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 x2+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)
8.4.1: 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: 9/16/2020