Huntsville City Schools - Instructional Guide 2015 - 2016 Course: Algebra 1B Grade: 10 Math Practices Online Resources The Standards for Mathematical Practice describe varieties of expertise that mathematics educators at all levels should seek to develop in their students. These practices rest on important “processes and proficiencies” with longstanding importance in mathematics education. The first of these are the NCTM process standards of problem solving, reasoning and proof, communication, representation, and connections. The second are the strands of mathematical proficiency specified in the National Research Council’s report Adding It Up: adaptive reasoning, strategic competence, conceptual understanding (comprehension of mathematical concepts, operations and relations), procedural fluency (skill in carrying out procedures flexibly, accurately, efficiently and appropriately), and productive disposition (habitual inclination to see mathematics as sensible, useful, and worthwhile, coupled with a belief in diligence and one’s own efficacy). Dan Meyer’s Ted Talk about teaching math: https://youtu.be/qocAoN4jNwc Links to his 3-act activities, sorted by standard: https://docs.google.com/spreadsheet/ccc?key=0AjIqyKM9d7ZYd EhtR3BJMmdBWnM2YWxWYVM1UWowTEE#gid=0 Granite City Math Vocabulary: http://www.graniteschools.org/mathvocabulary/ 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4. Model with mathematics 5. Use appropriate tools strategically. 6. Attend to precision. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning For more: Other online resources 1 Elaboration on each practice from the Common Core website: www.corestandards.org/Math/Practice/ www.opencurriculum.org is a website that curates activities from all over the web, sorted by standard. Kid-friendly language: www.buncombe.k12.nc.us/Page/37507 http://map.mathshell.org/lessons.php has great formative assessments and group activities, searchable by standard. Online tools www.desmos.com is a free online calculator. Excellent for working with linear equations, scatterplots, and best-fit lines. https://teacher.desmos.com/ has some great activities for introducing and working with functions. www.geogebra.org is a free online geometry tool. It is great for working with transformations. FIRST NINE WEEKS Unit 1 – Algebra IA Review Standard “I Can” Statements (To be completed by School Teams) Resources Solving Equations Solving Inequalities Functions Linear Functions Systems of Equations Pacing Recommendation / Date(s) Taught 5 days 5 days 2 days 5 days 5 days Unit 2 – Exponents and Exponential Functions Standard “I Can” Statements Resources 2 (To be completed by School Teams) ALCOS #1 (N-RN1) Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents. ALCOS #2 (N-RN2) Rewrite expressions involving radicals and rational exponents using the properties of exponents. ALCOS 33 (F-IF9) Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). Ch. 7.1, Ch. 7.2, Ch. 7.3, Ch. 7.4 Pacing Recommendation / Date(s) Taught Unit 7 Pacing: 28 days Ch. 7.5 Ch. 7.6 and Ch. 7.7 F-IF7e Graph Exponential….Function Showing intercepts and end behavior. 7.6 ALCOS 23 (A-REI11): 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 equation f(x) = g(x); find the solutions approximately. Include cases where f(x) and/or g(x) are exponential or logarithmic functions. 3 ALCOS 32b (F-IF8b) Use the properties of exponents to interpret expressions for exponential functions. ALCOS 34 (F-BF1) Write a function that describes a relationship between two quantities. ALCOS 7 [A-SSE1] Interpret expressions that represent a quantity in terms of its context. ALCOS 7b [A-SSE1b] Interpret complicated expressions by viewing one or more of their parts as a single entity. Example: Interpret P(1+r)n as the product of P and a factor not depending on P ALCOS 40 (F-LE5): Interpret the parameters in a linear or exponential function in terms of a context. ALCOS 35 (F-BF2) Write arithmetic and geometric sequences both recursively and with an explicit formula, use them to model situations, and translate between the two forms. Ch. 7.8 ALCOS 38 (F-LE2): Construct linear and exponential functions, including arithmetic 4 and geometric sequences, given