Course Title: Advanced Algebra With Trigonometry (Level 2 ) Grade: 12 Length of Course: One Year (5 credits) Prerequisite: Algebra 2, or special permission of the Math Supervisor Description: The Math 12 course, although consisting primarily of Precalculus concepts, integrates geometry, discrete mathematics and statistics together with advanced algebra concepts. Pure and applied mathematics is also integrated throughout the course. These unifying strands are employed for a specific purpose – to motivate, justify, extend, and enhance critical mathematical skills and concepts. A real-world orientation is also emphasized in guiding the approaches that allow students in working out exercises and problems. In addition to marinating a real-world orientation and integrating up-to-date technology (graphing calculators and computers), the course emphasizes facility with more advanced algebraic expressions and functions – especially quadratic and trigonometric relations – and other functions based on these concepts. Students also will begin to develop an understanding of less traditional topics, such as Sampling and Surveys – necessary in solidifying connections between the abstractions of mathematics and the real world. This course is consistent with the district K-12 Mathematics Program, as well as with the New Jersey Core Curriculum Content Standards, as students continue to build on the previously studied content standards in addition to the process standards of Problem Solving, Communication, Reasoning, Connections, and Representation. This Twelfth Grade course aims at preparing students for success in college-level Mathematics – Pre Calculus and eventually Calculus. To succeed in these areas of mathematics, students must acquire an understanding of functions – particularly the properties, behavior and manipulation of important functions such as polynomial, exponential, logarithmic and trigonometric functions. Beyond functions, students must also then have a firm understanding of analytic trigonometry, of sequences and series and of introductory limits. In addition, units on Probability and Counting, and Elementary Statistics (in lieu of the more rigorous treatment of limits prescribed in the curriculum) are included to prepare students for college-level Statistics. Please note that the scope and sequence for this twelfth grade course may vary slightly from year to year depending on the needs of the students. In order to succeed in many of the topics above, pupils need an on-going, thorough review of the fundamental foundations of the understanding of this material. Thus, included and built into the curriculum are many essential topics of review. Evaluation: Student performance will be measured using a variety of instructor-specific quizzes and chapter tests as well as a common departmental Quarterly, Midterm and Final Exam. Assessments will equally emphasize measurement of the degree to which required skills have been mastered as well as how well key concepts have been understood. Scope and Sequence: A pacing guide for Level 2 is attached. Texts: Advanced Algebra, Scott, Foresman, and Company (1996) Functions, Statistics and Trigonometry [FST], Scott, Foresman and Company 1996 Advanced Mathematics, Richard G. Brown, Houghton Mifflin Company 1992 Reference Texts: Precalculus with Trigonometry, Concepts & Applications, Paul A. Foerster, Key Curriculum Press (2003) Precalculus with Limits: Houghton Mifflin (2001) Unit 1: Fundamentals Learning Objectives The student will … 1.a Develop, apply, and explain methods for solving problems involving rational and negative exponents; They will perform basic algebraic operations on exponential expressions, radical expressions, and polynomial expressions. (4.1-B2, B4, 4.3-A3, D1, D3) 1.b Recognize and extend previous knowledge of rational numbers to rational expressions. Perform basic algebraic operations on rational expressions. (4.1-B1 4.3-A3, D1, D2, D3) Content Outline Key Definitions, Skills and Concepts Instructional Materials What is an exponent? What is a radical? What is a rational exponent? What is a polynomial? [FST] – Chapter 2 Skills check, ability to: Simplify expressions with positive, negative and fractional exponents Simplify expressions with roots of degree 2 or higher Switch back and forth from radical notation to fractional exponent notation Express numbers in scientific notation Add, subtract and multiply polynomials Factor polynomials using a variety of techniques, such as factoring formulas, trial and error or factoring a common monomial Concept check: How can our understanding of exponent notation be