West Windsor-Plainsboro Regional School District Algebra I Part 2 Grades 9-12

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1 West Windsor-Plainsboro Regional School District Algebra I Part 2 Grades 9-12

2 Unit 1: Polynomials and Factoring Course & Grade Level: Algebra I Part 2, 9 12 This unit involves knowledge and skills relative to polynomials, the basic building blocks of algebraic expressions. Using previous knowledge of the properties of numbers students will be able to transform polynomial expressions into equivalent forms. The concepts covered in this unit are foundational in finding solutions to quadratic equations and functions. 45 days Standard 4.A SSE Seeing Structure in Expressions 2 Use the structure of an expression to identify ways to rewrite it. Standard 4.A APR Arithmetic with Polynomials and Rational Expressions 1 Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials. 2 Know and apply the Remainder Theorem. For a polynomial p(x) and a number a, the remained on division by x a is p(a), so p(a) =0 if and only if (x a) is a factor of p(x). Rules of algebra can be used together with equivalents to transform expressions Algebraic and numeric procedures are interconnected and build on one another to produce a coherent whole How do the operations of addition, subtraction and multiplication apply to polynomial expressions? What makes an algebraic algorithm both effective and efficient? Procedures for adding, subtracting, multiplying and factoring polynomial expressions The correct terminology for identifying polynomial expressions by degree and number of terms Add, subtract and multiply polynomial expressions Completely factor polynomial expressions using the appropriate method Identify polynomial expressions by degree and number of terms

3 Unit 2: Quadratic Equations and Functions Course & Grade Level: Algebra I Part 1, 9 12 This unit will be an extension of skills that will model real world situations with quadratic functions and equations. In addition to the algebraic methods for solving quadratic equations, the unit will explore graphical representations of quadratic equations and analyze and extrapolate pertinent information from these graphs. 45 days Standard 4.A SSE Seeing Structure in Expressions 4 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. Standard 4.A REI Reasoning with Equations and Inequalities 4 Solve quadratic equations in one variable. a. Use the method of completing square to transform any quadratic equation in x into an equation of the form (x p) squared = q that has the same solutions. Derive the quadratic formula from this form. b. Solve quadratic equations by inspection, taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a 3 bi for real numbers a and b. Real world situations involving quadratic relationships can be modeled and solved using multiple representations Quadratic equations and functions can be solved using a variety of methods How can we use mathematical language to describe non linear change? What are the characteristics of a quadratic function? How can you solve a quadratic equation? Procedures for solving quadratic equations and functions A parabola is the graphical representation of a quadratic function

4 Solve quadratic equations and functions using the appropriate method Interpret the solution in context of the original problem Sketch a graph of a quadratic function given the equation Analyze the graph of a quadratic equation and determine the key characteristics Recognize and solve problems that can be modeled using a quadratic function Predict the number of real number solutions to a quadratic equation or function

5 Unit 3: Exponents, Exponential Functions, and Radical Expressions & Equations Course & Grade Level: Algebra I Part 2, 9 12 This unit of study provides the language and techniques for representing, analyzing, and interpreting expressions and equations involving exponents and radicals. Expressing non linear quantities gives us the power to recognize and describe patterns, make generalizations, and draw and justify conclusions. Non linear representations enable us to model many real life situations and represent them abstractly. 50 days Standard 4.A SSE Seeing Structure in Expressions 3 Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. c. Use the properties of exponents to transform expressions for exponential functions. Standard 4.F IF Interpreting Functions 8 Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. b. Use the properties of exponents to interpret expressions for exponential functions. Equivalent expressions can be represented in a variety of forms Mathematical models can be used to describe non linear physical relationships We can use radicals to model and solve real life geometric problems How do you know when an expression is simplified? How can we model situations using exponents and radicals? How are the Pythagorean Theorem and distance formula applied in solving geometric problems? The properties of exponents When an exponential model is appropriate The Pythagorean theorem and distance formula Simplify expressions involving positive, negative, and zero exponents. Extend the properties of exponents to numbers involving scientific notation. Add, subtract, multiply and divide numbers in radical form. Graph, model, and make predictions using exponential functions. Use the Pythagorean theorem and distance formula to solve problems

6 Solve radical equations

7 Unit 4: Rational Expressions, Equations and Functions Course & Grade Level: Algebra I Part 2, 9 12 This unit involves the study of rational functions and the interconnectedness of arithmetic and algebraic skills. Rational functions allow students to explore real world situations combining several algebraic concepts into one mathematical model. 40 days Standard 4.A APR Arithmetic with Polynomials and Rational Expressions 7 Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. Standard 4.A REI Reasoning with Equations and Inequalities 2 Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise. Equivalent expressions can be represented in a variety of forms There are algebraic models that represent the way of a number varies A variety of families of functions can be used to model and solve real world situations When is a rational expression simplified? How are patterns of change related to the type or behavior of functions? What real life phenomena can be represented with rational expressions? Equations for direct and inverse variation Operations with fractions extend to simplifying rational expressions Add, subtract, multiply and divide rational expressions Identify, interpret and model data using direct and inverse variation Apply rational equations to real life situations

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