2013 - 2014 Algebra 1 MATHEMATICS Curriculum Map Common Core State Standards Common Core State Standards Standards for Mathematical Practice 1. Make sense of problems and persevere in solving them. (MACC.K12.MP.1) Solving a mathematical problem involves making sense of what is known and applying a thoughtful and logical process which sometimes requires perseverance, flexibility, and a bit of ingenuity. 2. Reason abstractly and quantitatively. (MACC.K12.MP.2) The concrete and the abstract can complement each other in the development of mathematical understanding: representing a concrete situation with symbols can make the solution process more efficient, while reverting to a concrete context can help make sense of abstract symbols. 3. Construct viable arguments and critique the reasoning of others. (MACC.K12.MP.3) A well-crafted argument/critique requires a thoughtful and logical progression of mathematically sound statements and supporting evidence. 4. Model with mathematics. (MACC.K12.MP.4) Many everyday problems can be solved by modeling the situation with mathematics. 5. Use appropriate tools strategically. (MACC.K12.MP.5) Strategic choice and use of tools can increase reliability and precision of results, enhance arguments, and deepen mathematical understanding. 6. Attend to precision. (MACC.K12.MP.6) Attending to precise detail increases reliability of mathematical results and minimizes miscommunication of mathematical explanations. 7. Look for and make use of structure. (MACC.K12.MP.7) Recognizing a structure or pattern can be the key to solving a problem or making sense of a mathematical idea. 8. Look for and express regularity in repeated reasoning. (MACC.K12.MP.8) Recognizing repetition or regularity in the course of solving a problem (or series of similar problems) can lead to results more quickly and efficiently. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Algebra 1: Common Core State Standards The fundamental purpose of this course is to formalize and extend the mathematics that students learned in the middle grades. The critical areas, called units, deepen and extend understanding of linear and exponential relationships by contrasting them with each other and by applying linear models to data that exhibit a linear trend, and students engage in methods for analyzing, solving, and using quadratic functions. The Mathematical Practice Standards apply throughout each course and, together with the content standards, prescribe that students experience mathematics as a coherent, useful, and logical subject that makes use of their ability to make sense of problem situations. Relationships Between Quantities and Reasoning with Equations: By the end of eighth grade students have learned to solve linear equations in one variable and have applied graphical and algebraic methods to analyze and solve systems of linear equations in two variables. This unit builds on these earlier experiences by asking students to analyze and explain the process of solving an equation. Students develop fluency writing, interpreting, and translating between various forms of linear equations and inequalities, and using them to solve problems. They master the solution of linear equations and apply related solution techniques and the laws of exponents to the creation and solution of simple exponential equations. All of this work is grounded on understanding quantities and on relationships between them. SKILLS TO MAINTAIN: Reinforce understanding of the properties of integer exponents. The initial experience with exponential expressions, equations, and functions involves integer exponents and builds on this understanding. Linear and Exponential Relationships: In earlier grades, students define, evaluate, and compare functions, and use them to model relationships between quantities. In this unit, students will learn function notation and develop the concepts of domain and range. They explore many examples of functions, including sequences; they interpret functions given graphically, numerically, symbolically, and verbally, translate between representations, and understand the limitations of various representations. Students build on and informally extend their understanding of integer exponents to consider exponential functions. They compare and contrast linear and exponential functions, distinguishing between additive and multiplicative change. Students explore systems of equations and inequalities, and they find and interpret their solutions. They interpret arithmetic sequences as linear functions and geometric sequences as exponential functions. Expressions and Equations: In this unit, students build on their knowledge from the unit of Linear and Exponential Relationships, where they extended the laws of exponents to rational exponents. Students apply this new understanding of number and strengthen their ability to see structure in and create quadratic and exponential expressions. They create and solve equations, inequalities, and systems of equations involving quadratic expressions. Quadratic Functions and Modeling: In this unit, students consider quadratic functions, comparing the key characteristics of quadratic functions to those of linear and exponential functions. They select from among these functions to model phenomena. Students learn to anticipate the graph of a quadratic function by interpreting various forms of quadratic expressions. In particular, they identify the real solutions of a quadratic equation as the zeros of a related quadratic function. Students expand their experience with functions to include more specialized functions— absolute value, step, and those that are piecewise-defined. Descriptive Statistics: This unit builds upon students’ prior experiences with data, providing students with more formal means of assessing how a model fits data. Students use regression techniques to describe and approximate linear relationships between quantities. They use graphical representations and knowledge of the context to make judgments about the appropriateness of linear models. With linear models, they look at residuals to analyze the goodness of fit. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Algebra 1: Common Core State Standards At A Glance First Quarter DSA Unit - Real Number System MACC.912.N-RN.2.3 Unit 1- Solving Equations and Inequalities MACC.912.A-CED.1.1 MACC.912.A.-REI.1.1 *MA.912.A.5.4 MACC.912.A-CED.1.3 MACC.912.A-CED.1.4 MACC.912.A-REI.2.3 DIA 1 (Unit 1) Unit 2- Linear Equations and Their Graphs MACC.912.F-IF.1.1 MACC.912.F-IF.1.2 MACC.912.F-IF.2.5 MACC.912.F-IF.2.4 MACC.912.F-IF.2.6 MACC.912.A-CED.1.2 *MA.912.G.1.4(Assessed with MA.912A.A.1.4) DIA 2 Part A Second Quarter Unit 2- Linear Equations and Their Graphs (cont) MACC.912.A-REI.4.10 MACC.912.F-IF.3.7a MACC.912.F-LE.2.5 Unit 3- Systems of Linear Equations and Inequalities MACC.912.A.-REI.3.5 MACC.912.A.-REI.3.6 MACC.912.A-REI.4.11 MACC.912.A.-REI.4.12 MACC.912.A-CED.1.3 DIA 2 Part B Unit 4-Properties of Exponents MACC.912.N-RN.1.1 MACC.912.N-RN.1.2 MACC.912.F-IF.3.8b SSA N-RN: Real Number System A-REI: Reasoning with Equations and Inequalities F-BF: Building Functions F-LE: Linear, Quadratic and Exponential Models S-ID: Interpreting Data Mathematics Department Volusia County Schools Third Quarter Unit 5- Polynomials MACC.912.A-SSE.1.1 MACC.912.A-SSE.1.2 MACC.912.A-APR.1.1 Unit 6-Factoring and Solving Polynomials MACC.912.A-SSE.1.1 MACC.912.A-SSE.1.2 MACC.912.A-SSE.2.3 (MA.912.A.4.3) MACC.912.A-REI.2.4 MACC.912.A-APR.2.3 DIA 3 (Unit 6) Unit 7- Non –Linear Functions MACC.912.F-IF.2.4 MACC.912.F-IF.3.7a MACC.912.F-IF.3.8a MACC.912.F-IF.3.7b,c,e MACC.912.F-IF.3.9 MACC.912.F-BF.2.3 MACC.912.A.