sphere, square/cube, triangle/pyramid, and rectangle/rectangular solid). Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Show students a solid figure. Answer the following questions: 1. What is the name of this figure? 2. What shapes are its faces? 3. How many faces does it have? 4. How many edges does it have? Application/Analysis Level: • Give students pipe cleaners and clay. Build a solid that has 3 rectangular faces and 2 triangular faces. Draw their figure. Answer these questions about their figures: 1. What is the name of this figure? 2. How many edges does your figure have? 3. How many corners does your figure have? 4. How many line segments does your figure have? Synthesis/Evaluation Level: • Give students pipe cleaners and clay. Ask students, “Given two rectangles, what kinds of other shapes can you add to make a 3-dimensional figure? Make as many different solids as you can and label them. How do you know these are all the solids that can be made?” Vocabulary line point line segment angle face corner square corner edge solid cube cylinder cone rectangular solid sphere square pyramid SOL: 3.18 The student will analyze two-dimensional (plane) and three-dimensional (solid) geometric figures (circle, square, rectangle, triangle, cube, rectangular solid [prism], square pyramid, sphere, cone, and cylinder) and identify relevant properties, including the number of corners, square corners, edges, and the number and shape of faces, using concrete models. 3.19 The student will identify and draw representations of line segments and angles, using a ruler or straightedge. Supporting Skills and Processes: Name 2- and 3-dimensional figures based on a picture or a written description. Sort 3-dimensional figures. Identify and draw lines, points, angles, and line segments. Communication Reasoning and Justification Concept 1 14 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 4 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • Points, lines, line segments, and rays are fundamental components of noncircular geometric figures. The shortest distance between two points on a flat surface is a line segment. Assessment Samples – SOL/Blooms Vocabulary Knowledge/Comprehension Level: • Which of the following letters have two parallel line segments? A L N V point line line segment Z ray Application/Analysis Level: • Describe how shape A is different from shapes B and C. angle two-dimensional figure plane • • • Lines in a plane either intersect or are parallel. Perpendicularity is a special case of intersection. Students will identify real-world situations that illustrate parallel, intersecting, and perpendicular lines. Students will understand that 2dimensional (plane) figures are unique in their defining properties. parallel intersect / intersection perpendicular circle polygon A B C triangle quadrilateral square Synthesis/Evaluation Level: • Create a drawing of a parallelogram that is composed of a square and two congruent right triangles. Now create another drawing of a parallelogram (also composed of a square and two congruent, right triangles) which is not similar to the first drawing you did. Based on what you know about these polygons, explain why both of these drawings are parallelograms. rectangle parallelogram rhombus three-dimensional figure sphere cube Communication Reasoning and Justification Concept 1 15 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 4 rectangular solid (prism) cylinder cone face edge vertex base SOL: 4.14 The student will investigate and describe the relationships between and among points, lines, line segments, and rays. 4.15 The student will a) identify and draw representations of points, lines, line segments, rays, and angles, using a straightedge or ruler; and b) describe the path of shortest distance between two points on a flat surface. 4.16 The student will identify and draw representations of lines that illustrate intersection, parallelism, and perpendicularity. 4.17 a) The student will analyze and compare the properties of two-dimensional (plane) geometric figures (circle, square, rectangle, triangle, parallelogram, and rhombus) and three-dimensional (solid) geometric figures (sphere, cube, and rectangular solid [prism]). Communication Reasoning and Justification Concept 1 16 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 5 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • • The defining properties and symmetry of various plane figures are unique. Simple plane figures can be combined to make more complicated figures; and, complicated figures can be subdivided into simple plane figures. Solid figures are unique in their defining properties. Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: 1. Choose four 3-dimensional figures from the set of geometric solids, and list the characteristics for each figure. Vocabulary parallel perpendicular side 2. Using your ruler, draw a polygon that satisfies these conditions. A. The polygon has only two right angles. B. The polygon has only two congruent sides. C. Label the right angles and the two congruent sides. angle vertex diagonal Application/Analysis Level: • Alan says that if a figure has four sides, it must be a rectangle. Gina does not agree. Draw two figures that show Gina is correct. Explain how your figure supports Gina’s belief that each four-sided figure is not necessarily a rectangle. similar Synthesis/Evaluation Level: • “Mystery Rings” (Navigating Through Geometry in Grades 3-5, NCTM) (Attachment A.5) triangle congruent two-dimensional polygon right triangle acute triangle obtuse triangle scalene triangle isosceles triangle equilateral triangle quadrilateral rectangle square parallelogram kite Communication Reasoning and Justification Concept 1 17 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 5 trapezoid rhombus three-dimensional face edge pyramid prism cylinder cone cube SOL: 5.15 The student, using two-dimensional (plane) figures (square, rectangle, triangle, parallelogram, rhombus, kite, and trapezoid) will a) recognize, identify, describe, and analyze their properties in order to develop definitions of these figures; b) identify and explore congruent, non-congruent, and similar figures; c) investigate and describe the results of combining and subdividing shapes. 5.16 The student will identify, compare, and analyze properties of three-dimensional (solid) geometric shapes (cylinder, cone, cube, square, pyramid, and rectangular prism). Supporting 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. 5.9 The student will identify and describe the diameter, radius, chord, and circumference of a circle. 5.13 The student will measure and draw right, acute, and obtuse angles and triangles, using appropriate tools. 5.14 The student will classify angles and triangles as right, acute, or obtuse. Supporting Skills and Processes: Construct models of 2- and 3-dimensional figures using a variety of resources to include technology and manipulatives. Communication Reasoning and Justification Concept 1 18 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 6 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • • An angle is two rays diverging from a common point. Names for angles and triangles by defining referents and characteristics. Plane figures are identified, classified, and described by their similarities, differences, and defining properties. • The meaning of congruence. • The attributes of perpendicular lines and a bisector. • • Assessment Samples – SOL/Blooms Vocabulary Use “Shapes and Designs”, Connected Mathematics (Attachment A.6) for the following: vertex Knowledge/Comprehension Level: • What name could you give A, H, U, and R? line ray line segment triangle Application/Analysis Level: • What are the features of a polygon? An angle? • Can you make a distinction between a trapezoid and a parallelogram? Explain your thinking. Synthesis/Evaluation Level: • The figures I, L, and V can be grouped together, but X would not belong in the group. Explain why. • The figures U, S, and E can be grouped together, but G would not belong in the group. Explain why. obtuse acute right isosceles equilateral quadrilaterals rhombus trapezoid How to interpret a picture of a solid figure from a twodimensional diagram and vice versa. parallelogram square rectangle pentagon The decomposition of a solid figure into a discrete set of surfaces. hexagon heptagon octagon polygon congruent Communication Reasoning and Justification Concept 1 19 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 6 bisect rectangular prism cylinder pyramid two-dimensional three-dimensional surface edge angle ruler protractor degrees two-dimensional model (net) SOL: 6.13 The student will a) estimate angle measures, using 45°, 90°, and 180° as referents, and use the appropriate tools to measure the given angles; and b) measure and draw right, acute, and obtuse angles and triangles. 6.14 The student will identify, classify, and describe the characteristics of plane figures, describing their similarities, differences, and defining properties. 6.15 The student will determine congruence of segments, angles, and polygons by direct comparison, given their attributes. Examples of noncongruent and congruent figures will be included. 6.16 The student will construct the perpendicular bisector of a line segment and an angle bisector. 6.17 The student will sketch, construct models of, and classify solid figures (rectangular prism, cone, cylinder, and pyramid). Communication Reasoning and Justification Concept 1 20 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 7 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • • • • Quadrilaterals can be classified according to the attributes of their sides and/or angles. A quadrilateral can belong to one or more subsets of the set of quadrilaterals and has all of the defining attributes of the subset. The meaning of prefixes associated with the number of sides of a polygon. Assessment Samples – SOL/Blooms Vocabulary Knowledge/Comprehension Level: • Which of the following characteristics must be present in order to classify a quadrilateral as a parallelogram? a. exactly one pair of equal adjacent sides b. exactly one pair of parallel sides c. a diagonal as an axis of symmetry d. two equal adjacent angles e. two pairs of parallel sides quadrilateral Application/Analysis Level: “Geometric Shapes” (NCTM Mathematics Assessment Sampler, Grades 6-8) (Attachment A.7) diagonal parallelogram rectangle square rhombus trapezoid perpendicular polygons Similar geometric figures have the same shape but may have different sizes. Five geometric terms are listed in alphabetical order: equilateral triangle, rhombus, right isosceles triangle, square, trapezoid. • Which one of the geometric terms listed above most accurately describes shape A? Explain how you know that is your answer. • Repeat the question above for shapes B, C, and D. How ratios and proportions can be used to determine the length of something that cannot be measured directly. Synthesis/Evaluation Level • Luis claimed that a figure must be a square if it is a parallelogram and has all its sides the same length. Is Luis correct? Defend your decision with a written argument. pentagon hexagon heptagon octagon nonagon decagon sides triangle proportion similar congruent regular polygon corresponding angles Communication Reasoning and Justification Concept 1 21 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 7 corresponding sides angle ruler protractor degrees straight angle two-dimensional model (net) SOL: 7.9 The student will compare and contrast the following quadrilaterals: parallelogram, rectangle, square, rhombus, and trapezoid. Deductive reasoning and inference will be used to classify quadrilaterals. 