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Orange School District Algebra I Curriculum Guide 2011 Edition ___________________________________________________ _ Approved On: BOARD OF EDUCATION Patricia A. Arthur President Arthur Griffa Vice-President Members Rev. Reginald T. Jackson Stephanie Brown Eunice Y. Mitchell Maxine G. Johnson David Wright SUPERINTENDENT OF SCHOOLS Ronald Lee DEPUTY SUPERINTENDENT Dr. Paula Howard ADMINISTRATIVE ASSISTANT TO THE SUPERINTENDENT Belinda Scott-Smiley Curriculum and Instructional Services Operations/Human Resources BUSINESS ADMINISTRATOR Adekunle O. James DIRECTORS Barbara L. Clark, Special Services Candace Goldstein, Special Programs Candace Wallace, Curriculum & Testing Curriculum Contributors Courtney Harris-Lee Erica L. Stewart Orange School District Algebra I Table of Contents PHILOSOPHY……………………………………………………………………………………………………………………………….….4 PURPOSE & VISION ..……………………………………………………………………………………………………………………….4 STANDARDS ……………………..……………………………………………………………………………….…………………………..5 CURRICULUM GRADES 10-12 …………………………………….……………………………………………………………………..6 3 Orange School District Algebra I Philosophy Algebraic principles are the foundation of all mathematics. It is our belief that students can apply arithmetic concepts and use reasoning to solve problems with unknown variables. Algebra imitates life and we therefore believe that students who are successful in algebra will be able to apply skills in everyday decision-making. Purpose and Vision Through Algebra, students will learn strategic reasoning and procedural skills that will lead to a conceptual understanding of seemingly elusive context. 21st century technology requires that students be able to make hard things seem simple. Using this guide, students will move from the abstract to the concrete. 4 Orange School District Algebra I The following standards are addressed in Algebra I. 4.1 All students will develop number sense and will perform standard numerical operations and estimations on all types of numbers in a variety of ways 4.2 All students will develop spatial sense and the ability to use geometric properties, relationships, and measurement to model, describe, and analyze phenomena 4.3 All students will represent and analyze relationships among variable quantities and solve problems involving patterns, functions, and algebraic concepts and processes 4.4 All students will develop an understanding of the concepts and techniques of data analysis, probability, and discrete mathematics, and will use them to model situations, solve problems, and analyze and draw appropriate references from data 4.5 All students will use mathematical processes of problem solving, communication, connections, reasoning, representations, and technology to solve problems and communicate mathematical ideas. 3.2 All students will write in clear, concise, organized language that varies in content and form for different audiences and purposes 8.1 All students will use digital tools to access, manage, evaluate, and synthesize information in order to solve problems individually and collaboratively and to create and communicate knowledge. 9.2 Personal Financial Literacy: All students will develop skills and strategies that promote personal and financial responsibility related to financial planning, savings, investment, and charitable giving in the global economy. 5 Orange School District Algebra I STANDARDS: 4.1 All students will develop number sense and will perform standard numerical operations and estimations on all types of numbers in a variety of ways 4.2 All students will develop spatial sense and the ability to use geometric properties, relationships, and measurement to model, describe, and analyze phenomena 4.3 All students will represent and analyze relationships among variable quantities and solve problems involving patterns, functions, and algebraic concepts and processes 4.4 All students will develop an understanding of the concepts and techniques of data analysis, probability, and discrete mathematics, and will use them to model situations, solve problems, and analyze and draw appropriate references from data 4.5 All students will use mathematical processes of problem solving, communication, connections, reasoning, representations, and technology to solve problems and communicate mathematical ideas. KEY ELEMENTS What is the variable and how can it be used to describe patterns or represent unknowns? 1. 2. How does a graph on paper relate to a realistic situation encountered in everyday life? 3. What are the measures of central tendency and how do they help us analyze and utilize data? What is meant by a reasonable domain and range for a function relationship? 4. CONTENT (What Students should know) Understand the concept of function Identify important features of functions and other relations using symbolic and graphical methods Obtain information and draw conclusions from graphs of functions and other relations Describe and compare data using sets of summary statistics including measures of center and location including mean, mode, median, quartile, and percentile PERFORMANCE TARGETS Demonstrate the understanding of a function using problem solving. Evaluate a function at a given point in its domain Distinguish between functions and other relations defined symbolically. Assess the validity of a logical argument and give counterexamples to disprove a statement Describe a data set using data displays 6 Orange School District Algebra I KEY ELEMENTS How are mathematical operations performed on rational numbers, including order of operations and distributive property? How can random numbers be utilized to simulate and predict probabilities? How can multiplication help in computing permutations and probabilities? CONTENT (What Students should know) 1. Generate equivalent algebraic expressions involving polynomials and radicals; use algebraic properties to evaluate expressions 2. Construct logical arguments based on axioms, definitions and theorems. 