-REI.4.11 Fourth Quarter Unit 7- Non –Linear Functions(cont) MACC.912.F-IF.1.3 MACC.912.F-LE.1.2 MACC.912.F-BF.1.1 MACC.912.A-CED.1.1 MACC.912.F-LE.1.3 MACC.912.F-LE.1.1 MACC.912.F-LE.2.5 MACC.912.A-REI.4.11 DIA 4 (Unit 7) Unit 8-Interpreting Categorical and Quantitative Data *MA.912.D.7.1 *MA.912.D.7.2 Diagnostic EOC MACC.912.S-ID.1.1 MACC.912.S-ID.1.2 MACC.912.S-ID.1.3 MACC.912.S-ID.2.6 MACC.912.S-ID.3.7 MACC.912.S-ID.3.8 MACC.912.S-ID.3.9 MACC.912.S-ID.2.5 A-CED: Create Equations that Describe Relationships A-APR: Arithmetic with Polynomials & Rational Expressions F-IF: Interpreting Functions A-SSE: Seeing Structure in Expressions Algebra 1 Curriculum Map October 22, 2013 Fluency Recommendations A/G- Algebra I students become fluent in solving characteristic problems involving the analytic geometry of lines, such as writing down the equation of a line given a point and a slope. Such fluency can support them in solving less routine mathematical problems involving linearity, as well as in modeling linear phenomena (including modeling using systems of linear inequalities in two variables). A-APR.1- Fluency in adding, subtracting, and multiplying polynomials supports students throughout their work in Algebra, as well as in their symbolic work with functions. Manipulation can be more mindful when it is fluent. A-SSE.1b- Fluency in transforming expressions and chunking (seeing parts of an expression as a single object) is essential in factoring, completing the square, and other mindful algebraic calculations. The following Mathematics and English Language Arts CCSS should be taught throughout the course: MACC.912.N-Q.1.1: Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays. MACC.912.N-Q.1.2: Define appropriate quantities for the purpose of descriptive modeling. MACC.912.N-Q.1.3: Choose a level of accuracy appropriate to limitations on measurement when reporting quantities. LACC.910.RST.1.3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurements or performing tasks, attending to special cases or exceptions defined in the text. LACC.910.RST.2.4: Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in context and topics. LACC.910.RST.3.7: Translate quantitative or technical information expressed in words in a text into visual form and translate information expressed visually or mathematically into words. LACC.910.SL.1.1: Initiate and participate effectively in a range of collaborative discussions with diverse partners. LACC.910.SL.1.2: Integrate multiple sources of information presented in diverse media or formats evaluating the credibility and accuracy of each source. LACC.910.SL.1.3: Evaluate a speaker’s point of view, reasoning, and use of evidence and rhetoric, identifying any fallacious reasoning or exaggerated or distorted evidence. LACC.910.SL.2.4: Present information, findings and supporting evidence clearly, concisely, and logically such that listeners can follow the line of reasoning. LACC.910.WHST.1.1: Write arguments focused on discipline-specific content. LACC.910.WHST.2.4: Produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience. LACC.910.WHST.3.9: Draw evidence from informational texts to support analysis, reflection, and research. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 The Real Number System- Review Essential Question(s): How does knowledge of integers help when working with rational and irrational numbers? Standard The students will: MACC.912.N-RN.2.3. Explain why the sum or product of two rational numbers is rational; that the sum of a rational number and an irrational number is irrational; and that the product of a nonzero rational number and an irrational number is irrational. SMP #2, #3 Learning Goals I can: classify real numbers as rational or irrational according to their definitions. add, subtract, multiply and divide real numbers. explain why the sum of two rational numbers is rational. explain why the product of two rational numbers is rational. explain why the sum of a rational and irrational is irrational. Remarks Resources This unit should be treated as a review and be completed within 7 days. Algebra 1 resources for all sections: Illustrative mathematics: provides the standards with example problems that cover the standard. http://www.illustrativemathematics.org/standards/hs The Math Dude: http://www.montgomeryschoolsmd.org/departments/itv/mathdude/ Algebra Nation- http://www.algebranation.com/ Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 1-Solving Equations and Inequalities Essential Question(s): How can algebra describe the relationship between sets of numbers? In what ways can the problem be solved, and why should one method be chosen over another? Standard Learning Goals I can: Remarks Resources The students will: MACC.912A-CED.1.1. *AlgebraNation.com Students may believe that solving identify the variables and quantities Create equations and an equation such as 3x + 1 = 7 represented in a real world problem. inequalities in one variable involves “only removing the 1,” write the equation or inequality that Mini-Projects/Tasks= and use them to solve failing to realize that the equation 1 best models the problem. problems. = 1 is being subtracted to produce http://insidemathematic solve linear equations and SMP#4 the next step. s.org/problems-of-theinequalities. month/pom interpret the solution in the context of onbalance.pdf the problem. MACC.912A.REI.1.1 explain a process to solve equations. When using Distributive Property, http://insidemathematic Explain each step in solving a apply the distributive property when students often multiply the number s.org/common-coresimple equation as following (or variable) outside the necessary to solve equations. math-tasks/highfrom the equality of numbers construct a viable argument to justify parentheses by the first term in the asserted at the previous step, parentheses, but neglect to multiply school/HS-Aa solution method. 2003%20Number%20To starting from the assumption that same number by the other wers.pdf that the original equation has term(s) in the parentheses. a solution. Construct a viable Regarding variables on both sides, argument to justify a solution students often will try to combine the method. terms as if they are on the same SMP#4 side of the equation rather than eliminating one of the variables. MA.912.A.5.4 Solve algebraic proportions Mathematics Department Volusia County Schools solve algebraic proportions NGSS Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 1-Solving Equations and Inequalities (cont) Essential Question(s): How can algebra describe the relationship between sets of numbers? In what ways can the problem be solved, and why should one method be chosen over another? Standard Learning Goals I can: Remarks Resources The students will: MACC.912A.CED.1.3 Students may confuse the rule of reversing Mars Tasks: identify the variable and Represent constraints by the inequality when multiplying or dividing http://insidemathemat quantities represented in a realequations or inequalities, and by by a negative number, with the need to ics.org/commonworld problem. systems of equations and/or reverse the inequality anytime a negative core-math determine the best models for a inequalities, and interpret sign shows up in solving the last step of tasks/highreal-world problem. solutions as viable or non-viable school/HS-A write inequalities that best models the inequality. Example: options in a modeling context. 