7.10 The student will identify and draw the following polygons: pentagon, hexagon, heptagon, octagon, nonagon, and decagon. 7.11 The student will determine if geometric figures, quadrilaterals and triangles, are similar and write proportions to express the relationships between corresponding parts of similar figures. Communication Reasoning and Justification Concept 1 22 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 8 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • Assessment Samples – SOL/Blooms Use the following figure to answer the questions below. vertical supplementary Pairs of angles are named by their defining attributes. A three-dimensional object can be represented as a two-dimensional model that represents views of the object from different perspectives. Vocabulary 3 1 3 1 complementary Building Base Plan 1 front Knowledge/Comprehension Level: • Using your cubes, make a model of the building shown in the base plan above. Application/Analysis Level: • A set of building plans includes the base outline, the front view, and the right view. Sketch a full set of building plans on grid paper for a new building of your design with the same base outline as the building represented above. angle measure draw intersecting protractors angle ruler straight angle degrees three-dimensional figures top side bottom Synthesis/Evaluation Level: • Explain how your new building can have the same set of building plans as the original building even though your new building has a different base plan. isometric geometric solids two-dimensional model (net) polyhedron polygon SOL: 8.6 The student will verify by measuring and describe the relationships among vertical angles, supplementary angles, and complementary angles and will measure and draw angles of less than 360°. 8.9 The student will construct a three-dimensional model, given the top, side, and/or bottom views. Communication Reasoning and Justification Concept 1 23 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grades 9-12 In grade band 9-12: Analyze characteristics and properties of geometric shapes and develop mathematical arguments about these shapes in applied settings in authentic situations Essential Understandings All students will understand: • Intersecting lines form angles with measurable characteristics, relationships and properties. Assessment Samples – SOL/Blooms A clothing designer must carefully measure segments and angles to create a pattern. The figure below is part of a clothing design pattern. All measurements are in centimeters. Vocabulary parallel perpendicular point line plane • • • • • The interior and exterior angles of polygons have measurable characteristics, relationships, and patterns. Two- and three-dimensional shapes can be constructed with a compass, straight-edge, patty-paper, and various technology applications. Congruency and similarity in polygons have real-life application in a variety of areas including art, architecture, and sciences. Congruency and similarity can be demonstrated using logical reasoning. Polygons have defining characteristics with their sides, angles and diagonals. angle polygon congruent similar Knowledge/Comprehension Level: • Based on the given information, what do you know about angles B and E.? Why? Application/Analysis Level: • What do you know about triangle ABC and triangle DEC. Justify by using a two column proof. • Find the measurement of CD. Support your answer using geometric concepts. • Find the measurement of FE, FC, and BC. Justify. Synthesis/Evaluation Level: • Determine the perimeter of triangle ABC and triangle DEC. How is this relevant to our clothing designer? • If the design is to be repeated twice, what is the total area of the fabric needed? side diagonal Pythagorean Theorem triangle arc secant chord tangent circle diameter radius perimeter area Communication Reasoning and Justification Concept 1 24 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand • • The Pythagorean Theorem is essential for solving triangle problems. Grades 9-12 The regular tetrahedron shown in figure(a) has grown a regular tetrahedron (with a side half as long) on each of its faces in figure (b). Figure (c) shows the new solid (b) in the process of growing tetrahedra on its faces in the same way. Many relationships exist between and among angles, arcs, secants, chords, and tangents of a circle. • Three-dimensional figures are a part of everyday life. • Modeling is an overall part of design for products and structures. • Perimeter, area, surface area and volume are all measurable characteristics of 2- and 3dimensional shapes. • Formulas can be derived to generalize perimeter, area, surface area and volume. Communication surface area volume quadrilateral iterations tetrahedron/tetrahedra Knowledge/Comprehension Level: • Complete the tables below. Reasoning and Justification Concept 1 25 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grades 9-12 Application/Analysis Level: • Determine the total surface area of the 20th iteration? • Determine the total surface area of the nth iteration as • • • n → ∞? th Determine the total volume of the 20 iteration? Determine the total volume of the nth iteration as n → ∞ ? Compare the total surface area and the total volume as n → ∞. Synthesis/Evaluation Level: • Create a similar model using a cube, and then construct a table similar to the tetrahedron. SOL: G.5 The student will a) investigate and identify congruence and similarity relationships between triangles; and b) prove two triangles are congruent or similar, given information in the form of a figure or statement, using algebraic and coordinate as well as deductive proofs. G.8: The student will a) investigate and identify properties of quadrilaterals involving opposite sides and angles, consecutive sides and angles, and diagonals; b) prove these properties of quadrilaterals, using algebraic and coordinate methods as well as deductive reasoning; and c) use properties of quadrilaterals to solve practical problems. Supporting SOL: G.1 The student will construct and judge the validity of a logical argument consisting of a set of premises and a conclusion. This will include a) identifying the converse, inverse, and contrapositive of a conditional statement; b) translating a short verbal argument into symbolic form; c) using Venn diagrams to represent set relationships; and d) using deductive reasoning, including the law of syllogism. G.4 The student will use the relationships between angles formed by two lines cut by a transversal to determine if two lines are parallel and verify, using algebraic and coordinate methods as well as deductive proofs. G.6 The student, given information concerning the lengths of sides and/or measures of angles, will apply the triangle inequality properties to determine whether a triangle exists and to order sides and angles. These concepts will be considered in the context of practical situations. Supporting Skills and Processes: Knowledge and understanding of the properties and relationships among basic two- and three-dimensional shapes; use of deductive reasoning to establish or refute conjectures. Communication Reasoning and Justification Concept 1 26 Geometry and Measurement Strand Grade 1 Assessment Attachment A.1 Shape Cards Cut out the shape cards. Sort them into two or more groups and glue them onto a piece of paper. Label each group. Rubric: Advanced Proficient Nearing Proficient Needs Improvement • • • • • • Student sorts into 3 or more categories Student sorts by attributes such as number of sides, straight/curved sides, and number of corn Student is able to flexibly regroup the shapes Student uses all shapes and sorts them into distinct categories Student accurately labels each category Student may be unable to use all 9 shapes but is able to sort some shapes into distinct groups • • • Student is unable to use all 9 shapes Student is unable to sort into distinct groups Student is unable to label or identify the attribute Communication Reasoning and Justification Concept 1 27 Geometry and Measurement Strand Grade 2 Making a Shed Communication Assessment Attachment A.2 Reasoning and Justification Concept 1 28 Geometry and Measurement Strand Grade 5 Communication Assessment Attachment A.5 Reasoning and Justification Concept 1 29 Geometry and Measurement Strand Grade 6 Shapes and Designs Assessment Attachment A.6 Knowledge/Comprehension Level • What name could you give A, H, U, and R? Application/Analysis Level • What are the features of a polygon? An angle? • Can you make a distinction between a trapezoid and a parallelogram? Explain your thinking. Synthesis/Evaluation Level • The figures I, L, and V can be grouped together, but X would not belong in the group. Explain why. • The figures U, S, and E can be grouped together, but G would not belong in the group. Explain why. Communication Reasoning and Justification Concept 1 30 Geometry and Measurement Strand Grade 7 Geometric Shapes Communication Assessment Attachment A.7 Reasoning and Justification Concept 1 31 Appendix Mathematics Vertical Team, May, 2007 Appendix Guide Lifelong-Learner Standards ………………………………….……………….………………….. Assessment in the Mathematics Curriculum Matrix ………………………………………… ii ……………………………………………….. ii …………………………………………………………. iii Bloom’s Taxonomy of the Cognitive Domain The Content Strands of Mathematics i Mapping the Mathematics Enduring Understandings to the Mathematics Content Strands Number and Operations …………………………………………….. …………………… Data Analysis and Probability ………………………………………. …………………… Geometry and Measurement ……………………………………………………………. Patterns and Algebra ………………………………………………....…………………… v vi ix xi Bibliography xiii ……………………………………………………………………………………..