used to prove each of the “exponent rules”? Advanced Algebra – Chapter 1, 7, 8 What is a rational expression? Advanced Algebra – Chapter 7 Brown – Chapter 1, 2, 5 Skills check, ability to: Simplify rational expressions by canceling common factors from both numerator and denominator Multiply and divide rational expressions Rationalize numerator or denominator using conjugate radical Concept check: How is simple fractional arithmetic similar to manipulating rational expressions? Are the following statements correct? If not, why not? a 2 b2 a b a 1 b 1 (a b) 1 1.c Solve linear and quadratic equations; Connect and explain important aspects of these equations and their application to real life situations. (4.1-A3, B1 4.3-A3, D2, D3) What is a linear equation? What is a quadratic equation? Skills check, ability to: Solve a variety of linear equations Solve multivariate equations for a given variable Solve quadratic equations by factoring, and the quadratic formula Solve equations radicals Concept check: How do you know when something is a solution to an equation? Why is the discriminant important? Brown – Chapter 1 Learning Objectives The student will … 1.d Compare and contrast the methodologies used in the solving of linear equations and absolute value equations. Evaluate Algebraic Expressions (4.1-A3, B1 4.3-A3, D2, D3) 1.e Illustrate methods of solving Quadratic Formula and relate the solutions to the graphic representation of quadratics. Interpret the significance of the discriminant and illustrate how it helps in understanding the nature of the roots of the quadratic equation. Content Outline Key Definitions, Skills and Concepts Expressions and Formulas Expressions vs. Equations: Differences and commonalities Variables as unknowns, varying quantities, and in formulas Evaluating Expressions & Using Formulas Using formulas by substituting for the independent variable and simplifying Solving Equations Solving linear equations with one variable Translating verbal & algebraic expressions Reverse order of operations to solve equation Properties of Equality: Reflexive, Symmetric, Transitive, Substitution Solving for a particular variable in a formula Solving Absolute Value Equations Solve for variables inside abs value brackets Separate into 2 equations, find 2 solutions The Quadratic Formula and the Discriminant The four stages of the Quadratic Formula: Standardize: Put quadratic equation into standard form equal to zero. Id.values of a, b,c Substitute. Simplify Split: Separate the plus/minus expression to create (up to) 2 solutions The Discriminant Use discriminant to determine the nature of the solutions to the equation, and number of x- intercepts on the graph Instructional Materials Brown : Chapters 1 and 3 Brown Chapter 1 FST – Chapter 2 Advanced Algebra – Chapter 6 (4.1-A3, B1 4.3-A3, D2, D3) 3 Unit 2: Functions Learning Objectives The student will … 2.a Use functions to model real world phenomena and solve problems that involve varying quantities. (4.3-A3, B1, B2, D3) Content Outline Key Definitions, Skills and Concepts Instructional Materials What is a function? What is the domain and range of a function? When is a variable independent? When is it dependent? Skills check, ability to: Evaluate functions (including piecewise defined functions) Concept check: What does it mean to say that f is a function of x? True or false: f (x ) the same as f x . Explain why. Give examples of functions in real life. Explain why your examples are functions. Represent functions using machine diagrams and arrow diagrams. Represent a given function verbally, algebraically, graphically (visually) and numerically (i.e. using a table of values). [FST] 2-1 (The Language of Functions) Advanced Algebra – Chapter 1 What are the algebraic properties of functions? What is a composite function? [FST] 3-7 Advanced Algebra – Chapter 8 Brown – Chapter 4 Unit 2: Functions – continued 2.b Combine functions to create new functions and identify their resulting domains. Skills check, ability to: Perform addition, subtraction, division and multiplication of functions (algebraically) Find composite functions and their corresponding domains (4.3-B4) 2.c Identify one-to-one functions, determining and interpreting the meaning and significance of their corresponding inverses. (4.1-B4) What is a one-to-one function? What is the definition of an inverse of a function? What is the inverse function property? Skills check, ability to: Test for whether a given function is one-to-one and the existence of an inverse function (horizontal line test) Verify whether two functions are inverses Concept check: Why