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In Grade 8, instructional time should focus on three critical areas: (1) formulating and reasoning about expressions and equations, including modeling an association in bivariate data with a linear equation, and solving linear equations and systems of linear equations; (2) grasping the concept of a function and using functions to describe quantitative relationships; (3) analyzing two- and three-dimensional space and figures using distance, angle, similarity, and congruence, and understanding and applying the Pythagorean Theorem.
Ch.1 – Geometry

  • Reflections and Translations
  • Transformations that Result in Congruent Figures
  • Transformations
  • Transformations Involving Dilations
  • Angles in Triangles
  • Angles and Parallel Lines
  • The Pythagorean Theorem
  • The Pythagorean Theorem and Its Converse
  • Distance Between Two Points
  • Volume of Cones, Cylinders, and Spheres
  • Reflections
  • Using the Slope and y-intercept to Write the Equation of a Line
Ch.3 – Expressions and Equations

  • Working with Square and Cube Roots
  • Solving Two-Step Equations with Fractions and Decimals
  • Multiplying and Dividing Monomials
  • Solve a System of Equations by Graphing
  • Solving Multi-Step Equations
  • Slope and the Equation of Lines
  • Proportional Linear Equations
  • Operations on Very Large and Very Small Numbers
  • Exponents: Scientific Notation
  • Multiplication and Division Rules for Exponents
  • Exponents in Expressions
  • Slope and the Equation of Lines
  • Operations on Very Large and Very Small Numbers
  • Dividing Polynomials by Monomials
  • Solving Inequalities
  • Slope-Intercept Form
  • Finding Values that Satisfy an Equation
  • Non-Perfect Square Roots
  • Graphing Inequalities
  • Add and Subtract Polynomials
  • Factoring Trinomials
Ch.2 – Number System

  • Rational and Irrational Numbers
  • Irrational & Rational Numbers on a Number Line
  • Estimating Number Locations
  • Factors and Divisibility
  • Ordering Small Numbers
  • Understanding Percents
Ch.4 – Add and Subtract Polynomials

  • Understand, Construct and Interpret Two-Way Tables
  • Solve Problems Using Linear Models
  • Lines to Show Data on a Scatter Plot
  • Outliers
  • Theoretical vs. Experimental
  • The Counting Principle
  • Directed Graphs
  • Misleading/Biased Data
  • Graphing Linear and Non-Linear Relationships