…. Mathematics Vertical Team, May, 2007 Lifelong-Learner Standards The Division has identified 12 Lifelong-Learner Standards that set expectations for how students develop a wide variety of knowledge, understanding, and skills. These standards articulate the necessary components of lifelong learning that allow all students to succeed as members of a global community and in a global economy. The Lifelong-Learner Standards are overarching process-based standards, not discrete fact-based standards that can be addressed in a single lesson or even a single unit. These standards demand attention over time and across all disciplines (FQL, 2006). Lifelong-Learner Standards 1. Plan and conduct research; 2. Gather, organize, and analyze data, evaluate processes and products, and draw conclusions; 3. Think analytically, critically, and creatively to pursue new ideas, acquire new knowledge, and make decisions; 4. Understand and apply principles of logic and reasoning; develop, evaluate, and defend arguments; 5. Seek, recognize and understand systems, patterns, themes, and interactions; 6. Apply and adapt a variety of appropriate strategies to solve new and increasingly complex problems; 7. Acquire and use precise language to clearly communicate ideas, knowledge, and processes; 8. Explore and express ideas and opinions using multiple media, the arts, and technology; 9. Demonstrate ethical behavior and respect for diversity through daily actions and decision making; 10. Participate fully in civic life, and act on democratic ideals within the context of community and global interdependence; 11. Understand and follow a physically active lifestyle that promotes good health and wellness; and, 12. Apply habits of mind and metacognitive strategies to plan, monitor, and evaluate one’s own work. Mathematics Vertical Team, May, 2007 i Assessment in the Mathematics Curriculum Matrix The assessment section of the Mathematics Curriculum Matrix provides samples within the hierarchy of Bloom’s Taxonomy of the Cognitive Domain to provide teachers with a better understanding of the different levels of challenge required to meet the intent of a particular standard. These assessment samples are intended as examples to help a teacher focus on the level of questioning and performance needed for a student to gain deep understanding of a particular standard. There is not a specific assessment provided for all six levels of Bloom’s Taxonomy, but the assessment examples have been placed in three tiers of the domain to represent low level (Knowledge and Comprehension), middle level (Application and Analysis), and high level (Synthesis and Evaluation)cognitive demands. Bloom’s Taxonomy of the Cognitive Domain Knowledge: Students recall information; students exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. Comprehension: Students recognize what they know in context; students identify relationships between pieces of information; students demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions, and stating main ideas. Application: Students use what they know and comprehend in the performance of a skill; students solve problems applied to new situations by using acquired knowledge, facts, techniques, and rules in new ways. Analysis: Students draw conclusions from new data, making interpretations based on familiar patterns in what they know and comprehend; students examine and break information into parts by identifying motives or causes; students make inferences and find evidence to support generalizations. Synthesis: Students create a new work that demonstrates their ability to apply their knowledge, comprehension, and analysis of information in a student-generated product; students compile information together in a different way by combining elements in a new pattern or proposing alternative solutions based on the application of knowledge and understanding. Evaluate: Students develop, argue and defend opinions based on what they know and comprehend after making an analysis; students present and defend opinions by making judgments about information; students validate ideas or quality of work based on a set of criteria. Mathematics Vertical Team, May, 2007 ii The Content Strands of Mathematics* *Most of the ideas and definitions in the “Content Strands of Mathematics” portion of this document have been quoted or paraphrased from The Principles and Standards for School Mathematics (NCTM, 2000). Number and Operations The Number and Operations Strand involves deep and fundamental understanding of, and proficiency with counting, numbers, and arithmetic, as well as an understanding of number systems and their structures. The concepts and algorithms of arithmetic are part of number and operations, as are the properties and characteristics of the classes of numbers that form the beginnings of number theory. Central to these ideas is the development of number sense, understanding numbers, ways of representing numbers, relationships among numbers, and number systems. Data Analysis and Probability Students should learn how to collect data, organize their own or other’s data, and display the data in graphs and charts that will be useful in answering their questions. This strand also includes learning some methods for analyzing data and making inferences and conclusions from data. The basic concepts and applications of probability are also addressed, with an emphasis on the way that probability and data analysis are related. To understand the fundamentals of statistical ideas, students must work directly with data. This emphasis allows students to meet new ideas and procedures as they progress through the grades, and make a number of important connections among ideas and procedures from number, algebra, measurement, and geometry. Work in data analysis and probability offers a natural way for students to connect mathematics with other content areas and with experiences in their daily lives. Geometry and Measurement Through the study of geometry, students will learn about geometric shapes and structures and how to analyze their characteristics and relationships. Spatial visualization-building and manipulating mental representations of two- and three-dimensional objects and perceiving an object from the different perspectives is an important aspect of geometric thinking. Geometry is a natural place for the development of students’ reasoning and justification skills, culminating in the work with proof in the secondary grades. Geometric modeling and spatial reasoning offer ways to interpret and describe physical environments and can be important tools in problem solving. Measurement is the assignment of a numerical value to an attribute of an object. Understanding what a measurable attribute is and becoming familiar with the units and processes that are used in measuring attributes is a major emphasis in this strand. Students should become proficient in using measurement tools, techniques, and formulas in a range of situations involving measuring and comparing. At more sophisticated levels, measurement involves assigning Mathematics Vertical Team, May, 2007 iii a number to a characteristic of a situation, as is done by the consumer price index. The study of measurement offers the opportunity for learning and applying other mathematics, including number operations, geometric ideas, statistical concepts, and notions of function. It highlights connections within mathematics and between mathematics and other content areas. Patterns and Algebra Algebra has its historical roots in the study of general methods for solving equations. The Algebra Strand emphasizes relationships among quantities, including functions, ways of representing mathematical relationships, and the analysis of change. Functional relationships can be expressed by using symbolic notation, which allows complex mathematical ideas to be expressed succinctly and allows change to be analyzed efficiently. Understanding change is fundamental to understanding functions and to understanding many ideas in our world. Today, the methods and ideas of algebra support mathematical work in many areas, for example, distribution and communication networks, laws of physics, population models, and statistical results can all be represented in the symbolic language of algebra. The K-12 Mathematics Enduring Understandings as they connect to each of the Content Strands and the Grade Level Expectations throughout the Mathematics Curriculum Matrix are outlined below. Mathematics Vertical Team, May, 2007 iv Number and Operations Number and Operations, Concept 1 K-12 Enduring Understanding: Relationships among numbers and number systems form the foundations of number sense and mathematical communication. Grade Band Expectations In grade band K-2: Develop the ability to deal with numbers mentally and to use number sense to reason with numbers in complex ways In grade band 3-5: Develop strategies for judging the relative size of numbers, identify classes of numbers and examine their properties In grade band 6-8: Use strategies to build fluency and extend knowledge of the number system In grade band 9-12: Develop a full understanding of the system of real numbers and use their understanding to explore new systems Number and Operations, Concept 2 K-12 Enduring Understanding: Patterns and relationships among operations are essential to making estimates and computing fluently. Grade Band Expectations: In grade band K-2: Understand the meaning of, and relationship between addition and subtraction to compute fluently In grade band 3-5: Understand the meaning of, and relationships between addition and subtraction, and multiplication and division In grade band 6-8 : Investigate the properties and obtain computational fluency within the real number system In grade band 9-12 : Reason whether a problem calls for an estimate or exact answer, extend understanding of operations to number systems that are new to students, and select a suitable method of computation Mathematics Vertical Team, May, 2007 v Data Analysis and Probability Data Analysis and Probability, Concept 1 K-12 Enduring Understanding: Data can be collected, organized, and displayed in purposeful ways. Grade Band Expectations In grade band K-2: Pose questions, gather, and use various methods to represent data about themselves and their surroundings In grade band 3-5: Collect, represent, and investigate data and how data collection methods affect the nature of the data set In grade band 6-8: Formulate questions, design studies, collect relevant data, and create and use appropriate graphical representations of data In grade band 9-12: Know the characteristics and differences of well designed studies and the meaning and types of inferences that can be drawn from measurement data Data Analysis and Probability, Concept 2 K-12 Enduring Understanding: Various statistical methods can be used to observe, analyze, predict, and make inferences about data. Grade Band Expectations: In grade band K-2: Describe parts of the data and a set of data to determine what the data show In grade band 3-5: Describe and compare related data sets, their distributions, and measures of center In grade band 6-8: Discuss and understand the correspondence between data sets and their graphic representations, and find, use, and interpret their measures of central tendency In grade band 9-12: Graphically display univariate and bivariate data and understand the implications of its characteristics Mathematics Vertical Team, May, 2007 vi Data Analysis and Probability, Concept 3 K-12 Enduring Understanding: : Mathematical models are used to predict and make inferences about data. Grade Band Expectations: In grade band K-2: Discuss events related to students’ experiences as likely or unlikely In grade band 3-5: Propose and justify conclusions and predictions that are based on data and design studies to further investigate the conclusions or predictions In grade band 6-8: Use observations about differences between two or more samples to make conjectures and develop new questions about the populations from which they were taken In grade band 9-12: Use simulations to explore the variability of sample statistics from a known population and construct