Academic Standards

8.1.1: Read, write, compare, classify and represent real numbers, and use them to solve problems in various contexts.

8.1.1.2: Compare real numbers; locate real numbers on a number line. Identify the square root of a positive integer as an integer, or if it is not an integer, locate it as a real number between two consecutive positive integers.

Comparing and Ordering Decimals

Integers, Opposites, and Absolute Values

Rational Numbers, Opposites, and Absolute Values

Square Roots

8.1.1.4: Know and apply the properties of positive and negative integer exponents to generate equivalent numerical expressions.

Dividing Exponential Expressions

Exponents and Power Rules

Multiplying Exponential Expressions

Simplifying Algebraic Expressions II

8.1.1.5: Express approximations of very large and very small numbers using scientific notation; understand how calculators display numbers in scientific notation. Multiply and divide numbers expressed in scientific notation, express the answer in scientific notation, using the correct number of significant digits when physical measurements are involved.

8.2.1: Understand the concept of function in real-world and mathematical situations, and distinguish between linear and non-linear functions.

8.2.1.2: Use linear functions to represent relationships in which changing the input variable by some amount leads to a change in the output variable that is a constant times that amount.

Compound Interest

Direct and Inverse Variation

Slope-Intercept Form of a Line

8.2.1.3: Understand that a function is linear if it can be expressed in the form f(x)=mx+b or if its graph is a straight line.

Absolute Value with Linear Functions

Linear Functions

Point-Slope Form of a Line

Points, Lines, and Equations

Slope-Intercept Form of a Line

Standard Form of a Line

8.2.1.4: Understand that an arithmetic sequence is a linear function that can be expressed in the form f(x)=mx+b, where x = 0, 1, 2, 3,?.

Arithmetic Sequences

Arithmetic and Geometric Sequences

8.2.2: Recognize linear functions in real-world and mathematical situations; represent linear functions and other functions with tables, verbal descriptions, symbols and graphs; solve problems involving these functions and explain results in the original context.

8.2.2.1: Represent linear functions with tables, verbal descriptions, symbols, equations and graphs; translate from one representation to another.

Compound Interest

Exponential Functions

Function Machines 1 (Functions and Tables)

Function Machines 2 (Functions, Tables, and Graphs)

Function Machines 3 (Functions and Problem Solving)

Linear Functions

Points, Lines, and Equations

Slope-Intercept Form of a Line

8.2.2.2: Identify graphical properties of linear functions including slopes and intercepts. Know that the slope equals the rate of change, and that the y-intercept is zero when the function represents a proportional relationship.

Absolute Value with Linear Functions

Cat and Mouse (Modeling with Linear Systems)

Exponential Functions

Linear Functions

Point-Slope Form of a Line

Points, Lines, and Equations

Slope-Intercept Form of a Line

Standard Form of a Line

8.2.2.3: Identify how coefficient changes in the equation f(x) = mx + b affect the graphs of linear functions. Know how to use graphing technology to examine these effects.

Absolute Value with Linear Functions

8.2.2.4: Represent arithmetic sequences using equations, tables, graphs and verbal descriptions, and use them to solve problems.

8.2.2.5: Represent geometric sequences using equations, tables, graphs and verbal descriptions, and use them to solve problems.

8.2.3: Generate equivalent numerical and algebraic expressions and use algebraic properties to evaluate expressions.

8.2.3.1: Evaluate algebraic expressions, including expressions containing radicals and absolute values, at specified values of their variables.

8.2.3.2: Justify steps in generating equivalent expressions by identifying the properties used, including the properties of algebra. Properties include the associative, commutative and distributive laws, and the order of operations, including grouping symbols.

Equivalent Algebraic Expressions I

Equivalent Algebraic Expressions II

Modeling the Factorization of *x*^{2}+*bx*+*c*

Order of Operations

Simplifying Algebraic Expressions I

Simplifying Algebraic Expressions II

Solving Algebraic Equations II

8.2.4: Represent real-world and mathematical situations using equations and inequalities involving linear expressions. Solve equations and inequalities symbolically and graphically. Interpret solutions in the original context.

