Arkansas

HSN Number and Quantity

• HSN.RN The Real Number System

  • HSN.RN.A Extend the properties of exponents to rational exponents

    • HSN.RN.A.1 Explain how extending the properties of integer exponents to rational exponents provides an alternative notation for radicals.

      • Evaluate rational exponents (A2-N.1)

    • HSN.RN.A.2 Rewrite expressions involving radicals and rational exponents using the properties of exponents.

      • Multiplication with rational exponents (A2-N.2)
      • Division with rational exponents (A2-N.3)
      • Power rule (A2-N.4)
      • Simplify expressions involving rational exponents I (A2-N.5)
      • Simplify expressions involving rational exponents II (A2-N.6)

  • HSN.RN.B Use properties of rational and irrational numbers

    • HSN.RN.B.4 Simplify radical expressions. Perform operations (add, subtract, multiply, and divide) with radical expressions. Rationalize denominators and/or numerators.

      • Roots of integers (A2-M.1)
      • Roots of rational numbers (A2-M.2)
      • Find roots using a calculator (A2-M.3)
      • Simplify radical expressions with variables I (A2-M.4)
      • Simplify radical expressions with variables II (A2-M.5)
      • Nth roots (A2-M.6)
      • Multiply radical expressions (A2-M.7)
      • Simplify radical expressions involving fractions (A2-M.8)
      • Add and subtract radical expressions (A2-M.9)
      • Simplify radical expressions using the distributive property (A2-M.10)
      • Simplify radical expressions using conjugates (A2-M.11)

• HSN.Q Quantities

  • HSN.Q.A Reason quantitatively and use units to solve problems

    • HSN.Q.A.2 Define appropriate quantities for the purpose of descriptive modeling. (I.E., Use units appropriate to the problem being solved.)

      • Multi-step problems with unit conversions (A1-E.4)
      • Solve one-step and two-step equations: word problems (A2-B.2)
      • Solve a system of equations using any method: word problems (A2-E.11)

• HSN.CN The Complex Number System

  • HSN.CN.A Perform arithmetic operations with complex numbers

    • HSN.CN.A.1 Know there is a complex number i such that i² = –1, and every complex number has the form a + bi with a and b real.

      • Introduction to complex numbers (A2-I.1)

    • HSN.CN.A.2 Use the relation i² = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.

      • Add and subtract complex numbers (A2-I.2)
      • Multiply complex numbers (A2-I.4)

    • HSN.CN.A.3 Find the conjugate of a complex number. Use conjugates to find quotients of complex numbers.

      • Complex conjugates (A2-I.3)
      • Divide complex numbers (A2-I.5)
      • Add, subtract, multiply, and divide complex numbers (A2-I.6)

  • HSN.CN.C Use complex numbers in polynomial identities and equations

    • HSN.CN.C.7 Solve quadratic equations with real coefficients that have real or complex solutions.

      • Solve a quadratic equation using square roots (A2-K.6)
      • Solve a quadratic equation by factoring (A2-K.8)
      • Solve a quadratic equation by completing the square (A2-K.10)
      • Solve a quadratic equation using the quadratic formula (A2-K.11)
      • Using the discriminant (A2-K.12)

    • HSN.CN.C.8 Extend polynomial identities to the complex numbers.

      • Solve polynomial equations (A2-L.8)
      • Complex conjugate theorem (A2-L.12)
      • Conjugate root theorems (A2-L.13)

    • HSN.CN.C.9 Know the Fundamental Theorem of Algebra. Show that it is true for quadratic polynomials.

      • Fundamental Theorem of Algebra (A2-L.17)

• HSN.VM Vector and Matrix Quantities

  • HSN.VM.C Perform operations on matrices and use matrices in applications

    • HSN.VM.C.6 Use matrices to represent and manipulate data (e.g., to represent payoffs or incidence relationships in a network).

    • HSN.VM.C.7 Multiply matrices by scalars to produce new matrices (e.g., as when all of the payoffs in a game are doubled).

      • Multiply a matrix by a scalar (A2-G.4)

    • HSN.VM.C.8 Add, subtract, and multiply matrices of appropriate dimensions.