sampling distributions Data Analysis and Probability, Concept 4 K-12 Enduring Understanding: Probability and data analysis can be used to make predictions Grade Band Expectations: In grade band K-2: Develop and evaluate inferences and predictions that are based on data In grade band 3-5: Describe and discuss the degree of likelihood of events and predict the probability of outcomes of simple experiments In grade band 6-8: Use a basic understanding of probability to make and test conjectures about the results of experiments and simulations In grade band 9-12: Understand the concepts of sample space and probability distribution, use simulations, and compute and interpret expected value Mathematics Vertical Team, May, 2007 vii Geometry and Measurement Geometry and Measurement, Concept 1 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Grade Band Expectations: In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming and classifying geometric objects In grade band 9-12: Analyze characteristics and properties of geometric shapes and develop mathematical arguments about these shapes in applied settings in authentic situations Geometry and Measurement, Concept 2 K-12 Enduring Understanding: Spatial relationships can be described using coordinate geometry and other representational systems. Grade Band Expectations: In grade band K-2: Describe, name, and interpret relative positions, directions, and distances in space In grade band 3-5: Use a coordinate system to aid in describing location and movement in all four quadrants of the Cartesian plane In grade band 6-8: Explore and represent the properties of shapes using coordinate geometry formulas In grade band 9-12: Investigate and use Cartesian coordinates and other coordinate systems to analyze geometric situations Mathematics Vertical Team, May, 2007 viii Geometry and Measurement, Concept 3 K-12 Enduring Understanding: Transformations, symmetry, and spatial reasoning can be used to analyze and model mathematical situations. Grade Band Expectations: In grade band K-2: Develop an understanding of transformations and symmetry with shapes In grade band 3-5: Identify symmetry and congruency, and describe the results of various transformations of plane figures In grade band 6-8: Create and quantify the results of various transformations, including dilation In grade band 9-12: a. Understand and represent translations and reflections, rotations, and dilations of objects in the plane by using sketches, coordinates, vectors, function notation, and matrices b. Use various representations to help understand the effects of simple transformations and their compositions Geometry and Measurement, Concept 4 K-12 Enduring Understanding: Attributes of objects can be measured using processes and quantified units, using appropriate techniques, tools, and formulas. Grade Band Expectations: In grade band K-2: Understand attributes of measurement by directly comparing objects, and selecting an appropriate unit and tools In grade band 3-5: Develop and deepen understanding of what it means to measure an object: identify an attribute to be measured, choose an appropriate unit, and compare that unit to the object being measured In grade band 6-8: Become proficient in selecting the appropriate size and type of unit for a given measurement situation, including length, area and volume In grade band 9-12: Apply appropriate technology, and understand the limitations; make reasonable estimates and accurate predictions about measurement Mathematics Vertical Team, May, 2007 ix Patterns and Algebra Patterns and Algebra, Concept 1 K-12 Enduring Understanding: Patterns, relations, and functions can be recognized and understood mathematically. Grade Band Expectations: In grade band K-2: Recognize, describe, and extend patterns, and sort and classify objects In grade band 3-5: Investigate numerical and geometric patterns and express them mathematically in words and symbols In grade band 6-8: Investigate patterns that arise when there is a rate of change In grade band 9-12: Create and use tabular, symbolic, graphical, and verbal representations and analyze and understand patterns, relations, and functions Patterns and Algebra, Concept 2 K-12 Enduring Understanding: Situations and structures can be represented, modeled, and analyzed using algebraic symbols. Grade Band Expectations: In grade band K-2: Illustrate and model general principles and properties of operations In grade band 3-5: Investigate, describe, and represent various rates of change In grade band 6-8: Solve problems and understand that relationships among quantities can often be expressed symbolically and represented in more than one way In grade band 9-12: Fluently manipulate algebraic expressions by combining them and re-expressing them in alternative forms, including identification and selection of relevant features in applications of real-world situations Mathematics Vertical Team, May, 2007 x Patterns and Algebra, Concept 3 K-12 Enduring Understanding: Change, in various contexts, both quantitative and qualitative, can be identified and analyzed. Grade Band Expectations: In grade band K-2: Describe change both qualitatively and quantitatively In grade band 3-5: Propose and justify conclusions and predictions that are based on data and design studies to further investigate the conclusions or predictions In grade band 6-8: Use graphs to analyze the nature of changes in quantities in linear relationships In grade band 9-12: Approximate and interpret rates of change from graphical and numerical data Mathematics Vertical Team, May, 2007 xi Bibliography Balanced Assessment—Elementary Grades Assessment. (1999). Dale Seymour Publications. DuFour, Robert; Eaker, R.; & DuFour, Rebecca (Editors). (2005). On Common Ground: The Power of Professional Learning Communities. Erickson, L. (2006–-not yet published). Concept-Based Curriculum and Instruction for the Thinking Classroom. Erickson, L. (1998). Concept-based Curriculum and Instruction: Teaching Beyond the Facts. Erickson, L. (1994). Stirring the Head, Heart, and Soul: Redefining Curriculum and Instruction. Lappan, G.; Fey, J.; Fitzgerald, W.; Friel, S.; & Phillips, E. D. (Editors). (2004). Connected Mathematics, shapes and designs, two-dimensional geometry. Marzano, R. (2004). Building Background Knowledge for Academic Achievement: Research on What Works in Schools. Marzano, R. (2003). What Works in Schools: Translating Research into Action. Alexandria, VA: Association for Supervision and Curriculum Development. Marzano, R., Pickering, D., & Pollock, J. (2001). Classroom Instruction that Works: Research-based Strategies for Increasing Student Achievement. Alexandria, VA: Association for Supervision and Curriculum Development. Marzano, R. (2000). Designing a New Taxonomy of Educational Objectives. McTighe, J., Seif, E., & Wiggins, G. (2004). You can teach for meaning. Educational Leadership, 62(1), 26-30. National Council of Teachers of Mathematics. (2005). Mathematics Assessment Sampler, Grades 3-5. Reston, VA. National Council of Teachers of Mathematics. (2005). Mathematics Assessment Sampler, Grades 6-8. Reston, VA. National Council of Teachers of Mathematics. (2001). Navigating Through Geometry in Grades 3-5. Reston, VA. National Council of Teachers of Mathematics. (2000). Principles and Standards for School Mathematics. Reston, VA. Mathematics Vertical Team, May, 2007 xii Russell, S. J.; Clements, D.; & Sarama, J. (1998). Investigations in Number, Data, and Space, Quilt squares and block towns. Stiggins, R. J., Arter, J. A., Chappius, J., & Chappius, S.. (2004). Classroom Assessment for Student Learning: Doing it right – using it well. Tomlinson, Carol Ann (2001). How to Differentiate Instruction in Mixed-Ability Classrooms, 2nd Edition. Tomlinson, Carol Ann. (1999) The Differentiated Classroom: Responding to the Needs of All Learners. Wiggins, G. & McTighe, J. (1998). Development. Understanding by Design. Alexandria, VA: Mathematics Vertical Team, May, 2007 Association for Supervision and Curriculum xiii K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade K In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • • • Two-dimensional shapes help them represent and describe their world. Geometric figures can be classified by shape. Two- and threedimensional shapes can be combined to make new shapes. Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Identify Shapes: Give students a sheet with a circle, square, triangle, and rectangle drawn on it. Point to a shape and ask, “What is this?” Do this for all shapes. If the student cannot name shapes, follow up by asking the student to “Point to a circle.” Do this for all four shapes. Application/Analysis Level: • “Sort by Attributes” (ACAP): Give a set of 10 attribute blocks, all the same color and thickness. Use 5 different shapes and at least 2 different sizes. Ask the students, “How can you sort these into piles that belong together?” If they do not begin to sort within a minute say, “Think about how they are alike or different.” Do not give prompts to sort by shape or size. Vocabulary triangle square rectangle circle side corner larger smaller same/equal Synthesis/Evaluation Level: • Using the sort created above, ask the student: 1. How are the blocks in this pile alike? 2. How are the blocks in this pile different from the other pile? SOL: K.11 The student will identify, describe, and draw two-dimensional (plane) geometric figures (circle, triangle, square, and rectangle). K.13 The student will compare the size (larger, smaller) and shape of plane geometric figures (circle, triangle, square, and rectangle). Communication Reasoning and Justification Concept 1 11 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 1 In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • Vocabulary used to explain their strategies to sort and/or group plane geometric figures Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Give students a sheet with a triangle, square, rectangle, and circle on it. Tell students to: color all circles red or color all triangles blue. Vocabulary triangle square rectangle Application/Analysis Level: “Shape Cards” (Quilt Squares and Block Towns, Investigations in Data, Number and Space) (Attachment A.1) • Cut out the shape cards and sort them into two or more groups. • Glue them onto a piece of paper. • Label each group. Synthesis/Evaluation Level: • Build a structure using 3 or 4 Geoblocks. Draw what you made. Rubric: Advanced circle side corner square corner two-dimensional three-dimensional • Student accurately creates a 2-D representation of the 3-D shapes used in block structure Proficient • Student attempts to show size and thickness in representation • Student is able to describe characteristics of the Geoblocks Near Proficient • Student uses 3 or 4 blocks • Student represents each block in the structure by drawing only 1 face of that block (2-D) • Student effectively shows how many blocks are arranged Needs Improvement • Student uses incorrect number of blocks • Student does not distinguish individual block (may draw outline of whole construction) • Student is unable to show how blocks are arranged SOL: 1.16 The student will draw, describe, and sort plane