8.2.4.1: Use linear equations to represent situations involving a constant rate of change, including proportional and non-proportional relationships.

Compound Interest

Direct and Inverse Variation

8.2.4.2: Solve multi-step equations in one variable. Solve for one variable in a multi-variable equation in terms of the other variables. Justify the steps by identifying the properties of equalities used.

Area of Triangles

Modeling and Solving Two-Step Equations

Solving Algebraic Equations II

Solving Two-Step Equations

8.2.4.3: Express linear equations in slope-intercept, point-slope and standard forms, and convert between these forms. Given sufficient information, find an equation of a line.

Linear Inequalities in Two Variables

Point-Slope Form of a Line

Points, Lines, and Equations

Slope-Intercept Form of a Line

Standard Form of a Line

8.2.4.5: Solve linear inequalities using properties of inequalities. Graph the solutions on a number line.

Absolute Value Equations and Inequalities

Comparing and Ordering Decimals

Compound Inequalities

Exploring Linear Inequalities in One Variable

Linear Inequalities in Two Variables

Rational Numbers, Opposites, and Absolute Values

Solving Linear Inequalities in One Variable

Systems of Linear Inequalities (Slope-intercept form)

8.2.4.6: Represent relationships in various contexts with equations and inequalities involving the absolute value of a linear expression. Solve such equations and inequalities and graph the solutions on a number line.

Absolute Value Equations and Inequalities

8.2.4.7: Represent relationships in various contexts using systems of linear equations. Solve systems of linear equations in two variables symbolically, graphically and numerically.

Cat and Mouse (Modeling with Linear Systems)

Solving Equations by Graphing Each Side

Solving Linear Systems (Standard Form)

8.2.4.8: Understand that a system of linear equations may have no solution, one solution, or an infinite number of solutions. Relate the number of solutions to pairs of lines that are intersecting, parallel or identical. Check whether a pair of numbers satisfies a system of two linear equations in two unknowns by substituting the numbers into both equations.

Cat and Mouse (Modeling with Linear Systems)

Solving Equations by Graphing Each Side

Solving Linear Systems (Matrices and Special Solutions)

Solving Linear Systems (Slope-Intercept Form)

Solving Linear Systems (Standard Form)

8.2.4.9: Use the relationship between square roots and squares of a number to solve problems.

8.3.1: Solve problems involving right triangles using the Pythagorean Theorem and its converse.

8.3.1.1: Use the Pythagorean Theorem to solve problems involving right triangles.

Distance Formula

Pythagorean Theorem

Pythagorean Theorem with a Geoboard

8.3.1.2: Determine the distance between two points on a horizontal or vertical line in a coordinate system. Use the Pythagorean Theorem to find the distance between any two points in a coordinate system.

Distance Formula

Points in the Coordinate Plane

8.3.2: Solve problems involving parallel and perpendicular lines on a coordinate system.

8.3.2.1: Understand and apply the relationships between the slopes of parallel lines and between the slopes of perpendicular lines. Dynamic graphing software may be used to examine the relationships between lines and their equations.

Cat and Mouse (Modeling with Linear Systems)

8.3.2.3: Given a line on a coordinate system and the coordinates of a point not on the line, find lines through that point that are parallel and perpendicular to the given line, symbolically and graphically.

Constructing Parallel and Perpendicular Lines

8.4.1: Interpret data using scatterplots and approximate lines of best fit. Use lines of best fit to draw conclusions about data.

8.4.1.1: Collect, display and interpret data using scatterplots. Use the shape of the scatterplot to informally estimate a line of best fit and determine an equation for the line. Use appropriate titles, labels and units. Know how to use graphing technology to display scatterplots and corresponding lines of best fit.

Correlation

Least-Squares Best Fit Lines

Solving Using Trend Lines

Trends in Scatter Plots

8.4.1.2: Use a line of best fit to make statements about approximate rate of change and to make predictions about values not in the original data set.

Solving Using Trend Lines

Trends in Scatter Plots

Correlation last revised: 1/20/2017

This correlation lists the recommended Gizmos for this state's curriculum standards. Click any Gizmo title below for more information.