a graph, a description of a relationship, or two inputoutput pairs. ALCOS 34 (F-BF1): Write a function that describes a relationship between two quantities. ALCOS 34a (F-BF1a): Determine and explicit expression, a recursive process, or steps for calculation from a context. ALCOS 27 (F-IF3): Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers. Quality Core Standards: C.1.b. Translate real-world problems into expressions using variables to represent values F.1.a. Use properties of exponents (including zero and negative exponents) to evaluate and simplify expressions Helpful Resources for Ch. 7: 1. LTF: ALCOS #12, #13, and #4: Exponential Function 5 Exploration (2 days); ALCOS #12: Exponential Growth (2 days) FIRST BENCHMARK ASSESSMENT 6 Huntsville City Schools - Instructional Guide 2015 - 2016 Course: Algebra 1B Grade: 10 SECOND NINE WEEKS Unit 8 – Polynomials and Factoring Standard ALCOS 10 (A-APR1) 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. ALCOS 7 a. (A-SSE1a) Interpret parts of an expression such as terms, factors, and coefficients. “I Can” Statements * Resources Ch. 8.1, Ch. 8.2, Ch. 8.3, Ch. 8.4 Ch. 8.5, Ch. 8.6, Ch. 8.7, Ch. 8.8 Pacing Recommendation / Date(s) Taught Ch. 8.1 (1 Day) Ch. 8.2(1 Day) Ch. 8.3(2 Day w/graphing calculator practice) Ch. 8.4(1 Day) Unit 8 Pacing: 30 days ALCOS 8 (A-SSE2): Use the structure of an expression to identify ways to rewrite it. Example: See x4 – y4 as (x2)2 – (y2) 2, thus recognizing it as a difference of squares that can be factored as (x2 – y2)(x2 + y2). Quality Core Standards: C.1.a Solve single-step and multistep equations and inequalities in one variable 7 C.1.b Solve equations that contain absolute value C.1.c Solve formulas for a specified variable C.1.d Write and graph linear equations and inequalities from real-world situations (e.g., a constant-rate distance/time problem) C.1.e Write linear equations in standard form and slopeintercept form when given two points, a point and the slope, or the graph of the equation C.1.f Identify, formulate, and obtain solutions to problems involving direct and inverse variation E.1.a Factor perfect square trinomials and the difference of two squares E.1.b Factor trinomials in the forms ax2 + bx + c F.1.a Use properties of exponents (including zero and negative exponents) to evaluate and simplify expressions LTF: none SECOND BENCHMARK ASSESSMENT 8 Huntsville City Schools - Instructional Guide 2015 - 2016 Course: Algebra 1B Grade: 10 THIRD NINE WEEKS Unit 9 – Quadratic Functions and Equations Standard ALCOS 13 (A-CED2): Create equations in two or more variables to represent relationships between quantities: graph equations on coordinate axes with labels and scales. “I Can” Statements * Resources Ch. 9.1 and Ch. 9.2 Pacing Recommendation / Date(s) Taught Unit 9 Pacing: 30 days ALCOS 31a (F-IF7a) Graph linear and quadratic functions, and show intercepts, maxima, and minima. ALCOS 30(F-IF6): Calculate and interpret the average rate of change of a function over a specified interval. Estimate the rate of change from a graph. ALCOS 31 (F-IF7): Graph functions expressed symbolically and show key features of the graph, by hand 9 in simple cases and using technology for more complicated cases. ALCOS 33 (F-IF9) Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). ALCOS 34 (F-BF1) Write a function that describes a relationship between two quantities. ALCOS 36 (F-BF3): Identify the effect on the graph of transformations. Experiment with cases and illustrate the effects on the graph using technology. ALCOS 39 (F-LE3) Observe, using graphs and tables, that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function. ALCOS 18b (A-RE14b) Solve quadratic equations by inspection (e.g. for x2 = 49), taking square roots, completing the square and the quadratic formula, and factoring as appropriate to the Ch. 9.3 and Ch. 9.4 10 initial form of the equation. Recognize when the quadratic formula gives complex solutions, and write them as a + bi for real numbers a and b. ALCOS 9 (A-SSE3): Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. ALCOS 9a(A-SSE3a): Factor a quadratic expression to reveal the zeros of the function it defines. ALCOS 9b(A-SSE3b): Factor a quadratic expression to reveal the zeros of the function it defines. ALCOS 9c(AL standard): Determine a quadratic equation when given its graph or roots ALCOS 9d(A-SSE3c): Use the properties of exponents to transform expressions for exponential functions. Example: The expression 1.15t can be rewritten as (1.151/12)12t = 1.01212t to reveal the approximate equivalent monthly interest rate if the annual rate is 15%. 