geometric figures (triangle, square, rectangle, and circle) according to number of sides, corners, and square corners. Supporting SOL: 1.17 The student will identify and describe objects in his/her environment that depict plane geometric figures (triangle, rectangle, square, and circle). Communication Reasoning and Justification Concept 1 12 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 2 In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words Essential Understandings All students will understand: • • • Differences and similarities between twoand three-dimensional shapes. Three-dimensional figures can be identified by the number of edges, faces, corners, and by the shape of their faces. Similarities between everyday objects and 3dimensional figures Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Tell students to number 1 – 3 on a piece of paper. Ask the students to find an example of a cylinder, a sphere, and a cube in the classroom, and draw and label what they found. Vocabulary solid rectangular solid square pyramid sphere Application/Analysis Level: • Give students solid figures and ask them to sort them into groups. Have students explain their rationalization. cylinder cone face Synthesis/Evaluation Level: “Making a Shed” (Balanced Assessment, Elementary Grades Assessment) (Attachment A.2) • Give students “Making a Shed”. Ask the students to make a replication of the shed using solid figures. The students need to explain why their model matches the 2-dimensional version using geometric language. base edge corner plane figure two-dimensional three-dimensional SOL: 2.20 2.22 The student will identify, describe, and sort three-dimensional (solid) concrete figures, including a cube, rectangular solid (prism), square pyramid, sphere, cylinder, and cone, according to the number and shape of the solid’s faces, edges, and corners The student will compare and contrast plane and solid geometric shapes (circle/sphere, square/cube, and rectangle/rectangular solid). Communication Reasoning and Justification Concept 1 13 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 3 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • • • Lines are composed of line segments and points. Two-dimensional shapes can be described by the number of sides (line segments), corners (angles), and square corners. Three-dimensional shapes can be described by the number of faces, edges, corners, square corners, and by the shape of faces. Relationships between 2- and 3dimensional figures (circle/sphere, square/cube, triangle/pyramid, and rectangle/rectangular solid). Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: • Show students a solid figure. Answer the following questions: 1. What is the name of this figure? 2. What shapes are its faces? 3. How many faces does it have? 4. How many edges does it have? Application/Analysis Level: • Give students pipe cleaners and clay. Build a solid that has 3 rectangular faces and 2 triangular faces. Draw their figure. Answer these questions about their figures: 1. What is the name of this figure? 2. How many edges does your figure have? 3. How many corners does your figure have? 4. How many line segments does your figure have? Synthesis/Evaluation Level: • Give students pipe cleaners and clay. Ask students, “Given two rectangles, what kinds of other shapes can you add to make a 3-dimensional figure? Make as many different solids as you can and label them. How do you know these are all the solids that can be made?” Vocabulary line point line segment angle face corner square corner edge solid cube cylinder cone rectangular solid sphere square pyramid SOL: 3.18 The student will analyze two-dimensional (plane) and three-dimensional (solid) geometric figures (circle, square, rectangle, triangle, cube, rectangular solid [prism], square pyramid, sphere, cone, and cylinder) and identify relevant properties, including the number of corners, square corners, edges, and the number and shape of faces, using concrete models. 3.19 The student will identify and draw representations of line segments and angles, using a ruler or straightedge. Supporting Skills and Processes: Name 2- and 3-dimensional figures based on a picture or a written description. Sort 3-dimensional figures. Identify and draw lines, points, angles, and line segments. Communication Reasoning and Justification Concept 1 14 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 4 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • Points, lines, line segments, and rays are fundamental components of noncircular geometric figures. The shortest distance between two points on a flat surface is a line segment. Assessment Samples – SOL/Blooms Vocabulary Knowledge/Comprehension Level: • Which of the following letters have two parallel line segments? A L N V point line line segment Z ray Application/Analysis Level: • Describe how shape A is different from shapes B and C. angle two-dimensional figure plane • • • Lines in a plane either intersect or are parallel. Perpendicularity is a special case of intersection. Students will identify real-world situations that illustrate parallel, intersecting, and perpendicular lines. Students will understand that 2dimensional (plane) figures are unique in their defining properties. parallel intersect / intersection perpendicular circle polygon A B C triangle quadrilateral square Synthesis/Evaluation Level: • Create a drawing of a parallelogram that is composed of a square and two congruent right triangles. Now create another drawing of a parallelogram (also composed of a square and two congruent, right triangles) which is not similar to the first drawing you did. Based on what you know about these polygons, explain why both of these drawings are parallelograms. rectangle parallelogram rhombus three-dimensional figure sphere cube Communication Reasoning and Justification Concept 1 15 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 4 rectangular solid (prism) cylinder cone face edge vertex base SOL: 4.14 The student will investigate and describe the relationships between and among points, lines, line segments, and rays. 4.15 The student will a) identify and draw representations of points, lines, line segments, rays, and angles, using a straightedge or ruler; and b) describe the path of shortest distance between two points on a flat surface. 4.16 The student will identify and draw representations of lines that illustrate intersection, parallelism, and perpendicularity. 4.17 a) The student will analyze and compare the properties of two-dimensional (plane) geometric figures (circle, square, rectangle, triangle, parallelogram, and rhombus) and three-dimensional (solid) geometric figures (sphere, cube, and rectangular solid [prism]). Communication Reasoning and Justification Concept 1 16 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 5 In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties Essential Understandings All students will understand: • • • The defining properties and symmetry of various plane figures are unique. Simple plane figures can be combined to make more complicated figures; and, complicated figures can be subdivided into simple plane figures. Solid figures are unique in their defining properties. Assessment Samples – SOL/Blooms Knowledge/Comprehension Level: 1. Choose four 3-dimensional figures from the set of geometric solids, and list the characteristics for each figure. Vocabulary parallel perpendicular side 2. Using your ruler, draw a polygon that satisfies these conditions. A. The polygon has only two right angles. B. The polygon has only two congruent sides. C. Label the right angles and the two congruent sides. angle vertex diagonal Application/Analysis Level: • Alan says that if a figure has four sides, it must be a rectangle. Gina does not agree. Draw two figures that show Gina is correct. Explain how your figure supports Gina’s belief that each four-sided figure is not necessarily a rectangle. similar Synthesis/Evaluation Level: • “Mystery Rings” (Navigating Through Geometry in Grades 3-5, NCTM) (Attachment A.5) triangle congruent two-dimensional polygon right triangle acute triangle obtuse triangle scalene triangle isosceles triangle equilateral triangle quadrilateral rectangle square parallelogram kite Communication Reasoning and Justification Concept 1 17 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 5 trapezoid rhombus three-dimensional face edge pyramid prism cylinder cone cube SOL: 5.15 The student, using two-dimensional (plane) figures (square, rectangle, triangle, parallelogram, rhombus, kite, and trapezoid) will a) recognize, identify, describe, and analyze their properties in order to develop definitions of these figures; b) identify and explore congruent, non-congruent, and similar figures; c) investigate and describe the results of combining and subdividing shapes. 5.16 The student will identify, compare, and analyze properties of three-dimensional (solid) geometric shapes (cylinder, cone, cube, square, pyramid, and rectangular prism). Supporting 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. 5.9 The student will identify and describe the diameter, radius, chord, and circumference of a circle. 5.13 The student will measure and draw right, acute, and obtuse angles and triangles, using appropriate tools. 5.14 The student will classify angles and triangles as right, acute, or obtuse. Supporting Skills and Processes: Construct models of 2- and 3-dimensional figures using a variety of resources to include technology and manipulatives. Communication Reasoning and Justification Concept 1 18 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 6 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • • An angle is two rays diverging from a common point. Names for angles and triangles by defining referents and characteristics. Plane figures are identified, classified, and described by their similarities, differences, and defining properties. • The meaning of congruence. • The attributes of perpendicular lines and a bisector. • • Assessment Samples – SOL/Blooms Vocabulary Use “Shapes and Designs”, Connected Mathematics (Attachment A.6) for the following: vertex Knowledge/Comprehension Level: • What name could you give A, H, U, and R? line ray line segment triangle Application/Analysis Level: • What are the features of a polygon? An angle? • Can you make a distinction between a trapezoid and a parallelogram? Explain your thinking. Synthesis/Evaluation Level: • The figures I, L, and V can be grouped together, but X would not belong in the group. Explain why. • The figures U, S, and E can be grouped together, but G would not belong in the group. Explain why. obtuse acute right isosceles equilateral quadrilaterals rhombus trapezoid How to interpret a picture of a solid figure from a twodimensional diagram and vice versa. parallelogram square rectangle pentagon The decomposition of a solid figure into a discrete set of surfaces. hexagon heptagon octagon polygon congruent Communication Reasoning and Justification Concept 1 19 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 6 bisect rectangular prism cylinder pyramid two-dimensional three-dimensional surface edge angle ruler protractor degrees two-dimensional model (net) SOL: 6.13 The student will a) estimate angle measures, using 45°, 90°, and 180° as referents, and use the appropriate tools to measure the given angles; and b) measure and draw right, acute, and obtuse angles and triangles. 