does a function that is not one-to-one not have an inverse? Explain how one finds an inverse. Brown – Chapter 4 [FST] 3-8 (Inverse Functions) Advanced Algebra – Chapter 8 4 Unit 3: Polynomial and Rational Functions Learning Objectives The student will … 3.a Perform basic algebraic operations on imaginary numbers; explain their meaning and significance. Content Outline Key Definitions, Skills and Concepts Instructional Materials Imaginary numbers [FST] 9.6 (Complex Numbers) Factor radicals to extract a negative & replace w/ i Properties of imaginary numbers Operations on imaginary numbers (+ - x ÷ ) Solve quadratic equations w/imaginary solutions Advanced Algebra: Chapter 6 Brown – Chapter 11 Complex Numbers Definition of Complex Number in a bi form. Arithmetic with complex numbers (add / subtract) Multiplying complex numbers (using FOIL) Complex conjugates Divide complex numbers Divide a complex number by a constant: Separate fractions Divide a complex number by imaginary number Divide 2 complex numbers -use complex conjugate Complex Numbers Perform operations with complex numbers Find complex roots for quadratic equations Rationalize complex fractions by using the complex conjugate Unit 3: Polynomial and Rational Functions - continued What is a complex number? 3.b Connect the procedures in solving basic algebraic operations to those necessary in work with complex numbers; find complex solutions to quadratic equations. Skills check, ability to: Recognize complex numbers and their parts Add, subtract, multiply and divide complex numbers Simplify expressions with square roots of negative numbers Find complex solutions to quadratic equations Concept Check: [FST] 9.6 (Complex Numbers) Advanced Algebra: Chapter 6 Brown – Chapter 11 2 (4.3-A3) What is the value of i ? What is the value of i ? How do you determine whether a quadratic equation has complex solutions? 5 Unit 4: Exponential and Log Functions Learning Objectives The student will … 4.a Recognize and evaluate exponential functions and relate insights to graphical interpretations (4.3-B5) 4.b Recognize, evaluate, graph and apply transformations to logarithmic functions and convert logarithmic functions to exponential functions (and vice versa). (4.3-B5) 4.c Manipulate (i.e. expand or combine) and evaluate logarithmic expressions using the laws of logarithms. Recognize, explain and apply insights to real -world models. Content Outline Key Definitions, Skills and Concepts Instructional Materials What is an exponential function? What is a natural exponential function? Skills check, ability to: Express an exponential function in standard form Evaluate exponential functions (including natural exponential functions) Graph exponential functions (including natural exponential functions) Identify and distinguish graphs of exponential functions. Concept check: What distinguishes an exponential function from a linear function? Give a verbal representation of an exponential function. What is the number e and when is it used? (Or, what is so natural about the number e?) [FST] 4.3 (Exponential Functions, note: natural exponentials covered in FST 4.6) Advanced Algebra – Chapter 9 Brown – Chapter 5 What is a logarithmic function? What is a common logarithm? What is a natural logarithm? Skills check, ability to: Switch back and forth from logarithmic to exponential expressions. Evaluate logarithms using basic properties of logarithms Graph logarithmic functions Evaluate common logarithms Evaluate natural logarithms Find the domain of a logarithmic function Concept check: How are logarithmic functions related to exponential functions? Why is the domain of a logarithmic function restricted? [FST] 4.5 (Logarithmic Functions) [FST] 4.6 (e and Natural Logarithms) What are the laws of logarithms? [FST] 4.7 Skills check, ability to: Use the laws of logarithms to evaluate logarithmic expressions Expand and combine logarithmic expressions Concept check: How do the laws of exponents give rise to the laws of logarithms? Advanced Algebra – Chapter 9 Advanced Algebra – Chapter 9 Brown – Chapter 5 Brown – Chapter 5 (4.3-D1) 6 Learning Objectives The student will … Unit 4: Exponential and Log Functions - continued 4.d Solve exponential and logarithmic equations. Compare and contrast the various methodologies. (4.3-A3, B1, B4, D3) 4.e Apply exponential and logarithmic functions to real-life situations. (4.3-A3, B1, B2, B4, D3) Content Outline Key Definitions, Skills and Concepts Instructional Materials What is an exponential equation? What is a logarithmic equation? Skills check, ability to: Solve equations that involve variables in the