3x > -15 or x < - 5 2003%20Number%2 a problem. SMP #4 (Rather than correctly using the rule: -3x 0Towers.pdf >15 or x< -5) http://insidemathemat MACC.912A.CED.1.4 Students may struggle to solve literal solve a formula for a given ics.org/commonRearrange formulas to highlight a equations/ formulas due to not containing variable. core-mathquantity of interest, using the any numbers, so reiterating that the same solve problems involving literal tasks/highsame reasoning as in solving steps (inverse operations) are used equations. equations. whether dealing with eliminating a variable school/HS-F2008%20Functions.p SMP #4 or number may be helpful. df MACC.912A.REI.2.3 Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters. SMP #5, #7 Mathematics Department Volusia County Schools solve linear equations and inequalities in one variable. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 2 - Linear Equations and Their Graphs Clarification: Some of the CCSS in this unit include linear and non-linear learning goals. The focus for Unit 2 are learning goals for linear functions and inequalities. Non-linear functions will be covered in Unit 7. Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC. 912.F-IF.1.1 Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, the f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y=f(x). SMP #6, #7 Learning Goals I can: define relation, domain and range. define a function as a relation in which each input (domain) has exactly one output (range). determine if a graph, table or set of ordered pairs represent a function. determine if stated rules (both numeric and non-numeric) produce ordered pairs that form a function. explain that when ‘x’ is an element of the input of a function f(x) represents the corresponding output. explain that the graph of ‘f’ is the graph of the equation y=f(x). Remarks Students may believe that all relationships having an input and an output are functions, and therefore, misuse the function terminology. Students may also believe that the notation f(x) means to multiply some value f times another value x. The notation alone can be confusing and needs careful development. For example, f(2) means the output value of the function f when the input value is 2. Students may believe that it is reasonable to input any x-value into a function, so they will need to examine multiple situations in which there are various limitations to the domains. Other letters can be used for functional notation e.g. g(x), p(x), etc… Mathematics Department Volusia County Schools Resources Tasks & Mini-Projects http://insidemathematics .org/common-coremath-tasks/highschool/HS-F2008%20Functions.pdf http://insidemathematics .org/common-coremath-tasks/highschool/HS-F2004%20Graphs2004.p df http://insidemathematics .org/common-coremath-tasks/highschool/HS-F2006%20Printing%20Ti ckets.pdf Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 2 - Linear Equations and Their Graphs (cont) Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC. 912.F-IF.1.2 Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context. SMP #7 MACC. 912.F-IF.2.5 Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. SMP #4 MACC. 912.F-IF.2.4 For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship. SMP #1, #7, #8 Mathematics Department Volusia County Schools Learning Goals I can: decode function notation and explain how the output of a function is matched to its input. convert a table, graph, set of ordered pairs or description into function notation by identifying the rule used to turn inputs into outputs and writing the rule. use order of operations to evaluate a function for a given domain value. identify the numbers that are not in the domain of a function. choose and analyze inputs (and outputs) that make sense based on the problem. explain how the domain of a function is represented in its graph. state, defend and explain the appropriate domain of a function that represents a problem situation. Remarks f(x)= 2x2 + 4….squares the input, doubles the square and adds four to produce the output Given h(x) = the domain has to be positive numbers locate the information that explains what each quantity represents. interpret the meaning of an ordered pair. determine if negative inputs and/or outputs make sense in the problem. identify and explain the x and y intercept define intervals of increasing and decreasing of a table or graph. Algebra 1 Curriculum Map October 22, 2013 Resources Course: Algebra 1 Unit 2 - Linear Equations and Their Graphs (cont) Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC. 912.F-IF.2.6 Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph. SMP #4, #5 MACC.912.A-CED.1.2 Create equation in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales SMP #4 MA.912.G.1.4 Use coordinate geometry to find slopes, parallel lines, perpendicular lines, and equations of lines. (Assessed with MA.912.A.3.10) Mathematics Department Volusia County Schools Learning Goals I can: define and explain interval, rate of change and average rate of change. calculate the average rate of change of a function, represented either by function notation, a graph or a table over a specific interval. compare the rates of change of two or more functions interpret the meaning of the average rate of change in the context of the problem. set up coordinate axes using an appropriate scale and label the axes. write equations of lines in various forms. graph equations on coordinate axes with appropriate labels and scales. Remarks Students may also believe that the slope of a linear function is merely a number used to sketch the graph of the line. In reality, slopes have real-world meaning, and the idea of a rate of change is fundamental to understanding major concepts from geometry to calculus. Resources Get the Math http://www.thirteen.org/getthemath/files/2011/10/vidgam esfulllesson.pdf write equations of parallel and perpendicular lines. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 2 - Linear Equations and Their Graphs (cont) Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC.912.A-REI.4.10. Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line). SMP #2 MACC.912.F-IF.3.7a Graph linear functions by hand and show intercepts. SMP #7,#8 Learning Goals I can: explain that every ordered pair on the graph of an equation represents values that make the equation true. verify that any point on a graph will result in a true equation when their coordinates are substituted into the equation. MACC.912.F-LE.2.5 Interpret the parameters in a linear function in terms of a context. SMP #2, #4 Mathematics Department Volusia County Schools Remarks Resources identify that the parent function for lines is the line f(x) = x. identify and graph a line in the point-slope form: y-y1=m(x-x1). identify and graph a line in slope-intercept form: f(x)=mx+b. identify the standard form of a linear function as Ax + By = C. use the definitions of x and y intercepts to find the intercepts of a line in standard form and then graph the line. relate the constants A, B, and C to the values of the x and y intercepts and slope. identify the names and definitions of the parameters ‘m’ and ‘b’ in a linear function f(x)=mx+b. explain the meaning (using appropriate units) of the slope, yintercept and other points on the line when then line models a real-world relationship. compose an original problem situations and construct a linear function to model it. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 3 - Systems of Linear Equations and Inequalities Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC.912A-REI.3.5 Prove that given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions. SMP # 3 MACC.912.A-REI.3.6 Solve systems of linear equations exactly and approximately (with graphs), focusing on pairs of linear equations in two variables. SMP # 7 Mathematics Department Volusia County Schools Learning Goals I can: solve a system of two linear equations by graphing and determining the point of intersection. solve a system of two linear equations algebraically using substitution. solve a system of two linear equations algebraically using elimination. Remarks Most mistakes that students make are careless rather than conceptual. Teachers should encourage students to learn a certain format for solving systems of equations and check the answers by substituting into all equations in the system. Resources Mars Tasks: http://insidemathe matics.org/commo n-core-mathtasks/highschool/HS-A2006%20Graphs2 006.pdf Illuminations – Supply and Demand http://illuminations. nctm.org/LessonD etail.aspx?ID=L38 2 explain why some linear systems have no solutions or infinitely many solutions. solve a system of linear equations algebraically to find an exact solution. graph a system of linear equations and determine the approximate solution to the system of linear equations by estimating the point of intersection. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 3 - Systems of Linear Equations and Inequalities Essential Question(s): In what ways can the problem be solved, and why should one method be chosen over another? Standard The students will: MACC.912.A-REI.4.11 Explain why the x-coordinates of the points where the graphs of the equations y=f(x) and y=g(x) intersect are the solutions of the equations f(x)=g(x) using technology to graph the functions, make tables of values, or find successive approximations. MACC.912.A-REI.4.12 Graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of corresponding half-planes. SMP #5 MACC.912A.CED.1.3 Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or non-viable options in a modeling context. SMP #4 Mathematics Department Volusia County Schools Learning Goals I can: explain that a point of intersection on the graph of a system of equations represents a solution to both equations. infer that the x-coordinate of the points of intersections are solutions for f(x) = g(x). use a graphing calculator to determine the approximate solutions to a system of equations. solve and graph linear inequalities with two variables. solve and graph system of linear inequalities. explain that the solution set for a system of linear inequalities is the intersection of the shaded regions of both inequalities and check points in the shaded region to verify the solution. identify the variable and quantities represented in a realworld problem. determine the best models for a real-world problem. write inequalities that best models a problem. Remarks Resources Students will want to give an ordered pair answer instead of just the x-coordinate. Linear functions only in this unit. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 4 – Properties of Exponents Clarification: Radicals are now included in this sections. This will not only include the previous NGSSS standard for radicals (adding, subtracting, multiplying, and dividing radicals) but it will also include converting between radical and rational exponents. Essential Question(s): How does knowledge of integers help when working with rational and irrational numbers? How can the relationship between quantities best be represented? Standard Learning Goals I can: Remarks The students will: MACC.912.N-RN.1.1. Students sometimes misunderstand the meaning of evaluate and simplify Explain how the exponential operations, the way powers and roots relate expressions containing zero definition of the to one another, and the order in which they should be and integer exponents. meaning of rational performed. Attention to the base is very important. multiply monomials. exponents follows from apply multiplication properties Consider examples: ( ) and . The position of a extending the properties of exponents to evaluate and negative sign of a term with a rational exponent can of integer exponents to simplify expressions. mean that the rational exponent should be either applied those values, allowing divide monomials. first to the base, 81, and then the opposite of the result is for a notation for apply division properties of taken, ( ), or the rational exponent should be applied radicals in terms of exponents to evaluate and to a negative term . The answer of will be not rational exponents. simplify expressions. real if the denominator of the exponent is even. If the root SMP #3, #7, #8 apply properties of rational is odd, the answer will be a negative number. exponents to simplify expressions. Students should be able to make use of estimation when MACC.912.N-RN.1.2. convert between radicals and incorrectly using multiplication instead of exponentiation. Rewrite expressions rational exponents. involving radicals and Students may believe that the fractional exponent in the rational exponents using the properties of expression means the same as a factor of 1/3 in exponents. multiplication expression, 36 ● 1/3 and multiple the base SMP #7 by the exponent. Mathematics Department Volusia County Schools Resources Tasks & MiniProjects http://insidemathem atics.org/commoncore-mathtasks/highschool/HS-A2009%20Quadratic 2009.pdf Manipulating Radicals http://api.ning.com/f iles/oteyilu*j6qVWK tAVizsGFTd*nP1b3 gsbfNN3t7yxPqAFE9x*X2Vo50q q2gDApK8pn75oIJ uNVQovyELA6yBV O9Vt*yL7Ye/2mani pulating_radicals_c omplete.pdf Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 4 – Properties of Exponents (cont) Essential Question(s): How does knowledge of integers help when working with rational and irrational numbers? How can the relationship between quantities best be represented? Standard Learning Goals I can: Remarks Resources The students will: MACC.912.F-IF.3.8 b Only part “b” of this standard Exponential growth/decay distinguish between exponential functions Write a function defined by will be covered during this http://betterlesson.com/les that model exponential growth and an expression in different unit. Part “a” will be covered son/316881/exponentialexponential decay. but equivalent forms to during the Functions unit. growth-decay-an-m-m interpret the components of an exponential reveal and explain different study function in the context of a problem (e.g., y = properties of the function. 5 describes a quantity that was b) Use the properties of Lesson Planet – initially 5 and increases 22.5% every three exponents to interpret http://www.lessonplanet.co years.) expressions for Introduce the idea of classify m/search?keywords=expo apply the properties of exponents to rewrite exponential functions. them as representing nential+growth+and+decay an exponential function to emphasize one of SMP #2, #7 its properties (e.g., y = 5 ● 5● , exponential growth or decay. For example, identify percent Understanding Models which means that increasing 22.5% in three rate of change in functions growth/decay – years is about the same as increasing 7% per such as y = ,y= , http://www.nsa.gov/acade year. mia/_files/collected_learnin y= ,y= , g/high_school/modeling/un derstanding_models.pdf Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 5 – Polynomials Essential Question(s): Why structure expressions in different ways? How can the properties of the real number system be useful when working with polynomials and rational expressions? Standard Learning Goals I can: Remarks Resources The students will: Students may believe that an expression cannot be factored MACC.912.A-SSE.1.1: Tasks & classify and write polynomials in because it does not fit into a form they recognize. They need help MiniInterpret expressions that standard form. with reorganizing the terms until structures become