      • Matrix operation rules (A2-G.2)
      • Add and subtract matrices (A2-G.3)
      • Add and subtract scalar multiples of matrices (A2-G.5)
      • Multiply two matrices (A2-G.6)
      • Simplify matrix expressions (A2-G.7)

    • HSN.VM.C.9 Understand that, unlike multiplication of numbers, matrix multiplication for square matrices is not a commutative operation, but still satisfies the associative and distributive properties.

      • Properties of matrices (A2-G.8)

    • HSN.VM.C.10 Understand that: The zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in the real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse.

      • Determinant of a matrix (A2-G.10)
      • Is a matrix invertible? (A2-G.11)
      • Inverse of a matrix (A2-G.12)
      • Identify inverse matrices (A2-G.13)
      • Solve matrix equations using inverses (A2-G.14)

    • HSN.VM.C.12 Work with 2 × 2 matrices as transformations of the plane, and interpret the absolute value of the determinant in terms of area.

      • Identify transformation matrices (A2-G.15)
      • Transformation matrices: write the vertex matrix (A2-G.16)
      • Transformation matrices: graph the image (A2-G.17)

HSA Algebra

• HSA.SSE Seeing Structure in Expressions

  • HSA.SSE.A Interpret the structure of expressions

    • HSA.SSE.A.1 Interpret expressions that represent a quantity in terms of its context. Interpret parts of an expression using appropriate vocabulary, such as terms, factors, and coefficients. Interpret complicated expressions by viewing one or more of their parts as a single entity.

      • Factor using a quadratic pattern (A2-J.4)
      • Polynomial vocabulary (A2-L.1)

    • HSA.SSE.A.2 Use the structure of an expression to identify ways to rewrite it.

      • Factor using a quadratic pattern (A2-J.4)
      • Pascal's triangle and the Binomial Theorem (A2-L.19)
      • Binomial Theorem I (A2-L.20)
      • Binomial Theorem II (A2-L.21)
      • Simplify radical expressions with variables I (A2-M.4)
      • Simplify radical expressions with variables II (A2-M.5)
      • Simplify radical expressions using conjugates (A2-M.11)
      • Simplify expressions involving rational exponents I (A2-N.5)
      • Simplify expressions involving rational exponents II (A2-N.6)
      • Simplify rational expressions (A2-O.4)

  • HSA.SSE.B Write expressions in equivalent forms to solve problems

    • HSA.SSE.B.3 Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. Factor a quadratic expression to reveal the zeros of the function it defines. Complete the square in a quadratic expression to reveal the maximum or minimum value of the function it defines. Use the properties of exponents to transform expressions for exponential functions.

      • Properties of exponents (G-A.5)
      • Factor quadratics (A2-J.3)
      • Solve a quadratic equation by factoring (A2-K.8)
      • Complete the square (A2-K.9)
      • Evaluate rational exponents (A2-N.1)
      • Multiplication with rational exponents (A2-N.2)
      • Division with rational exponents (A2-N.3)
      • Power rule (A2-N.4)
      • Simplify expressions involving rational exponents I (A2-N.5)
      • Simplify expressions involving rational exponents II (A2-N.6)
      • Solve exponential equations by rewriting the base (A2-T.5)

• HSA.APR Arithmetic with Polynomials and Rational Expressions

  • HSA.APR.A Perform arithmetic operations on polynomials

    • HSA.APR.A.1 Add, subtract, and multiply polynomials. Understand that polynomials, like the integers, are closed under addition, subtraction, and multiplication.

      • Add and subtract polynomials (A2-L.2)
      • Multiply polynomials (A2-L.3)

  • HSA.APR.B Understand the relationship between zeros and factors of polynomials

    • HSA.APR.B.2 Know and apply the Factor and Remainder Theorems: For a polynomial p(x) and a number a, the remainder on division by x - a is p(a), so p(a) = 0 if and only if (x - a) is a factor of p(x).