6.14 The student will identify, classify, and describe the characteristics of plane figures, describing their similarities, differences, and defining properties. 6.15 The student will determine congruence of segments, angles, and polygons by direct comparison, given their attributes. Examples of noncongruent and congruent figures will be included. 6.16 The student will construct the perpendicular bisector of a line segment and an angle bisector. 6.17 The student will sketch, construct models of, and classify solid figures (rectangular prism, cone, cylinder, and pyramid). Communication Reasoning and Justification Concept 1 20 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 7 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • • • • Quadrilaterals can be classified according to the attributes of their sides and/or angles. A quadrilateral can belong to one or more subsets of the set of quadrilaterals and has all of the defining attributes of the subset. The meaning of prefixes associated with the number of sides of a polygon. Assessment Samples – SOL/Blooms Vocabulary Knowledge/Comprehension Level: • Which of the following characteristics must be present in order to classify a quadrilateral as a parallelogram? a. exactly one pair of equal adjacent sides b. exactly one pair of parallel sides c. a diagonal as an axis of symmetry d. two equal adjacent angles e. two pairs of parallel sides quadrilateral Application/Analysis Level: “Geometric Shapes” (NCTM Mathematics Assessment Sampler, Grades 6-8) (Attachment A.7) diagonal parallelogram rectangle square rhombus trapezoid perpendicular polygons Similar geometric figures have the same shape but may have different sizes. Five geometric terms are listed in alphabetical order: equilateral triangle, rhombus, right isosceles triangle, square, trapezoid. • Which one of the geometric terms listed above most accurately describes shape A? Explain how you know that is your answer. • Repeat the question above for shapes B, C, and D. How ratios and proportions can be used to determine the length of something that cannot be measured directly. Synthesis/Evaluation Level • Luis claimed that a figure must be a square if it is a parallelogram and has all its sides the same length. Is Luis correct? Defend your decision with a written argument. pentagon hexagon heptagon octagon nonagon decagon sides triangle proportion similar congruent regular polygon corresponding angles Communication Reasoning and Justification Concept 1 21 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 7 corresponding sides angle ruler protractor degrees straight angle two-dimensional model (net) SOL: 7.9 The student will compare and contrast the following quadrilaterals: parallelogram, rectangle, square, rhombus, and trapezoid. Deductive reasoning and inference will be used to classify quadrilaterals. 7.10 The student will identify and draw the following polygons: pentagon, hexagon, heptagon, octagon, nonagon, and decagon. 7.11 The student will determine if geometric figures, quadrilaterals and triangles, are similar and write proportions to express the relationships between corresponding parts of similar figures. Communication Reasoning and Justification Concept 1 22 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grade 8 In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming, and classifying geometric objects Essential Understandings All students will understand: • • Assessment Samples – SOL/Blooms Use the following figure to answer the questions below. vertical supplementary Pairs of angles are named by their defining attributes. A three-dimensional object can be represented as a two-dimensional model that represents views of the object from different perspectives. Vocabulary 3 1 3 1 complementary Building Base Plan 1 front Knowledge/Comprehension Level: • Using your cubes, make a model of the building shown in the base plan above. Application/Analysis Level: • A set of building plans includes the base outline, the front view, and the right view. Sketch a full set of building plans on grid paper for a new building of your design with the same base outline as the building represented above. angle measure draw intersecting protractors angle ruler straight angle degrees three-dimensional figures top side bottom Synthesis/Evaluation Level: • Explain how your new building can have the same set of building plans as the original building even though your new building has a different base plan. isometric geometric solids two-dimensional model (net) polyhedron polygon SOL: 8.6 The student will verify by measuring and describe the relationships among vertical angles, supplementary angles, and complementary angles and will measure and draw angles of less than 360°. 8.9 The student will construct a three-dimensional model, given the top, side, and/or bottom views. Communication Reasoning and Justification Concept 1 23 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grades 9-12 In grade band 9-12: Analyze characteristics and properties of geometric shapes and develop mathematical arguments about these shapes in applied settings in authentic situations Essential Understandings All students will understand: • Intersecting lines form angles with measurable characteristics, relationships and properties. Assessment Samples – SOL/Blooms A clothing designer must carefully measure segments and angles to create a pattern. The figure below is part of a clothing design pattern. All measurements are in centimeters. Vocabulary parallel perpendicular point line plane • • • • • The interior and exterior angles of polygons have measurable characteristics, relationships, and patterns. Two- and three-dimensional shapes can be constructed with a compass, straight-edge, patty-paper, and various technology applications. Congruency and similarity in polygons have real-life application in a variety of areas including art, architecture, and sciences. Congruency and similarity can be demonstrated using logical reasoning. Polygons have defining characteristics with their sides, angles and diagonals. angle polygon congruent similar Knowledge/Comprehension Level: • Based on the given information, what do you know about angles B and E.? Why? Application/Analysis Level: • What do you know about triangle ABC and triangle DEC. Justify by using a two column proof. • Find the measurement of CD. Support your answer using geometric concepts. • Find the measurement of FE, FC, and BC. Justify. Synthesis/Evaluation Level: • Determine the perimeter of triangle ABC and triangle DEC. How is this relevant to our clothing designer? • If the design is to be repeated twice, what is the total area of the fabric needed? side diagonal Pythagorean Theorem triangle arc secant chord tangent circle diameter radius perimeter area Communication Reasoning and Justification Concept 1 24 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand • • The Pythagorean Theorem is essential for solving triangle problems. Grades 9-12 The regular tetrahedron shown in figure(a) has grown a regular tetrahedron (with a side half as long) on each of its faces in figure (b). Figure (c) shows the new solid (b) in the process of growing tetrahedra on its faces in the same way. Many relationships exist between and among angles, arcs, secants, chords, and tangents of a circle. • Three-dimensional figures are a part of everyday life. • Modeling is an overall part of design for products and structures. • Perimeter, area, surface area and volume are all measurable characteristics of 2- and 3dimensional shapes. • Formulas can be derived to generalize perimeter, area, surface area and volume. Communication surface area volume quadrilateral iterations tetrahedron/tetrahedra Knowledge/Comprehension Level: • Complete the tables below. Reasoning and Justification Concept 1 25 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Geometry and Measurement Strand Grades 9-12 Application/Analysis Level: • Determine the total surface area of the 20th iteration? • Determine the total surface area of the nth iteration as • • • n → ∞? th Determine the total volume of the 20 iteration? Determine the total volume of the nth iteration as n → ∞ ? Compare the total surface area and the total volume as n → ∞. Synthesis/Evaluation Level: • Create a similar model using a cube, and then construct a table similar to the tetrahedron. SOL: G.5 The student will a) investigate and identify congruence and similarity relationships between triangles; and b) prove two triangles are congruent or similar, given information in the form of a figure or statement, using algebraic and coordinate as well as deductive proofs. G.8: The student will a) investigate and identify properties of quadrilaterals involving opposite sides and angles, consecutive sides and angles, and diagonals; b) prove these properties of quadrilaterals, using algebraic and coordinate methods as well as deductive reasoning; and c) use properties of quadrilaterals to solve practical problems. Supporting SOL: G.1 The student will construct and judge the validity of a logical argument consisting of a set of premises and a conclusion. This will include a) identifying the converse, inverse, and contrapositive of a conditional statement; b) translating a short verbal argument into symbolic form; c) using Venn diagrams to represent set relationships; and d) using deductive reasoning, including the law of syllogism. G.4 The student will use the relationships between angles formed by two lines cut by a transversal to determine if two lines are parallel and verify, using algebraic and coordinate methods as well as deductive proofs. G.6 The student, given information concerning the lengths of sides and/or measures of angles, will apply the triangle inequality properties to determine whether a triangle exists and to order sides and angles. These concepts will be considered in the context of practical situations. Supporting Skills and Processes: Knowledge and understanding of the properties and relationships among basic two- and three-dimensional shapes; use of deductive reasoning to establish or refute conjectures. Communication Reasoning and Justification Concept 1 26 Geometry and Measurement Strand Grade 1 Assessment Attachment A.1 Shape Cards Cut out the shape cards. Sort them into two or more groups and glue them onto a piece of paper. Label each group. Rubric: Advanced Proficient Nearing Proficient Needs Improvement • • • • • • Student sorts into 3 or more categories Student sorts by attributes such as number of sides, straight/curved sides, and number of corn Student is able to flexibly regroup the shapes Student uses all shapes and sorts them into distinct categories Student accurately labels each category Student may be unable to use all 9 shapes but is able to sort some shapes into distinct groups • • • Student is unable to use all 9 shapes Student is unable to sort into distinct groups Student is unable to label or identify the attribute Communication Reasoning and Justification Concept 1 27 Geometry and Measurement Strand Grade 2 Making a Shed Communication Assessment Attachment A.2 Reasoning and Justification Concept 1 28 Geometry and Measurement Strand Grade 5 Communication Assessment Attachment A.5 Reasoning and Justification Concept 1 29 Geometry and Measurement Strand Grade 6 Shapes and Designs Assessment Attachment A.6 Knowledge/Comprehension Level • What name could you give A, H, U, and R? Application/Analysis Level • What are the features of a polygon? An angle? • Can you make a distinction between a trapezoid and a parallelogram? Explain your thinking. Synthesis/Evaluation Level • The figures I, L, and V can be grouped together, but X would not belong in the group. Explain why. • The figures U, S, and E can be grouped together, but G would not belong in the group. Explain why. Communication Reasoning and Justification Concept 1 30 Geometry and Measurement Strand Grade 7 Geometric Shapes Communication Assessment Attachment A.7 Reasoning and Justification Concept 1 31 Appendix Mathematics Vertical Team, May, 2007 Appendix Guide Lifelong-Learner Standards ………………………………….