evident. Projects represent a quantity in terms evaluate polynomial expressions. Students will often combine terms that are not like terms. For of its context. define expression, term, factor, and example, 2 + 3x = 5x or 3x + 2y = 5xy. a. Interpret parts of an http://engag coefficient. Students sometimes forget the coefficient of 1 when adding like expression, such as terms, eny.org/reso interpret the real-world meaning of terms. For example, x + 2x + 3x = 5x rather than 6x. factors and coefficients. urce/commo the terms, factors and coefficients of Students will change the degree of the variable when 2 b. Interpret complicated n-corean expression in terms of their units. adding/subtracting like terms. For example, 2x + 3x = 5x rather expressions by viewing one or group the parts of an expression exemplarthan 5x. Students will forget to distribute to all terms when more of their parts as a single multiplying. For example, 6(2x + 1) = 12x + 1 rather than 12x + 6. for-highdifferently in order to better interpret Students may not follow the Order of Operations when simplifying entity. school-math their meaning. expressions. For example, 4x2 when x = 3 may be incorrectly SMP #7 evaluated as 4•32 = 122 = 144, rather than 4•9 = 36. Students fail to use the property of exponents correctly when using the distributive property. For example, 3x(2x – 1) = 6x – 3x = 3x instead of simplifying as 3x(2x – 1) = 6x2 – 3x. Students fail to understand the structure of expressions. For example, they will write 4x when x = 3 is 43 instead of 4x = 4•x so when x = 3, 4x = 4•3 = 12. In addition, students commonly misevaluate –32 = 9 rather than –32 = –9. Students routinely see –32 as the same as (–3)2 = 9. Students commonly confuse the properties of exponents, specifically the product of powers property with the power of a power property. Students will incorrectly translate expressions that contain a difference of terms. For example, 8 less than 5 times a number is often incorrectly translated as 8 – 5n rather than 5n – 8. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 5 – Polynomials (cont) Essential Question(s): Why structure expressions in different ways? How can the properties of the real number system be useful when working with polynomials and rational expressions? Standard Learning Goals I can: Remarks Resources The students will: 4 4 MACC.912.A-SSE.1.2: multiply and divide polynomials For example, see x - y as (x²)² – (y²)², thus Use the structure of an recognizing it as a difference of squares that can be by monomials. expression to identify ways to multiply two binomials using the factored as (x² – y²)(x² + y²). rewrite it. distributive property. SMP #7 apply models for factoring polynomials to rewrite expressions. MACC.912.A-APR.1.1: Students often forget to distribute the subtraction to add and subtract polynomials. Understand that polynomials multiply and divide polynomials terms other than the first one. For example, students form a system analogous to will write (4x + 3) – (2x + 1) = 4x + 3 – 2x + 1 = 2x + 4 by monomials. the integers, namely, they are multiply two binomials using the rather than 4x + 3 – 2x – 1 = 2x + 2. closed under the operations distributive property. of addition, subtraction, and Students will change the degree of the variable when multiplication; add, subtract, adding/subtracting like terms. For example, 2x + 3x = and multiply polynomials. 5x2 rather than 5x. SMP #2, #7 Students may not distribute the multiplication of polynomials correctly and only multiply like terms. For example, they will write (x + 3)(x – 2) = x2 – 6 rather than x2 – 2x + 3x – 6. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 6 - Factoring and Solving Polynomials Essential Question(s): Why structure expressions in different ways? In what ways can the problem be solved, and why should one method be chosen over another? Standard Learning Goals I can: Remarks The students will: See remarks Unit 5 MACC.912.A-SSE.1.1: factor polynomials by using the greatest Some students may believe that Interpret expressions that represent a common factor. factoring and completing the square quantity in terms of its context. factor polynomials using the grouping method. are isolated techniques within a unit a. Interpret parts of an expression, such factor quadratic trinomials when a=1. of quadratic equations. Teachers as terms, factors, and coefficients. factor quadratic trinomials when a>1. should help students to see the b. Interpret complicated expressions by factor perfect square trinomials. value of these skills in the context of viewing one or more of their parts as a solving higher degree equations and factor the difference of two squares. single entity. examining different families of form a perfect-square trinomial from a given SMP #7 functions. quadratic binomial. MACC.912.A-SSE.1.2: Use the structure of an expression to identify ways to rewrite it. SMP #7 MACC.912.A-SSE.2.3: (MA912.A.4.3) Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. a. Factor a quadratic expression to reveal the zeros of the function it defines. b. Complete the square in a quadratic expression to reveal the maximum or minimum value of the function it defines. SMP #7 Mathematics Department Volusia County Schools look for and identify clues in the structure of expressions in order to rewrite in another way. apply models for factoring and multiplying polynomials to rewrite expressions. apply factoring methods to simplify rational expressions. factor a quadratic expression to find the zeroes of the function. predict whether a quadratic will have a minimum or a maximum based on the value of ‘a.’ identify the maximum or minimum of a quadratic written in the form a(x-h)2+k. Students may think that the minimum (the vertex) of the graph of y = (x + 2 5) is shifted to the right of the minimum (the vertex) of the graph y = x2 due to the addition sign. Students should explore examples both analytically and graphically to overcome this misconception. Resources Tasks & MiniProjects http://insidemat hematics.org/c ommon-coremathtasks/highschool/HS-A2006%20Quadr atic2006.pdf http://insidemat hematics.org/c ommon-coremathtasks/highschool/HS-A2007%20Two% 20Solutions.pd f Some students may believe that the minimum of the graph of a quadratic function always occur at the yintercept. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 6 - Factoring and Solving Polynomials (cont) Essential Question(s): Why structure expressions in different ways? In what ways can the problem be solved, and why should one method be chosen over another? Standard Learning Goals I can: Remarks The students will: MACC.912.A-REI.2.4: identify a quadratic expression, ax2 + bx + Solve quadratic equations in one c. variable. identify a perfect-square trinomial by first a. Use the method of noticing if a and c are perfect squares and completing the square to if b = 2ac. transform any quadratic factor a perfect-square trinomial. equation in x into an equation complete the square of ax2 + bx + c to of the form (x – p)² = q that write the quadratic in form (x-p)2 = q. has the same solutions. Derive derive the quadratic formula by the quadratic formula from this completing the square of ax2 + bx + c. form. determine the best method to solve a b. Solve quadratic equation quadratic equation in one variable. by inspection (e.g., for x² = 49), solve quadratic equations by inspection. taking square roots, solve quadratic equations by finding completing the square, the square roots. quadratic formula and solve quadratic equations by completing factoring, as appropriate to the the square. initial form of the equation. Recognize when