      • Write a quadratic function from its zeros (A2-K.16)
      • Divide polynomials using long division (A2-L.4)
      • Divide polynomials using synthetic division (A2-L.5)
      • Evaluate polynomials using synthetic division (A2-L.7)
      • Find the roots of factored polynomials (A2-L.9)
      • Write a polynomial from its roots (A2-L.10)

    • HSA.APR.B.3 Identify zeros of polynomials when suitable factorizations are available. Use the zeros to construct a rough graph of the function defined by the polynomial.

      • Solve a quadratic equation using the zero product property (A2-K.7)
      • Match quadratic functions and graphs (A2-K.14)
      • Find the roots of factored polynomials (A2-L.9)
      • Match polynomials and graphs (A2-L.15)

  • HSA.APR.C Use polynomial identities to solve problems

    • HSA.APR.C.4 Prove polynomial identities and use them to describe numerical relationships.

      • Factor sums and differences of cubes (A2-J.6)
      • Add and subtract polynomials (A2-L.2)
      • Multiply polynomials (A2-L.3)

  • HSA.APR.D Rewrite rational expressions

    • HSA.APR.D.6 Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) + r(x)/b(x), (where a(x) is the dividend, b(x) is the divisor, q(x) is the quotient, and r(x) is the remainder) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system.

      • Divide polynomials using long division (A2-L.4)
      • Divide polynomials using synthetic division (A2-L.5)

    • HSA.APR.D.7 Add, subtract, multiply, and divide by nonzero rational expressions. Understand that rational expressions, like the integers, are closed under addition, subtraction, and multiplication.

      • Multiply and divide rational expressions (A2-O.5)
      • Add and subtract rational expressions (A2-O.6)

• HSA.CED Creating Equations

  • HSA.CED.A Create equations that describe numbers or relationships

    • HSA.CED.A.1 Create equations and inequalities in one variable and use them to solve problems.

      • Write inequalities from graphs (A2-C.2)
      • Solve quadratic equations: word problems (A2-K.)
      • Write exponential functions: word problems (A2-T.)

    • HSA.CED.A.2 Create equations in two or more variables to represent relationships between quantities. Graph equations, in two variables, on a coordinate plane.

      • Graph a linear function (A2-D.9)
      • Write the equation of a linear function (A2-D.10)
      • Graph an absolute value function (A2-D.13)
      • Graph a quadratic function (A2-K.5)
      • Match quadratic functions and graphs (A2-K.14)
      • Write a quadratic function from its zeros (A2-K.16)
      • Write a quadratic function from its vertex and another point (A2-K.17)
      • Write and solve direct variation equations (A2-R.1)
      • Write and solve inverse variation equations (A2-R.2)
      • Match exponential functions and graphs (A2-T.4)

    • HSA.CED.A.3 Represent and interpret constraints by equations or inequalities, and by systems of equations and/or inequalities. Interpret solutions as viable or nonviable options in a modeling and/or real-world context.

      • Write a linear inequality: word problems (A2-C.3)
      • Graph a two-variable linear inequality (A2-C.8)
      • Solve a system of equations by graphing: word problems (A2-E.3)
      • Solve a system of equations using substitution: word problems (A2-E.7)
      • Solve a system of equations using elimination: word problems (A2-E.9)
      • Solve a system of equations using any method: word problems (A2-E.11)
      • Solve systems of linear inequalities by graphing (A2-F.2)
      • Solve systems of linear and absolute value inequalities by graphing (A2-F.3)
      • Find the vertices of a solution set (A2-F.4)
      • Linear programming (A2-F.5)

    • HSA.CED.A.4 Rearrange literal equations using the properties of equality.

      • Solve multi-variable equations (A2-B.6)

• HSA.REI Reasoning with Equations and Inequalities

  • HSA.REI.A Understand solving equations as a process of reasoning and explain the reasoning

    • HSA.REI.A.1 Assuming that equations have a solution, construct a solution and justify the reasoning used.

      • Solve equations: complete the solution (A2-B.3)

    • HSA.REI.A.2 Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.

      • Solve radical equations (A2-M.14)
      • Solve rational equations (A2-O.7)

  • HSA.REI.B Solve equations and inequalities in one variable

    • HSA.REI.B.4 Solve quadratic equations in one variable. Use the 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. Solve quadratic equations (as appropriate to the initial form of the equation) by: inspection of a graph, taking square roots, completing the square, using the quadratic formula, factoring. Recognize complex solutions and write them as a ± bi for real numbers a and b.