……………….………………….. Assessment in the Mathematics Curriculum Matrix ………………………………………… ii ……………………………………………….. ii …………………………………………………………. iii Bloom’s Taxonomy of the Cognitive Domain The Content Strands of Mathematics i Mapping the Mathematics Enduring Understandings to the Mathematics Content Strands Number and Operations …………………………………………….. …………………… Data Analysis and Probability ………………………………………. …………………… Geometry and Measurement ……………………………………………………………. Patterns and Algebra ………………………………………………....…………………… v vi ix xi Bibliography xiii ……………………………………………………………………………………..…. Mathematics Vertical Team, May, 2007 Lifelong-Learner Standards The Division has identified 12 Lifelong-Learner Standards that set expectations for how students develop a wide variety of knowledge, understanding, and skills. These standards articulate the necessary components of lifelong learning that allow all students to succeed as members of a global community and in a global economy. The Lifelong-Learner Standards are overarching process-based standards, not discrete fact-based standards that can be addressed in a single lesson or even a single unit. These standards demand attention over time and across all disciplines (FQL, 2006). Lifelong-Learner Standards 1. Plan and conduct research; 2. Gather, organize, and analyze data, evaluate processes and products, and draw conclusions; 3. Think analytically, critically, and creatively to pursue new ideas, acquire new knowledge, and make decisions; 4. Understand and apply principles of logic and reasoning; develop, evaluate, and defend arguments; 5. Seek, recognize and understand systems, patterns, themes, and interactions; 6. Apply and adapt a variety of appropriate strategies to solve new and increasingly complex problems; 7. Acquire and use precise language to clearly communicate ideas, knowledge, and processes; 8. Explore and express ideas and opinions using multiple media, the arts, and technology; 9. Demonstrate ethical behavior and respect for diversity through daily actions and decision making; 10. Participate fully in civic life, and act on democratic ideals within the context of community and global interdependence; 11. Understand and follow a physically active lifestyle that promotes good health and wellness; and, 12. Apply habits of mind and metacognitive strategies to plan, monitor, and evaluate one’s own work. Mathematics Vertical Team, May, 2007 i Assessment in the Mathematics Curriculum Matrix The assessment section of the Mathematics Curriculum Matrix provides samples within the hierarchy of Bloom’s Taxonomy of the Cognitive Domain to provide teachers with a better understanding of the different levels of challenge required to meet the intent of a particular standard. These assessment samples are intended as examples to help a teacher focus on the level of questioning and performance needed for a student to gain deep understanding of a particular standard. There is not a specific assessment provided for all six levels of Bloom’s Taxonomy, but the assessment examples have been placed in three tiers of the domain to represent low level (Knowledge and Comprehension), middle level (Application and Analysis), and high level (Synthesis and Evaluation)cognitive demands. Bloom’s Taxonomy of the Cognitive Domain Knowledge: Students recall information; students exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. Comprehension: Students recognize what they know in context; students identify relationships between pieces of information; students demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions, and stating main ideas. Application: Students use what they know and comprehend in the performance of a skill; students solve problems applied to new situations by using acquired knowledge, facts, techniques, and rules in new ways. Analysis: Students draw conclusions from new data, making interpretations based on familiar patterns in what they know and comprehend; students examine and break information into parts by identifying motives or causes; students make inferences and find evidence to support generalizations. Synthesis: Students create a new work that demonstrates their ability to apply their knowledge, comprehension, and analysis of information in a student-generated product; students compile information together in a different way by combining elements in a new pattern or proposing alternative solutions based on the application of knowledge and understanding. Evaluate: Students develop, argue and defend opinions based on what they know and comprehend after making an analysis; students present and defend opinions by making judgments about information; students validate ideas or quality of work based on a set of criteria. Mathematics Vertical Team, May, 2007 ii The Content Strands of Mathematics* *Most of the ideas and definitions in the “Content Strands of Mathematics” portion of this document have been quoted or paraphrased from The Principles and Standards for School Mathematics (NCTM, 2000). Number and Operations The Number and Operations Strand involves deep and fundamental understanding of, and proficiency with counting, numbers, and arithmetic, as well as an understanding of number systems and their structures. The concepts and algorithms of arithmetic are part of number and operations, as are the properties and characteristics of the classes of numbers that form the beginnings of number theory. Central to these ideas is the development of number sense, understanding numbers, ways of representing numbers, relationships among numbers, and number systems. Data Analysis and Probability Students should learn how to collect data, organize their own or other’s data, and display the data in graphs and charts that will be useful in answering their questions. This strand also includes learning some methods for analyzing data and making inferences and conclusions from data. The basic concepts and applications of probability are also addressed, with an emphasis on the way that probability and data analysis are related. To understand the fundamentals of statistical ideas, students must work directly with data. This emphasis allows students to meet new ideas and procedures as they progress through the grades, and make a number of important connections among ideas and procedures from number, algebra, measurement, and geometry. Work in data analysis and probability offers a natural way for students to connect mathematics with other content areas and with experiences in their daily lives. Geometry and Measurement Through the study of geometry, students will learn about geometric shapes and structures and how to analyze their characteristics and relationships. Spatial visualization-building and manipulating mental representations of two- and three-dimensional objects and perceiving an object from the different perspectives is an important aspect of geometric thinking. Geometry is a natural place for the development of students’ reasoning and justification skills, culminating in the work with proof in the secondary grades. Geometric modeling and spatial reasoning offer ways to interpret and describe physical environments and can be important tools in problem solving. Measurement is the assignment of a numerical value to an attribute of an object. Understanding what a measurable attribute is and becoming familiar with the units and processes that are used in measuring attributes is a major emphasis in this strand. Students should become proficient in using measurement tools, techniques, and formulas in a range of situations involving measuring and comparing. At more sophisticated levels, measurement involves assigning Mathematics Vertical Team, May, 2007 iii a number to a characteristic of a situation, as is done by the consumer price index. The study of measurement offers the opportunity for learning and applying other mathematics, including number operations, geometric ideas, statistical concepts, and notions of function. It highlights connections within mathematics and between mathematics and other content areas. Patterns and Algebra Algebra has its historical roots in the study of general methods for solving equations. The Algebra Strand emphasizes relationships among quantities, including functions, ways of representing mathematical relationships, and the analysis of change. Functional relationships can be expressed by using symbolic notation, which allows complex mathematical ideas to be expressed succinctly and allows change to be analyzed efficiently. Understanding change is fundamental to understanding functions and to understanding many ideas in our world. Today, the methods and ideas of algebra support mathematical work in many areas, for example, distribution and communication networks, laws of physics, population models, and statistical results can all be represented in the symbolic language of algebra. The K-12 Mathematics Enduring Understandings as they connect to each of the Content Strands and the Grade Level Expectations throughout the Mathematics Curriculum Matrix are outlined below. Mathematics Vertical Team, May, 2007 iv Number and Operations Number and Operations, Concept 1 K-12 Enduring Understanding: Relationships among numbers and number systems form the foundations of number sense and mathematical communication. Grade Band Expectations In grade band K-2: Develop the ability to deal with numbers mentally and to use number sense to reason with numbers in complex ways In grade band 3-5: Develop strategies for judging the relative size of numbers, identify classes of numbers and examine their properties In grade band 6-8: Use strategies to build fluency and extend knowledge of the number system In grade band 9-12: Develop a full understanding of the system of real numbers and use their understanding to explore new systems Number and Operations, Concept 2 K-12 Enduring Understanding: Patterns and relationships among operations are essential to making estimates and computing fluently. Grade Band Expectations: In grade band K-2: Understand the meaning of, and relationship between addition