the quadratic solve quadratic equations using the quadratic formula. formula gives complex solve quadratic equations by factoring. solutions and write them as a ± explain that complex solutions result when bi for real numbers a and b. the radicand is negative in the quadratic SMP #7, #8 formula (b2 – 4ac < 0). write complex number solutions for a quadratic equation in the form a + bi by using i = √-1. Mathematics Department Volusia County Schools Resources http://www.purpl emath.com/mod ules/complex3.ht m Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 6 - Factoring and Solving Polynomials (cont) Essential Question(s): Why structure expressions in different ways? In what ways can the problem be solved, and why should one method be chosen over another? Standard Learning Goals I can: Remarks The students will: MACC.912.A-APR.2.3: Tasks are limited to quadratic and identify the zeroes of factored polynomials. Identify zeros of polynomials when cubic polynomials in which linear identify the multiplicity of the zeroes of a suitable factorizations are available, and quadratic factors are factored polynomial. and use the zeros to construct a rough explain how the multiplicity of zeroes provides a available. For example, find the graph of the function defined by the zeros clue as to how the graph will behave when it polynomial. of (x - 2)(x2 - 9). approaches and leaves the x-intercept. SMP #1, #8 sketch a rough graph using the zeroes of a polynomial and other easily identifiable points such as the y-intercept. Mathematics Department Volusia County Schools Resources Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions Standard The students will: MACC. 912.F-IF.2.4 For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship. SMP #1, #7, #8 Mathematics Department Volusia County Schools Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks locate the information that explains what each quantity represents. interpret the meaning of an ordered pair. determine if negative inputs and/or outputs make sense in the problem. identify and explain the x and y intercept define intervals of increasing and decreasing of a table or graph. identify and explain relative maximums and minimums. identify reflective and rotational symmetries in a table or graph. explain why the function has symmetry in the context of the problem. identify and explain positive and negative end behavior of a function. define and identify a periodic function from a table or graph. explain why a function is periodic. Resources Algebra 1 Curriculum Map October 22, 2013 MACC.912.F-IF.3.7a Graph quadratic functions and show intercepts, maxima and minima. SMP #7, #8 MACC.912.F-IF.3.8a Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. a. Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of a context. SMP #2, #7 MACC.912.F-IF.3.7b-e (excluding “d’) Graph function expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated functions. SMP #7, #8 Mathematics Department Volusia County Schools explain that the parent function for quadratic functions is a parabola f(x) = x2 . explain that the minimum and maximum of a quadratic is called the vertex. identify whether the vertex of a quadratic will be a minimum or maximum by looking at the equation. find the y-intercept of a quadratic by substituting 0 for ‘x’ and evaluating. estimate the vertex of a quadratic by evaluating different values of ‘x’. decide if the quadratic has x-intercepts and if so estimate their value(s). graph a quadratic using evaluated points use technology to graph a quadratic and to find precise values for the x-intercept(s) and maximum or minimum. graph using evaluated points and technology and explain the parent function of the following: square root, cube root, piecewise, absolute value, step, and exponential functions. find intercepts, maximums and minimums, end behavior, and horizontal asymptotes (by observation) when present. explain how the domain of a function is represented in its graph. The expectation is for F.IF.3.7a &3.7e to focus on linear and exponential functions in Algebra I. Include comparisons of two functions presented algebraically. For example, compare the growth of two linear functions, or two exponential functions. Forming Quadratics – http://map.maths hell.org/material s/download.php? fileid=700 In Algebra I for F.IF.3.7b, compare and contrast absolute value, step and piecewisedefined functions with linear, quadratic, and exponential functions. Highlight issues of domain, range, and usefulness when examining piecewise- defined functions. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions (cont) Standard The students will: MACC.912.F-IF.3.9 Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). MACC.912.F-BF.2.3 Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology SMP #5, #7 Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks Key characteristics include but are not state the appropriate domain of a function that limited to maxima, minima, intercepts, represents a problem situation, defend my symmetry, end behavior, and asymptotes. choice, and explain why other numbers might Students may use graphing calculators or be excluded from the domain. programs, spreadsheets, or computer identify the degree of a polynomial. algebra systems to graph functions. classify exponential functions as growth or For example, given a graph of one decay. quadratic function and an algebraic approximate the factored equation of a expression for another, say which has the polynomial function when looking at a graph of larger maximum. a function. determine the multiplicity of the x-intercepts of a polynomial when looking at a graph of the function. ‘k’ translations include: left, right, up, down, explain how ‘k’ translates the original graph vertical stretch and shrink, horizontal stretch determine the value of ‘k’ when given the and shrink graph of a transformed function. Resources http://www.math.h mc.edu/calculus/tu torials/transformati ons/ Students may believe that each family of functions (e.g., quadratic, square root, etc.) is independent of the others, so they may not recognize commonalities among all functions and their graphs. Students may believe that the graph of y = (x – 3 3 4) is the graph of y = x shifted 4 units to the left (due to the subtraction symbol). Examples should be explored by hand and on a graphing calculator to overcome this misconception. Students often confuse the shift of a function with the stretch of a function. Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions (cont) Standard The students will: MACC.912.F-IF.1.3 Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers. SMP #2, #7, #8 Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks MACC.912.F-LE.1.2 Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two inputoutput pairs (include reading these from a table). SMP #2, #7, #8 Mathematics Department Volusia County Schools convert a sequence into a function. explain that a recursive formula tells me how a sequence starts and tells me how to use the previous value(s) to generate the next element of the sequence. explain that an explicit formula allows me to find any element of a sequence. distinguish between explicit and recursive formulas for sequences. relate arithmetic sequences to linear functions. relate geometric sequences to exponential functions. determine if a function is linear or exponential given a sequence, a graph, a verbal description or a table. describe the algebraic process used to construct the linear function and exponential function that passes through two points. In F.IF.1.3 draw a connection to F.BF.2, which requires students to write