exponent (algebraically) Solve equations that involve logarithms of a variable (algebraically) Solve more complicated compound interest problems (e.g. finding the term for an investment to double) Concept check: Why are logarithms useful in solving exponential equations? Describe the steps involved in solving a typical logarithmic equation. [FST] 4.8 (Solving Exponential Equations) Advanced Algebra – Chapter 9 Brown – Chapter 5 What is an exponential growth model? What is an exponential decay model? What are logarithmic scales? Skills check, ability to: Apply exponential growth models to real life situations: e.g. predicting the future (and past) size of a population growing exponentially Apply exponential decay models to real life situations: e.g. calculating the amount of mass remaining of a radioactively decaying substance after t units of time. Convert relative magnitudes measured in logarithmic scales to relative magnitudes measured in linear scales Concept check: What does it mean for something to grow or decay exponentially? How do we know we can use an exponential growth or decay function to model physical phenomena? Can a half-life decay model be alternatively expressed using a different decay factor? Give an example. Why are logarithmic scales useful? [FST] 4.4 (Finding Exponential Models) [FST] 4.9 (Exponential and Logarithmic Modeling) Advanced Algebra – Chapter 9 Brown – Chapter 5 7 Units 5 & 6: Trigonometric Ratios and Functions Learning Objectives The student will … 5.a Distinguish between the use of radian measure and that of degrees. They will use radian measure to calculate the size of an angle (or amount of rotation) and convert between degree and radian measure. They will recognize the significance of the differences in use. Content Outline Key Definitions, Skills and Concepts Instructional Materials What are radian and degree measures for angles? What are coterminal angles? What are arc length and sector areas? Skills check, ability to: Convert between degree and radian measure Find coterminal angles Find arc length and sector areas Concept check: Using a piece of string, demonstrate how to create an angle of measure 1, 2 and 3 radians on a circle. Hint: how is the radius of circle related to its circumference? In your own words, explain the concept of radian measure. Hint: Think about a circle of radius 1. [FST] 5.1 (Measures of Angles and Rotations), [FST] 5.2 (Lengths of Arcs and Areas of Sectors) What are the six right triangle trigonometric ratios? What are special triangles? [FST] 5.3 (Trigonometric Ratios of Acute Angles) (4.3-B4, D1, D2) 5.b Investigate the origins and procedures used with the trigonometric ratio of an acute angle inside a right triangle. (4.3-B4, D1, D2) 5.c Illustrate techniques in finding the value of the trigonometric function of an angle (of any size). (4.3-B4, D1, D2) Skills check, ability to: Find exact values of the trigonometric ratios when given two lengths of a right triangle Use the trigonometric ratios to solve right triangles Find the trigonometric values of special right triangles (45-45-90 and 30-60-90) without the use of a calculator Use the inverse function on the calculator to solve for angles in applications problems Concept check: Justify why trigonometric ratios within a right triangle makes sense using the geometric theorem of similarity. What are the six trigonometric ratios as defined when the angle is placed in standard position? What is a reference angle? Skills check, ability to: Find reference angle for any angle in standard position Find the exact value of any special angle, including nonacute special angles Determine in what quadrant an angle must lie given the signs of the trigonometric functions Find the exact values of the trig functions when given one of the values Find the area of a triangle using the SAS formula Concept check: To determine sin 150, sin 210, sin 330 and sin 570, I only need to know the value of sin 30. Is this true or false and why? [FST] 5.4 (The Sine, Cosine and Tangent Functions), [FST] 5.5 (Exact Values of Trigonometric Functions) 8 Learning Objectives The student will … Unit 5: Trigonometric Ratios and Functions - continued 5.d Illustrate the use of the unit circle to find the trigonometric ratios of a given angle (of any size) and find the terminal point of a given rotation around the unit circle. (4.3-B4, D1, D2) Content Outline Key Definitions, Skills and Concepts What is the unit circle? What are the even/odd properties? Skills check, ability to: Use the unit circle to find the values of the six trig functions for special angles Find a terminal point on the unit circle when given a variety of information Concept Check: How are the trig functions defined for the unit circle and how is this consistent with the definitions we have seen so far? If you are told to compare cos 77 and cos 82 and say which one is bigger without using a calculator. How would you do it? 5.e Recognize and sketch graphs of trigonometric functions (comparing their structures) and identify their key attributes (e.g. amplitude, period). (4.3-B4, D1, D2) What is a periodic graph? What is meant by amplitude and period? 