      • Solve a quadratic equation using square roots (A2-K.6)
      • Solve a quadratic equation using the zero product property (A2-K.7)
      • Solve a quadratic equation by factoring (A2-K.8)
      • Complete the square (A2-K.9)
      • Solve a quadratic equation by completing the square (A2-K.10)
      • Solve a quadratic equation using the quadratic formula (A2-K.11)

  • HSA.REI.C Solve systems of equations and inequalities graphically

    • HSA.REI.C.5 Solve systems of equations in two variables using substitution and elimination. Understand that the solution to a system of equations will be the same when using substitution and elimination.

      • Solve a system of equations using substitution (A2-E.6)
      • Solve a system of equations using substitution: word problems (A2-E.7)
      • Solve a system of equations using elimination (A2-E.8)
      • Solve a system of equations using elimination: word problems (A2-E.9)

    • HSA.REI.C.6 Solve systems of equations algebraically and graphically.

      • Is (x, y) a solution to the system of equations? (A2-E.1)
      • Solve a system of equations by graphing (A2-E.2)
      • Solve a system of equations by graphing: word problems (A2-E.3)
      • Find the number of solutions to a system of equations (A2-E.4)
      • Solve a system of equations using any method (A2-E.10)
      • Solve a system of equations using any method: word problems (A2-E.11)

    • HSA.REI.C.7 Solve systems of equations consisting of linear equations and nonlinear equations in two variables algebraically and graphically.

      • Solve a system of linear and quadratic equations: parabolas (A2-E.16)
      • Solve a nonlinear system of equations (A2-E.18)

    • HSA.REI.C.8 Represent a system of linear equations as a single matrix equation in a vector variable.

    • HSA.REI.C.9 Find the inverse of a matrix if it exists and use it to solve systems of linear equations (using technology for matrices of dimension 3 × 3 or greater).

      • Inverse of a matrix (A2-G.12)
      • Solve matrix equations using inverses (A2-G.14)

  • HSA.REI.D Solve systems of equations

    • HSA.REI.D.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 equation f(x) = g(x); Find the solutions approximately by using technology to graph the functions, making tables of values, finding successive approximations. Include cases (but not limited to) where f(x) and/or g(x) are linear, polynomial, rational, exponential (Introduction in Algebra 1, Mastery in Algebra 2), logarithmic functions.

      • Solve a system of equations by graphing (A2-E.2)
      • Solve a system of equations by graphing: word problems (A2-E.3)
      • Find the number of solutions to a system of equations (A2-E.4)

    • HSA.REI.D.12 Solve linear inequalities and systems of linear inequalities in two variables by graphing.

      • Graph solutions to linear inequalities (A2-C.5)
      • Solve systems of linear inequalities by graphing (A2-F.2)

HSF Functions

• HSF.IF Interpreting Functions

  • HSF.IF.A Understand the concept of a function and use function notation

    • HSF.IF.A.3 Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers.

      • Find terms of an arithmetic sequence (A2-CC.1)
      • Find terms of a geometric sequence (A2-CC.2)
      • Evaluate explicit formulas for sequences (A2-CC.3)
      • Evaluate recursive formulas for sequences (A2-CC.4)
      • Classify formulas and sequences (A2-CC.5)
      • Write a formula for an arithmetic sequence (A2-CC.6)
      • Write a formula for a geometric sequence (A2-CC.7)
      • Write a formula for a recursive sequence (A2-CC.8)
      • Sequences: mixed review (A2-CC.12)

  • HSF.IF.B Interpret functions that arise in applications in terms of the context

    • HSF.IF.B.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.