3. Understand the Law of Large Numbers PERFORMANCE TARGETS Justify steps in generating equivalent expressions by identifying the properties used. Use substitution to check the equality of expressions for some particular values of the variables Apply Order of Operations to expressions Calculate probabilities and apply probability concepts to solve real-world and mathematical problems. 7 Orange School District Algebra I KEY ELEMENTS How can the properties of addition, subtraction, multiplication, and division be used to simplify expressions and solve equations? 1. 2. How can students apply previously learned skills to attempt increasingly complicated fractions? (e.g fractions, radicals) What are ratios and proportions, and how are they used to solve problems involving percents and measurement? 3. 4. 5. CONTENT (What Students should know) Recognize linear, quadratic, exponential and other common functions in real-world and mathematical situations Represent functions with tables, verbal descriptions, symbols and graphs Use substitution to check the equality of expressions for some particular values of the variables Make reasonable estimates and judgments about the accuracy of values resulting from calculations involving measurements Understand the roles of axioms, definitions, undefined terms, and theorems in logical arguments PERFORMANCE TARGETS Solve problems using functions and explain the results in the original context. Make qualitative statements about the rate of change of a function based on its graph or table of values Represent and solve problems in various contexts using linear equations and quadratic functions Justify steps in generating equivalent expressions by identifying the properties used. Apply the Pythagorean theorem and its converse to solve problems and logically justify results Apply properties of congruent and similar figures to solve problems and logically justify results Use Algebra to solve geometric problems unrelated to coordinate geometry KEY ELEMENTS CONTENT (What Students should know) PERFORMANCE TARGETS 8 Orange School District Algebra I 1. How can addition, subtraction, multiplication, and division be used to solve inequalities including compound inequalities? Represent real world and mathematical situations using equations and inequalities involving linear, quadratic, exponential and root functions. Solve equations and inequalities symbolically and graphically. Interpret solutions in the original text What are real-world situations that can be described and solved by inequalities? KEY ELEMENTS CONTENT (What Students should know) PERFORMANCE TARGETS 9 Orange School District Algebra I What situations are considered direct variations or inverse variations? 1. 2. What is function notation and why is it used? 3. Understand the definition of a function Use functional notation and evaluate a function at a given point in its domain Distinguish between functions and other relations defined symbolically or graphically Find the domain of a function Obtain information and draw conclusions from graphs of functions Understand slope Make qualitative statements about the rate of change of a function based on its graph or table of values KEY ELEMENTS How are the properties of a linear equation related to its graph and how can linear data patterns be used to describe real data? In what form must equations be in order to utilize a graphing calculator? What is the meaning of the slope of a line, especially in real-world situations? What if a graph doesn’t show on a calculator? What are changes to be made on the screen of a graphing calculator? CONTENT (What Students should know) 1. Identify intercepts from the graph of a function 2. Determine how translations affect the symbolic and graphical forms of a function 3. Know how to use graphing technology to examine translations 4. Use scatter plots 5. Determine regression lines and correlation coefficients. PERFORMANCE TARGETS Obtain information and draw conclusions from graphs of functions. Make qualitative statements about the rate of change of a function based on its graph or table of values Represent and solve problems in various contexts using linear and quadratic functions Sketch the graphs of common non-linear functions. Apply properties of parallel and perpendicular lines including properties of angles formed by a transversal to solve problems logically and justify results Analyze patterns and describe relationships between two variables. Use regression lines to make predictions and correlation coefficients to assess the reliability of those predictions 10 Orange School District Algebra I KEY ELEMENTS What is a system of equations/inequalities and how can they be used to solve problems? CONTENT (What Students should know) Represent relationships in various contexts using systems of linear inequalities. PERFORMANCE TARGETS Solve linear equations graphically Use technology to graph Interpret solutions What is the significance of the intersection point of two lines and what are ways in which this point may be found? KEY ELEMENTS How can properties of exponents be used to solve real-world problems? CONTENT (What Students should know) 1. 2. What are exponential growth situations? 3. What are exponential decay situations? 