5.f Explain the use of the Law of Sines and the Law of Cosines to solve real - world problems involving triangles. What is the Law of Sines? What is the Law of Cosines? (4.3-B4, D1, D2) Instructional Materials [FST] 5.5 (Exact Values of Trigonometric Functions), [FST] 5.7 (Properties of Sines, Cosines and Tangents) [FST] 5.6 (Graphs of the Sine, Cosine and Tangent Functions), Skills check, ability to: Recognize the graphs of the three major trigonometric functions State the amplitude and period of a given trigonometric function Write the trigonometric function for a given graph Concept Check: Why is the graph of any trignometric function periodic? How do the period and amplitude relate to our earlier studies of transforming functions? [FST] 5.8 (The Law of Cosines), [FST] 5.9 (The Law of Sines) Skills check, ability to: Use the Law of Sines and Law of Cosines to solve for all possible triangles when given a set of conditions Use Law of Sines and Cosines to solve problems involving bearing and direction Concept Check: How is the Law of Cosines related to the Pythagorean theorem? 9 Unit 7: Sequences and Series Learning Objectives The student will … 7.a Recognize sequences and illustrate the use of summation notation; they will summarize use of sequences in both explicit and recursive forms. (4.3-A3) 7.b Distinguish between arithmetic and geometric sequences and find their formulas and partial/infinite sums Content Outline Key Definitions, Skills and Concepts What is a sequence? What are the terms of a sequence? What are the partial sums? What are explicit and recursive formulas? What is sigma notation? Instructional Materials [FST] 8.1 (Formulas for Sequences), [FST] 8.2 (Limits of Sequences) Skills check, ability to: Use a sequence's explicit rule to find any term of a sequence Find a sequence's explicit rule when given the terms of the sequence Use a recursive rule to find the first five terms of a sequence Write the recursive rule for a given sequence Find the limit of a sequence Find the partial sums of a sequence when given either its rule or the first few terms of the sequence Evaluate an expression using sigma notation Write a series in sigma notation Concept check: When a sequence is expressed with an explicit formula, what is the domain of that sequence? Is it possible to define a sequence both recursively and explicitly? What are arithmetic and geometric sequences? What are the formulas for the partial sums of arithmetic and geometric series? What is the formula for the sum of an infinite geometric series? [FST] 8.3 (Arithmetic Series), [FST] 8.4 Geometric Series), [FST] 8.5 Infinite Series Skills check, ability to: Find explicit and recursive formulas for given arithmetic and geometric sequences (4.3-A3) 7.c Demonstrate facility and comprehension in the expansion of binomial expressions using the Binomial Theorem. They will apply their insights and methodologies to the real world. (4.3-A3) What is the binomial theorem? What is Pascal's Triangle? What is factorial? What is nCr? Skills check, ability to: Expand a binomial expression using the binomial theorem and either Pascal's triangle or nCr Use the binomial theorem to find just one specified term of the expansion of a given binomial expression Factor an expression using the binomial theorem Concept check: Why is the binomial theorem an easier way to expand binomial expressions? How does one construct Pascal's Triangle and what are some of the other interesting properties of the triangle? 