      • Find the slope of a linear function (A2-D.8)
      • Graph a linear function (A2-D.9)
      • Characteristics of quadratic functions: graphs (A2-K.1)
      • Characteristics of quadratic functions: equations (A2-K.2)
      • Graph a quadratic function (A2-K.5)
      • Match quadratic functions and graphs (A2-K.14)
      • Match polynomials and graphs (A2-L.15)
      • Rational functions: asymptotes and excluded values (A2-O.1)
      • Classify variation (A2-R.3)
      • Find the constant of variation (A2-R.5)
      • Match exponential functions and graphs (A2-T.4)

    • HSF.IF.B.6 Calculate and interpret the average rate of change of a function (presented algebraically or as a table) over a specified interval. Estimate the rate of change from a graph.

      • Find the slope of a linear function (A2-D.8)
      • Average rate of change (A2-D.12)

  • HSF.IF.C Analyze functions using different representations

    • HSF.IF.C.7 Graph functions expressed algebraically and show key features of the graph, with and without technology. Graph polynomial functions, identifying zeros when suitable factorizations are available, and showing end behavior. Graph rational functions, identifying zeros and asymptotes when suitable factorizations are available, and showing end behavior. Graph exponential and logarithmic functions, showing intercepts and end behavior. Graph trigonometric functions, showing period, midline, and amplitude.

      • Graph a quadratic function (A2-K.5)
      • Match polynomials and graphs (A2-L.15)
      • Rational functions: asymptotes and excluded values (A2-O.1)
      • Match exponential functions and graphs (A2-T.4)
      • Find properties of sine functions (A2-AA.1)
      • Graph sine functions (A2-AA.4)
      • Find properties of cosine functions (A2-AA.6)
      • Graph cosine functions (A2-AA.9)
      • Graph sine and cosine functions (A2-AA.14)

    • HSF.IF.C.8 Write expressions for functions in different but equivalent forms to reveal key features of the function. Use the properties of exponents to interpret expressions for exponential functions.

      • Match exponential functions and graphs (A2-T.4)

• HSF.BF Building Functions

  • HSF.BF.A Build a function that models a relationship between two quantities

    • HSF.BF.A.1 Write a function that describes a relationship between two quantities. From a context, determine an explicit expression, a recursive process, or steps for calculation. Combine standard function types using arithmetic operations. (e.g., given that f(x) and g(x) are functions developed from a context, find (f + g)(x), (f – g)(x), (fg)(x), (f/g)(x), and any combination thereof, given g(x) ≠ 0.) Compose functions.

      • Add and subtract functions (A2-P.1)
      • Multiply functions (A2-P.2)
      • Divide functions (A2-P.3)
      • Composition of linear functions: find a value (A2-P.4)
      • Composition of linear functions: find an equation (A2-P.5)
      • Composition of linear and quadratic functions: find a value (A2-P.6)
      • Composition of linear and quadratic functions: find an equation (A2-P.7)
      • Write a formula for an arithmetic sequence (A2-CC.6)
      • Write a formula for a geometric sequence (A2-CC.7)
      • Write a formula for a recursive sequence (A2-CC.8)

    • HSF.BF.A.2 Write arithmetic and geometric sequences both recursively and with an explicit formula, and translate between the two forms. Use arithmetic and geometric sequences to model situations.

      • Write a formula for an arithmetic sequence (A2-CC.6)
      • Write a formula for a geometric sequence (A2-CC.7)
      • Write a formula for a recursive sequence (A2-CC.8)
      • Convert a recursive formula to an explicit formula (PC-W.6)
      • Convert an explicit formula to a recursive formula (PC-W.7)
      • Convert between explicit and recursive formulas (PC-W.8)

  • HSF.BF.B Build new functions from existing functions

    • HSF.BF.B.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 of the transformed functions. Experiment with multiple transformations and illustrate an explanation of the effects on the graph with or without technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them.

      • Function transformation rules (A2-Q.1)
      • Translations of functions (A2-Q.2)
      • Reflections of functions (A2-Q.3)
      • Dilations of functions (A2-Q.4)
      • Transformations of functions (A2-Q.5)
      • Describe function transformations (A2-Q.6)

    • HSF.BF.B.4 Find inverse functions. Solve an equation of the form y= f(x) for a simple function f that has an inverse and write an expression for the inverse. For example, f(x) = 2 x² or (x) = (x + 1)/(x– 1) for x ≠ 1. Verify by composition that one function is the inverse of another. (Algebra II) Read values of an inverse function from a graph or a table, given that the function has an inverse. (Algebra II) Produce an invertible function from a non-invertible function by restricting the domain.