4. How are constant increase/decrease patterns different than exponential patterns? Recognize linear, quadratic, and exponential functions Represent functions with tables, verbal descriptions, symbols, and graphs Recognize problems that can be modeled using finite geometric sequences and series Estimate graphical and numerical solutions PERFORMANCE TARGETS Solve problems involving linear, quadratic, and exponential functions Explain results Solve problems that can be modeled using finite geometric sequences and series Compare the solution to the appropriate graphical or numerical estimates Interpret solutions 11 Orange School District Algebra I KEY ELEMENTS What are the different number sets and how do they relate to domain and range? What is the difference between evaluating and solving? How do properties of equality and inequality relate to solving equations and inequalities? KEY ELEMENTS CONTENT (What Students should know) Represent problems in various contexts using linear and quadratic equations Select and apply counting procedures such as multiplication and addition principles to calculate probabilities Describe the concepts of intersections, unions, and complements using Venn Diagrams PERFORMANCE TARGETS Solve problems in various contexts using linear and quadratic equations Justify steps in generating equivalent expressions by identifying the properties used Calculate probabilities in real-world context CONTENT (What Students should know) PERFORMANCE TARGETS 12 Orange School District Algebra I What are the characteristics of the different types of functions and how can they be used? 1. 2. What are the different forms of linear equations and how can you determine which form is best for a given situation? 3. 4. How an we graph a line given each of the different forms of a linear equation? 5. 6. Hoe can we solve and graph inequalities and absolute value in inequalities? 7. Understand the definition of a function. Distinguish between functions and other relations defined symbolically or graphically Define absolute value Represent relationships in various contexts using absolute value inequalities in two variables Use scatter plot Apply properties of parallel and perpendicular lines Use numeric, graphic and symbolic representations of transformations in two dimensions such as reflections, translations, scale changes and rotations about the point of origin. Find the domain of a function in a real world context Display and analyze data Use various measures associated with data to draw Conclusions Identify trends in data Describe relationships within the data Solve sample problems Sketch graphs of linear functions and translate between graphs, tables, and symbolic representations What is a matrix and how can it be used? Use graphing technology How can matrices be used to describe transformations? Use numeric, graphic, and symbolic re presentations of transformations Evaluate absolute value as specified points in their domains Solve absolute variable inequalities graphically Analyze patterns and describe relationships between variables. Determine regression lines and correlation coefficients Make predictions Use a data table to graph a linear equation Apply transformation Describe results KEY ELEMENTS CONTENT (What Students should know) PERFORMANCE TARGETS 13 Orange School District Algebra I What is a quadratic function and its characteristics? 1. What are the various ways to factor and when do you know which method to use? 2. How do you know which method is appropriate for solving a quadratic equation? 3. How do you graph parabolas using various quadratic concepts such as vertex, x and y intercepts, etc? 4. 5. How do polynomials apply to geometric concepts? 1. How do you determine the number of roots of a polynomial equation? 2. What are the different ways to solve a polynomial equation and how do you apply these methods? Understand the concept of function and identify important features of functions and other relations using symbolic and graphical methods where appropriate. Recognize linear, quadratic, and exponential functions in real world situations. Identify intercepts, zeros, maxima, minima, and intervals of increase and decrease. Determine how translations affect the symbolic and graphical forms of a function Recognize that to solve certain equations, number systems need to be extended from whole numbers to integers, from integers to rational numbers, from rational numbers to real numbers, and from real numbers to complex numbers. Identify the vertex, line of symmetry, and intercepts of the parabola corresponding to a quadratic function, using symbolic and graphical methods Generate equivalent algebraic expressions involving polynomials and radicals Use algebraic properties to evaluate expressions Add, subtract, and multiply polynomials Divide a polynomial by a polynomial of equal or lower degree Evaluate polynomial at specified points in their domains Sketch the graphs of common non-linear functions such as : F(x)=X3 Represent and solve problems in various contexts using quadratic functions Sketch graphs of quadratic functions Factor common monomial factors from polynomials Factor quadratic polynomials and factor the difference of two squares 14 Orange School District Algebra I KEY ELEMENTS CONTENT (What Students should know) Recognize linear, quadratic, and exponential functions in real world mathematical situations 2. Assess the reasonableness of a solution 3. Use graphing technology to graph functions 1. What are radical functions and what are their characteristics? How are powers and radicals related? PERFORMANCE TARGETS Sketch the graphs of common non-linear functions Evaluate the graph Solve problems involving radical functions Apply the properties of positive and negative rational exponents to generate equivalent algebraic expressions Solve equations that contain radical expressions 15 Orange School District Algebra I 16