arithmetic and geometric sequences. Emphasize arithmetic and geometric sequences as examples of linear and exponential functions. For example, the Fibonacci sequence is defined recursively by f(0) = f(1) = 1, f(n+1) = f(n) + f(n-1) for n ≥ 1. Resources http://www.kens ton.k12.oh.us/k hs/academics/ math/AA_112B_arithmetic_s equences_recur sive.pdf Students should be able to explain that a recursive formula tells how a sequence starts and how to use the previous value(s) to generate the next element of the sequence. Students should be able to explain that an explicit formula allows them to find any element of a sequence without knowing the element before it (e.g., If I want to know the 11th number on the list, I substitute the number 11 into the explicit formula). Algebra 1 Assessment Limits and Clarifications i) this standard is part of the Major work in Algebra I and will be assessed accordingly. ii) Tasks are limited to constructing linear and exponential functions in simple context (not multi- step). Prentice Hall Textbook Section 4.7 (arithmetic sequences only) Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions (cont) Standard The students will: MACC.912.F-BF.1.1 Write a function that describes the relationship between two quantities. SMP #4, #7 MACC.912A-CED.1.1. Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions. SMP#4 MACC.912.F-LE.1.3 Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function. Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks Resources http://www.montgom identify the quantities being compared in Students may believe that the process of rewriting equations into various forms is eryschoolsmd.org/d a real-world problem. simply an algebra symbol manipulation epartments/itv/math write a function to describe a real-world exercise, rather than serving a purpose of dude/MD_Algebra1_ problem. allowing different features of the function to 7-3.shtm compose two or more functions. be exhibited. Prentice Hall Textbook Section 4.5 understand exponential functions and how they are used. recognize differences between graphs of exponential functions with different bases. apply exponential functions to model applications that include growth and decay in different contexts. SMP #2, #8 Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions (cont) Standard The students will: MACC.912.F-LE.1.1 Distinguish between situations that can be modeled with linear functions and with exponential functions. a. Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals. b. Recognize situations in which one quantity changes at a constant rate per unit interval relative to another. c. Recognize situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another. SMP #3, #4, #8 Mathematics Department Volusia County Schools Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks Compare tabular representations of a variety of functions to define a linear function and show that linear functions have a first common difference exponential function. (i.e., equal differences over equal intervals), while demonstrate that an exponential exponential functions do not (instead function values grow function has a constant multiplier or by equal factors over equal x-intervals). equal intervals. identify situations that display Apply linear and exponential functions to real-world equal ratios of change over equal situations. For example, a person earning $10 per hour intervals and can be modeled with experiences a constant rate of change in salary given the number of hours worked, while the number of bacteria on a exponential functions. dish that doubles every hour will have equal factors over distinguish between situations equal intervals. modeled with linear functions and with exponential functions when Provide examples of arithmetic in graphic, verbal, or tabular presented with a real-world forms, and have students generate formulas and equations problem. that describe the patterns. Resources http://spot.pcc.ed u/~kkling/Mth_11 1c/SectionII_Exp onential_and_Lo garithmic_Functio ns/Module3_Com paring_Linear_an d_Exponential/M odule3_Comparin g_Linear_and_Ex ponential.pdf Examine multiple real-world examples of exponential functions so that students recognize that a base between 0 and 1 (such as an equation describing depreciation of an automobile [ f(x) = 15,000(0.8)x represents the value of a $15,000 automobile that depreciates 20% per year over the course of x years]) results in an exponential decay, while a base greater than 1 (such as the value of an investment over time [ f(x) = 5,000(1.07)x represents the value of an investment of $5,000 when increasing in value by 7% per year for x years]) illustrates growth. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 7 – Non-Linear Functions (cont) Standard The students will: MACC.912.F-LE.2.5 Interpret the parameters in an exponential function in terms of a context. SMP #2, #4 MACC.912.A-REI.4.11 Explain why the x-coordinates of the points where the graphs of the equations y=f(x) and y=g(x) intersect are the solutions of the equations f(x)=g(x) using technology to graph the functions, make tables of values, or find successive approximations. Mathematics Department Volusia County Schools Essential Question(s): How can the relationship between quantities best be represented? In what ways can functions be built? Can you determine which function best models a situation? Learning Goals I can: Remarks identify the names and definitions of the parameters ‘a’, ‘b’ and ‘c’ in the exponential function f(x)=a(bx)+c. explain the meaning (using appropriate units) of the constant a, b, c and other points of an exponential function when the exponential function models a realworld relationship. compose an original problem situation and construct an exponential function to model it. explain that a point of intersection on the graph of a system of equations represents a solution to both equations. infer that the x-coordinate of the points of intersections are solutions for f(x) = g(x). use a graphing calculator to determine the approximate solutions to a system of equations. Resources Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 8 – Interpreting Categorical and Quantitative Data Essential Question(s): How can the properties of data be communicated to illuminate its important features? Standard Learning Goals The students will: I can: Remarks MA.912.D.7.1 find the union, intersection, and compliment of NGSS benchmark that will be Perform set operations such assessed on the EOC. sets. as union and intersection, determine number of elements of a set. complement, and cross use tree diagrams and the Fundamental product. Counting Principle to count the number of choices that can be made from sets. MA.912.D.7.2 Use Venn diagrams to explore relationships and patterns and to make arguments about relationships between sets. MA.912.D.7.2 Use Venn diagrams to explore relationships and patterns and to make arguments about relationships between sets. Mathematics Department Volusia County Schools use VENN diagrams to organize sets of data and to make predictions about the given data. Identify the cross product of two sets. NGSS benchmark that will be assessed on the EOC. use VENN diagrams to organize sets of data and to make predictions about the given data. identify the cross product of two sets. NGSS benchmark that will be assessed on the EOC. Resources Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 8 – Interpreting Categorical and Quantitative Data (cont) Essential Question(s): How can the properties of data be communicated to illuminate its important features? Standard Learning Goals The students will: I can: Remarks MACC.912.S-ID.1.1 choose the appropriate scale to represent data on Represent data with plots on a number line. the real number line (dot construct a dot plot, histogram and box plot. plots, histograms and box calculate the 5-number summary for a set of data. plots). SMP #1, #5 MACC.912.S-ID.1.2 Mean or Median (not describe the center and spread of the data Use statistics appropriate to mode) distribution. the shape of the data Interquartile Range (IQR) choose histogram with the largest mean and distribution to compare center and Standard Deviation standard deviation. (median, mean) and spread choose the box plot with the greatest IQR. (interquartile range, standard compare two or more data sets by examining deviation) of two or more their shapes, center, and spreads. sets. SMP #1, #5 MACC.912.S-ID.1.3 Shape included: Skewed interpret the differences in shape, center, and Interpret differences in shape, Right (positive), Skewed spread in the context of the problem. center and spread in the Left (negative), identify outliers. context of data sets, Symmetrical Normal, predict the effect an outlier will have on the accounting for possible Symmetrical Non-Normal shape, center and spread. effects of extreme data points decide whether to include the outliers as part of and Uniform (outliers). the data set or to remove them. SMP #1, #5 Mathematics Department Volusia County Schools Resources Interactive – Aligned Resources – lessons for stats http://www.shodor.org/i nteractivate/standards/ organization/objective/2 331/ Interpreting Statistics http://map.mathshell.or g/materials/download.p hp?fileid=686 Representing Data: Using Box Plots http://map.mathshell.or g/materials/download.p hp?fileid=1243 Get the Math – http://www.thirteen.org/ get-themath/files/2012/04/Mat h-in-Restaurants-FullLesson-Final4.17.12.pdf Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 8 – Interpreting Categorical and Quantitative Data (cont) Essential Question(s): How can the properties of data be communicated to illuminate its important features? Standard The students will: Learning Goals I can: MACC.912.S-ID.1.4 Use the mean and standard deviation of a data set to fit it to a normal distribution and to estimate population percentages. Recognize that there are data sets for which such a procedure is not appropriate. Use calculators, spreadsheets, and tables to estimate areas under the normal curve. SMP #2, #5, #7 MACC.912.S-ID.2.6 Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. a. Fit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given functions or choose a function suggested by the context. Emphasize linear, quadratic, and exponential models. a. Informally assess the fit of a function by plotting and analyzing residuals. b. Fit a linear function for a scatter plot that suggests a linear association SMP #2, #4 Mathematics Department Volusia County Schools use the mean and standard deviation of a set of data to fit the data to a normal curve use the 68-95-99.7 Rule to estimate the percent of a normal population that falls within 1,2 or 3 standard deviations of the mean recognize that normal distributions are only appropriate for unimodal and symmetric shapes estimate the area under a normal curve using a calculator, table or spreadsheet explain that scatter plots can only be used to represent quantitative variables. identify the independent and dependent variable. describe the relationship of the variables. construct a scatter plot and identify any outliers. determine when linear, quadratic and exponential models should be used to represent a data set. determine whether linear and exponential models are increasing or decreasing. use technology to find the function of best fit, sketch the function and use it to make predictions. compute residuals. construct and analyze a residual plot to determine whether the function is an appropriate fit. sketch a line of best fit on a scatter plot. write the equation of the line of best fit (y=mx+b) using technology or by using two points on the best fit line. Remarks Resources The 68-95-99.7 Rule is also known as the Empirical Rule. Statistics Education Web (STEW) – lesson plans http://www.amsta t.org/education/st ew/ Residual = observed value – predicted value A residual plot is a scatter plot of the independent variable and the residuals. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 8 – Interpreting Categorical and Quantitative Data (cont) Essential Question(s): How can the properties of data be communicated to illuminate its important features? Standard The students will: MACC.912.S-ID.3.7 Interpret the slope (rate of change) and the intercept (constant term) of a linear model in the context of the data. SMP #2, #4, #5 MACC.912.S-ID.3.8 Compute (using technology) and interpret the correlation coefficient of a linear fit. SMP #4, #5 Learning Goals I can: interpret the meaning of the slope and y-intercept in terms of the units stated in the data. MACC.912.S-ID.3.9 Distinguish between correlation and causation. SMP #2, #3, #4 Mathematics Department Volusia County Schools Remarks Resources explain that correlation coefficient applies only to quantitative variables and measures the “goodness of a linear fit”. explain that correlation must be between -1 and 1 inclusive and explain what each of these values mean. compute correlation (r) using a graphing calculator or other appropriate technology. apply correlation to interpret the direction and strength of a linear model and determine if it is a good fit for the data. recognize that correlation does not imply causation and that causation is not illustrated on a scatter plot. choose two variables that could be correlated because one is the cause of the other and defend my selection. choose two variables that could be correlated even though neither variable could be the cause of the other and defend my selection. determine if statements of causation seem reasonable or unreasonable and defend my opinion. Algebra 1 Curriculum Map October 22, 2013 Course: Algebra 1 Unit 8 – Interpreting Categorical and Quantitative Data (cont) Essential Question(s): How can the properties of data be communicated to illuminate its important features? Standard The students will: MACC.912.S-ID.2.5 Summarize categorical data for two categories in two-way frequency tables. Interpret relative frequencies in the context of the data (including joint, marginal, and conditional relative frequencies). Recognize possible associations and trends in the data. SMP #2 Learning Goals I can: read and interpret data displayed in a two-way frequency table. write clear summaries of data displayed in a twoway frequency table. calculate percentages using ratios to yield relative frequencies. calculate joint, marginal and conditional relative frequencies. interpret and explain the meaning of relative frequencies in the context of a problem. draw bar charts or pie charts to represent the relative frequencies. describe patterns observed in the data recognize the association between two variables by comparing conditional and marginal percentages. Remarks Resources Representing Data 1: Using Frequency Graphs http://map.mathshell.org/ materials/download.php? fileid=1230 Algebra 1 resources for all sections: Illustrative mathematics: provides the standards with example problems that cover the standard. http://www.illustrativemathematics.org/standards/hs The Math Dude: http://www.montgomeryschoolsmd.org/departments/itv/mathdude/ Algebra Nation- http://www.algebranation.com/ Mathematics Department Volusia County Schools Algebra 1 Curriculum Map October 22, 2013
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