11 ALCOS 16 (A-REI1): Explain each step in solving a simple equation as following form the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. CH. 9.5 ALCOS 18 (A-REI4): Solve quadratic equations in one variable. ALCOS 32 (F-IF8): Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. ALCOS 32a (F-IF8a): 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. ALCOS 31a (F-IF8a) Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and 12 interpret these in terms of a context. ALCOS 18a (A-RE14a) Use a method of completing the square to transform any quadratic equation in x into an equation of the form (x – p)2 = q that has the same solutions. Derive the quadratic formula from this form. ALCOS 34b (F-BF1b): Combine standard function types using arithmetic operations. Ch. 9.6 Ch. 9.7 ALCOS 37a (F-LE1a) Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals. ALCOS 37 [F-LE1] Distinguish between situations that can be modeled with linear functions and with exponential functions. ALCOS 37c [F-LE1c] Recognize situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another. ALCOS 45a (S-ID6a) Fit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given function or 13 choose a function suggested by the context. Emphasize linear, quadratic, and exponential models. ALCOS 45b (S-ID6b) Informally assess the fit of a function by plotting and analyzing residuals. ALCOS 21 (A-REI7) Solve a simple system of linear equation and quadratic equations in two variables algebraically and graphically. Ch. 9.8 ALCOS 14 (A-CED3): 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. Example: represent inequalities describing nutritional and cost constraints on combinations of different foods. Quality Core Standards: E.1.c. Solve quadratic equations using multiple methods, including graphing, factoring, and the square root principle E.2.a Identify graphs of quadratic functions E.2.b Relate factors, solutions (roots), zeros of related functions, and x-intercepts in 14 equations that arise from quadratic functions Helpful Resources for Ch. 9: 1. LTF: ALCOS #31a and #36 (linear only): Translations of Linear Functions (2.5 days); ALCOS#34, #40, and #6: Study of Population Growth (2 or 3 days; ALCOS #15: Literal Equations – Geometric FormulasProblem 2 ab (15 min); ALCOS#9c, #13, #28, and #36: Investigation – Graphing Quadratic Functions; ALCOS#29 and 31a: Graphing Quadratic 15 Functions – Example 1 (2 days); ALCOS#7a, #7b, #9a, and #18b: Another Way to Look at Factoring (2 days); ALCOS#12, #29, #32a, and #33: Graphing Quadratic Functions – Example 2 and Problems #1 and #2 (3 days); ALCOS# 31a, #28, and #30: Adaptation of AP Calculus 1997 AB-2 (2 days); ALCOS#28, #31b, #13, and #29: Adaptation of Algebra I 2007 EOC Free Response (2 days) 16 Unit 10 – Radical Expressions and Equations Standard ALCOS 31b (F-IF7b) Graph square root, cube root, and piecewise-defined functions, including step functions and absolute value functions. “I Can” Statements * Resources Ch. 10.1, 10.2, and 10.5 Pacing Recommendation / Date(s) Taught Unit 10 Pacing: 12 days **Please note 1. 10.1 is not required for high school. 2. Graphing Calculators are a great resource for section 10.5 Quality Core Standards: F.1.a Use properties of exponents (including zero and negative exponents) to evaluate and simplify expressions F.1.d Find rational number square roots (without calculators) and approximate irrational square roots (with and without calculators) F.1.e Evaluate and simplify radical expressions F.1.f Multiply radical expressions F.1.g Simplify an algebraic quotient by rationalizing an irrational monomial denominator 17 Helpful Notes/Resources for Ch. 10: 8th Grade ALCOS #23: Pythagorean Theorem Applications Problems 1 – 4(1 day) THIRD BENCHMARK ASSESSMENT 18 Huntsville City Schools - Instructional Guide 2015 - 2016 Course: Algebra 1B Grade: 10 FOURTH NINE WEEKS Unit 11 – Radical Expressions and Functions Standard ALCOS 11 (A-APR7) 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. ALCOS 12 (A-CED1) Create equations and inequalities in one variable, and use them to solve problems. Include equations rising from linear and quadratic functions, and simple rational and exponential functions. ALCOS 29 (F-IF5) Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. “I Can” Statements * Resources Ch. 11.1, 11.2, 11.3 and Ch. 11.4 **Please Note: 11.1 is not a standard but prepares for 11.2. Pacing Recommendation / Date(s) Taught Unit 11 Pacing: 25 days Ch. 11.5 Ch. 11.6 19 ALCOS 28 (F-IF4) 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. Key features include intercepts; relative maximums and minimums; symmetries; end behavior; and periodicity. Quality Core Standards: F.1.a Use properties of exponents (including zero and negative exponents) to evaluate and simplify expressions F.1.b Evaluate and simplify rational expressions F.1.c Add, subtract, multiply, and divide rational expressions F.1.d Find rational number square roots (without calculators) and approximate irrational square roots (with and without calculators) F.1.e Evaluate and simplify radical expressions F.1.f Multiply radical expressions Ch. 11.7 Helpful Resources for Ch. 11: LTF: ALCOS #28: Analysis of Functions (2 days); ALCOS#13 and #28: Quadratic 20 Optimization (2 days); ALCOS #14, #22, #28, #28, #31b, and #36: Characteristics of Functions (3 days); ALCOS#35: Transformations of Functions Explorations (2 days); ALCOS#31b and #36: Even/Odd Functions (2days) Unit 12 – Data Analysis and Probability Standard ALCOS 41 (S-ID1) Represent data with plots on the real number line (dot plots, histograms, and box plots). ALCOS 45 (S-ID6): Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. ALCOS 42 (S-ID2) Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets. “I Can” Statements * Resources Ch. 12.2 Pacing Recommendation / Date(s) Taught Unit 12 Pacing: 13 days Ch. 12.3 and Ch. 12.4 Ch. 12.5 ALCOS 43 (S-ID3) Interpret differences in shape, center, and spread in the context of 21 the data sets, accounting for possible effects of extreme data points (outliers). ALCOS 44 (S-ID5) 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. ALCOS 47 (S-CP2) Understand that two events A and B are independent if the probability of A and B occurring together is the product of their probabilities, and use this characterization to determine if they are independent. Quality Core Standards: G.1.a Identify the effect on mean, median, mode, and range when a set of data is changed G.1.b Interpret data from line, bar, and circle graphs, histograms, scatterplots, boxand-whisker plots, stem-andleaf plots, and frequency tables to draw inferences and make predictions G.1.c Identify arithmetic sequences and patterns in a set of data Ch. 12.8 1 Day 22 G.1.d Identify patterns of growth (e.g., patterns of exponential growth) in a set of data G.1.e Find the probability of a simple event G.1.f Distinguish between independent and dependent events G.1.g Identify an approximate line of best fit to model data and make predictions G.1.h Identify the most efficient way to display data Helpful Resources for Ch. 12: 8th Grade ALCOS #26, #27, #28: Fitting a Line to Data (2 days); ALCOS#41: Use Dot Plots to Determine Mean, Median, Mode and Range (1 day); ALCOS#41: Bar Graphs and Histograms (.5 day); ALCOS#43: Measures of Central Tendencies (1 day); ALCOS#41: Box and Whisker Plots (.5 day); ALCOS#4 and #42: Linear Functions, Transformations, and Graphical Displays Part 1 only (.5 day); ALCOS#44 and #47: The Jury (2 days) 23 QUALITY CORE TEST AND FINAL EXAM Overall Algebra 1 Helpful Resources: 1. Cumulative Reviews at end of sections. Helpful in teacher book for list of standards next to questions. 2. Interactmath.com, commoncorepal.com, and poweralgbra.com are good resources for practice and review. 3. Concept Bytes are located at the end of each chapter for in-depth practice problems. **Please Note: For each chapter, the “Total Days” includes one day for review and one day for testing of the chapter. 24