      • Identify inverse functions (A2-P.8)
      • Find values of inverse functions from tables (A2-P.9)
      • Find values of inverse functions from graphs (A2-P.10)
      • Find inverse functions and relations (A2-P.11)

    • HSF.IF.B.5 Relate the domain of a function to its graph. Relate the domain of a function to the quantitative relationship it describes.

      • Domain and range (A2-D.1)
      • Domain and range of polynomials (A2-L.16)
      • Domain and range of radical functions (A2-M.12)
      • Domain and range of exponential and logarithmic functions (A2-T.1)

• HSF.LE Linear, Quadratic, and Exponential Models

  • HSF.LE.A Construct and compare linear, quadratic, and exponential models and solve problems

    • HSF.LE.A.2 Construct linear and exponential equations, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table).

      • Write the equation of a linear function (A2-D.10)
      • Write a formula for an arithmetic sequence (A2-CC.6)
      • Write a formula for a geometric sequence (A2-CC.7)

    • HSF.LE.A.4 Express exponential models as logarithms. Express logarithmic models as exponentials. Use properties of logarithms to simplify and evaluate logarithmic expressions (expanding and/or condensing logarithms as appropriate). Evaluate logarithms with or without technology.

      • Convert between exponential and logarithmic form: rational bases (A2-S.1)
      • Convert between natural exponential and logarithmic form (A2-S.2)
      • Convert between exponential and logarithmic form: all bases (A2-S.3)
      • Evaluate logarithms (A2-S.4)
      • Evaluate natural logarithms (A2-S.5)
      • Change of base formula (A2-S.6)
      • Evaluate logarithms using a calculator (A2-S.7)
      • Identify properties of logarithms (A2-S.8)
      • Product property of logarithms (A2-S.9)
      • Quotient property of logarithms (A2-S.10)
      • Power property of logarithms (A2-S.11)
      • Properties of logarithms: mixed review (A2-S.12)
      • Evaluate logarithms using properties (A2-S.13)

HSS Statistics and Probability

• HSS.ID Interpreting Categorical and Quantitative Data

  • HSS.ID.A Summarize, represent, and interpret data on a single count or measurement variable

    • HSS.ID.A.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 and/or spreadsheets to estimate areas under the normal curve.

      • Find probabilities using the normal distribution I (A2-EE.11)

  • HSS.ID.B Make inferences and justify conclusions from sample surveys, experiments and observational studies

    • HSS.ID.B.6 Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. Fit a function to the data; use functions fitted to data to solve problems in the context of the data.

      • Outliers in scatter plots (A2-FF.5)
      • Find the equation of a regression line (A2-FF.6)
      • Interpret regression lines (A2-FF.7)
      • Analyze a regression line of a data set (A2-FF.8)

• HSS.IC Making Inferences and Justifying Conclusions

  • HSS.IC.A Understand and evaluate random processes underlying statistical experiments

    • HSS.IC.A.1 Recognize statistics as a process for making inferences about population parameters based on a random sample from that population.

      • Identify biased samples (A2-FF.1)

    • HSS.IC.A.2 Compare theoretical and empirical probabilities using simulations (e.g. such as flipping a coin, rolling a number cube, spinning a spinner, and technology).

      • Theoretical probability (A1-LL.1)
      • Experimental probability (A1-LL.2)

  • HSS.IC.B Make inferences and justify conclusions from sample surveys, experiments and observational studies

    • HSS.IC.B.3 Recognize the purposes of and differences among sample surveys, experiments, and observational studies. Explain how randomization relates to sample surveys, experiments, and observational studies.

      • Experiment design (A2-FF.12)

    • HSS.IC.B.6 Read and explain, in context, the validity of data from outside reports by identifying the variables as quantitative or categorical, describing how the data was collected, indicating any potential biases or flaws, identifying inferences the author of the report made from sample data.

      • Identify biased samples (A2-FF.1)