10 Unit 8: Probability and Counting To be covered if time permits Learning Objectives The student will … 9.a Explain methods of calculating simple probabilities by counting the number of favorable events and the size of the sample space. (4.4-B1, B3, B4, B5, B6) 9.b Compute probabilities using addition and/or multiplication counting principles. (4.4-B1, B3, B4, B5, B6) 9.c Model situations involving probability with simulations (using spinners, dice, calculators and computers) and theoretical models, and solve problems using these models. Content Outline Key Definitions, Skills and Concepts What is the definition of sample space? What is the definition of a favorable event? What is meant by a fair event? Instructional Materials [FST] 7-1 (Probability of a Simple, Discrete Event) Skills check, ability to: List all the outcomes of sample space for a given probabilistic experiment List all the favorable events for a given probabilistic experiment Compute simple probabilities from knowledge of the size of favorable events and size of the sample space Concept check: Why are values of probabilities always inclusively between zero and one? Explain what is wrong, if anything, with the following statement: I flip a coin three times and it comes up head two times, the probability of getting heads must be 2/3? What is the addition counting principle? What is the multiplication counting principle? What is a mutually exclusive event? What is a complementary event? Skills check, ability to: Compute probabilities using addition counting principles Determine whether events are mutually exclusive Identify complementary events Concept check: Why does the addition counting principle require the subtraction of the intersection of the added events? What is an independent event? What is a dependent event? What is a conditional probability? [FST] 7-2 (Addition Counting Principles) [FST] 7-3 (Multiplication Counting Principles) [FST] 7-4 (Compound Events) Skills check, ability to: Determine whether events are independent or dependent Concept check: When is P(A)*P(B/A) equivalent to finding P(A)*P(B)? (4.4- B4) 11 Learning Objectives The student will … 9.d Distinguish between permutations and combinations and compute permutations and combinations. (4.4-C1, C2, C3, C4) Unit 9: Probability and Counting continued Content Outline Key Definitions, Skills and Concepts What is a permutation? What is a combination? Skills check, ability to: Find the number of ways to arrange or select objects when order matters Find the number of ways to arrange or select objects when order does not matter Concept check: What is the difference between a permutation and a combination? Why does the formula for combination involve an extra division by n factorial? What is Pascal’s Triangle? 9.e Construct and summarize preparation of Pascal’s Triangle and recognize its properties and significance. (4.4-C4) Skills check, ability to: Locate the numerical properties represented by the pattern in Pascal’s triangle. 9.f Interpret and explain the expansion of binomial expressions using the binomial theorem and determine probabilities in binomial experiments. What is the binomial theorem? What is a binomial probability? Instructional Materials [FST] 7-5 (Advanced Counting: Permutations) [FST] 8-6 (Advanced Counting: Combinations) [FST] 8-7 (Pascal’s Triangle) [FST] 8-8 (Binomial Theorem) [FST] 8-9 (Binomial Probabilities) Skills check, ability to: Expand binomials using “n choose r” Use the binomial theorem to solve counting problems Determine probabilities in situations involving binomial experiments (4.4-D2) 12 Unit Sequencing and Pacing Timeframe 12-2 Unit Sequencing and Pacing Quarter 1 Unit 1: Fundamentals 1.a Algebraic Notation and Manipulation (w/ focus on factoring) 1.b Rational Expressions 1.c Linear and Quadratic Equations 1.d Evaluating Expressions and Solving Absolute Value Equations . 1.e Quadratic Formula and Discriminant Unit 2: Functions 2.a Recognizing and evaluating functions 2.b Graphs of Functions 2.c Combinations and compositions of functions 2.d One-to-One Functions and their Inverses Quarter 2 Unit 3: Polynomial Functions 3.d Complex Number Operations and Solutions Unit 4: Exponential and Log Functions 4.a Exponential Functions 4.b Logarithmic Functions 4.c Laws of Logarithms 4.d Solving Exponential and Logarithmic Equations 4.e Modeling with Exponential and Logarithmic Functions Unit 5: Trigonometric Ratios and Functions 5.a Angle Measure: Radians and Degrees 5.b Right Triangle Trigonometry 5.c Trigonometric Functions of Angles (of Any Size) Midterm Quarter 3 Unit 5: Trigonometric Ratios and Functions 5.d The Unit Circle 5.e Graphing Trigonometric Functions 5.f Law of Sines and Law of Cosines Unit 6: Analytic Trigonometry (included in Unit 5) Quarter 4 Unit 7: Sequences and Series 7.a Sequence Formulas and Limits of a Sequence 7.b Arithmetic, Geometric and Infinite Series Unit 8: Probability and Counting (time permitting) 9.a Probability of a Simple, Discrete Event 9.b Addition and Multiplication Counting Principles 9.c Compound Events 9.d Advanced Counting: Permutations and Combinations 9.e Pascal’s Triangle 9.f Binomial Theorem and Binomial Probabilities Final 13