and subtraction to compute fluently In grade band 3-5: Understand the meaning of, and relationships between addition and subtraction, and multiplication and division In grade band 6-8 : Investigate the properties and obtain computational fluency within the real number system In grade band 9-12 : Reason whether a problem calls for an estimate or exact answer, extend understanding of operations to number systems that are new to students, and select a suitable method of computation Mathematics Vertical Team, May, 2007 v Data Analysis and Probability Data Analysis and Probability, Concept 1 K-12 Enduring Understanding: Data can be collected, organized, and displayed in purposeful ways. Grade Band Expectations In grade band K-2: Pose questions, gather, and use various methods to represent data about themselves and their surroundings In grade band 3-5: Collect, represent, and investigate data and how data collection methods affect the nature of the data set In grade band 6-8: Formulate questions, design studies, collect relevant data, and create and use appropriate graphical representations of data In grade band 9-12: Know the characteristics and differences of well designed studies and the meaning and types of inferences that can be drawn from measurement data Data Analysis and Probability, Concept 2 K-12 Enduring Understanding: Various statistical methods can be used to observe, analyze, predict, and make inferences about data. Grade Band Expectations: In grade band K-2: Describe parts of the data and a set of data to determine what the data show In grade band 3-5: Describe and compare related data sets, their distributions, and measures of center In grade band 6-8: Discuss and understand the correspondence between data sets and their graphic representations, and find, use, and interpret their measures of central tendency In grade band 9-12: Graphically display univariate and bivariate data and understand the implications of its characteristics Mathematics Vertical Team, May, 2007 vi Data Analysis and Probability, Concept 3 K-12 Enduring Understanding: : Mathematical models are used to predict and make inferences about data. Grade Band Expectations: In grade band K-2: Discuss events related to students’ experiences as likely or unlikely In grade band 3-5: Propose and justify conclusions and predictions that are based on data and design studies to further investigate the conclusions or predictions In grade band 6-8: Use observations about differences between two or more samples to make conjectures and develop new questions about the populations from which they were taken In grade band 9-12: Use simulations to explore the variability of sample statistics from a known population and construct sampling distributions Data Analysis and Probability, Concept 4 K-12 Enduring Understanding: Probability and data analysis can be used to make predictions Grade Band Expectations: In grade band K-2: Develop and evaluate inferences and predictions that are based on data In grade band 3-5: Describe and discuss the degree of likelihood of events and predict the probability of outcomes of simple experiments In grade band 6-8: Use a basic understanding of probability to make and test conjectures about the results of experiments and simulations In grade band 9-12: Understand the concepts of sample space and probability distribution, use simulations, and compute and interpret expected value Mathematics Vertical Team, May, 2007 vii Geometry and Measurement Geometry and Measurement, Concept 1 K-12 Enduring Understanding: Characteristics, properties, and mathematical arguments about geometric relationships can be analyzed and developed using logical and spatial reasoning. Grade Band Expectations: In grade band K-2: Represent and compare 2- and 3-dimensional shapes through drawings, block construction, dramatizations, and words In grade band 3-5: Develop clarity and precision in describing properties of geometric objects and classifying into categories by properties In grade band 6-8: Investigate relationships of polygons by drawing, measuring, visualizing, comparing, transforming and classifying geometric objects In grade band 9-12: Analyze characteristics and properties of geometric shapes and develop mathematical arguments about these shapes in applied settings in authentic situations Geometry and Measurement, Concept 2 K-12 Enduring Understanding: Spatial relationships can be described using coordinate geometry and other representational systems. Grade Band Expectations: In grade band K-2: Describe, name, and interpret relative positions, directions, and distances in space In grade band 3-5: Use a coordinate system to aid in describing location and movement in all four quadrants of the Cartesian plane In grade band 6-8: Explore and represent the properties of shapes using coordinate geometry formulas In grade band 9-12: Investigate and use Cartesian coordinates and other coordinate systems to analyze geometric situations Mathematics Vertical Team, May, 2007 viii Geometry and Measurement, Concept 3 K-12 Enduring Understanding: Transformations, symmetry, and spatial reasoning can be used to analyze and model mathematical situations. Grade Band Expectations: In grade band K-2: Develop an understanding of transformations and symmetry with shapes In grade band 3-5: Identify symmetry and congruency, and describe the results of various transformations of plane figures In grade band 6-8: Create and quantify the results of various transformations, including dilation In grade band 9-12: a. Understand and represent translations and reflections, rotations, and dilations of objects in the plane by using sketches, coordinates, vectors, function notation, and matrices b. Use various representations to help understand the effects of simple transformations and their compositions Geometry and Measurement, Concept 4 K-12 Enduring Understanding: Attributes of objects can be measured using processes and quantified units, using appropriate techniques, tools, and formulas. Grade Band Expectations: In grade band K-2: Understand attributes of measurement by directly comparing objects, and selecting an appropriate unit and tools In grade band 3-5: Develop and deepen understanding of what it means to measure an object: identify an attribute to be measured, choose an appropriate unit, and compare that unit to the object being measured In grade band 6-8: Become proficient in selecting the appropriate size and type of unit for a given measurement situation, including length, area and volume In grade band 9-12: Apply appropriate technology, and understand the limitations; make reasonable estimates and accurate predictions about measurement Mathematics Vertical Team, May, 2007 ix Patterns and Algebra Patterns and Algebra, Concept 1 K-12 Enduring Understanding: Patterns, relations, and functions can be recognized and understood mathematically. Grade Band Expectations: In grade band K-2: Recognize, describe, and extend patterns, and sort and classify objects In grade band 3-5: Investigate numerical and geometric patterns and express them mathematically in words and symbols In grade band 6-8: Investigate patterns that arise when there is a rate of change In grade band 9-12: Create and use tabular, symbolic, graphical, and verbal representations and analyze and understand patterns, relations, and functions Patterns and Algebra, Concept 2 K-12 Enduring Understanding: Situations and structures can be represented, modeled, and analyzed using algebraic symbols. Grade Band Expectations: In grade band K-2: Illustrate and model general principles and properties of operations In grade band 3-5: Investigate, describe, and represent various rates of change In grade band 6-8: Solve problems and understand that relationships among quantities can often be expressed symbolically and represented in more than one way In grade band 9-12: Fluently manipulate algebraic expressions by combining them and re-expressing them in alternative forms, including identification and selection of relevant features in applications of real-world situations Mathematics Vertical Team, May, 2007 x Patterns and Algebra, Concept 3 K-12 Enduring Understanding: Change, in various contexts, both quantitative and qualitative, can be identified and analyzed. Grade Band Expectations: In grade band K-2: Describe change both qualitatively and quantitatively In grade band 3-5: Propose and justify conclusions and predictions that are based on data and design studies to further investigate the conclusions or predictions In grade band 6-8: Use graphs to analyze the nature of changes in quantities in linear relationships In grade band 9-12: Approximate and interpret rates of change from graphical and numerical data Mathematics Vertical Team, May, 2007 xi Bibliography Balanced Assessment—Elementary Grades Assessment. (1999). Dale Seymour Publications. DuFour, Robert; Eaker, R.; & DuFour, Rebecca (Editors). (2005). On Common Ground: The Power of Professional Learning Communities. Erickson, L. (2006–-not yet published). Concept-Based Curriculum and Instruction for the Thinking Classroom. Erickson, L. (1998). Concept-based Curriculum and Instruction: Teaching Beyond the Facts. Erickson, L. (1994). Stirring the Head, Heart, and Soul: Redefining Curriculum and Instruction. Lappan, G.; Fey, J.; Fitzgerald, W.; Friel, S.; & Phillips, E. D. (Editors). (2004). Connected Mathematics, shapes and designs, two-dimensional geometry. Marzano, R. (2004). Building Background Knowledge for Academic Achievement: Research on What Works in Schools. Marzano, R. (2003). What Works in Schools: Translating Research into Action. Alexandria, VA: Association for Supervision and Curriculum Development. Marzano, R., Pickering, D., & Pollock, J. (2001). Classroom Instruction that Works: Research-based Strategies for Increasing Student Achievement. Alexandria, VA: Association for Supervision and Curriculum Development. Marzano, R. (2000). Designing a New Taxonomy of Educational Objectives. McTighe, J., Seif, E., & Wiggins, G. (2004). You can teach for meaning. Educational Leadership, 62(1), 26-30. National Council of Teachers of Mathematics. (2005). Mathematics Assessment Sampler, Grades 3-5. Reston, VA. National Council of Teachers of Mathematics. (2005). Mathematics Assessment Sampler, Grades 6-8. Reston, VA. National Council of Teachers of Mathematics. (2001). Navigating Through Geometry in Grades 3-5. Reston, VA. National Council of Teachers of Mathematics. (2000). Principles and Standards for School Mathematics. Reston, VA. Mathematics Vertical Team, May, 2007 xii Russell, S. J.; Clements, D.; & Sarama, J. (1998). Investigations in Number, Data, and Space, Quilt squares and block towns. Stiggins, R. J., Arter, J. A., Chappius, J., & Chappius, S.. (2004). Classroom Assessment for Student Learning: Doing it right – using it well. Tomlinson, Carol Ann (2001). How to Differentiate Instruction in Mixed-Ability Classrooms, 2nd Edition. Tomlinson, Carol Ann. (1999) The Differentiated Classroom: Responding to the Needs of All Learners. Wiggins, G. & McTighe, J. (1998). Development. Understanding by Design. Alexandria, VA: Mathematics Vertical Team, May, 2007 Association for Supervision and Curriculum xiii