Grade 8 Math: Common Core alignment

• The Number System
• Expressions and Equations
• Functions
• Geometry
• Statistics and Probability

The Number System NS · 2 standards · 2 covered

• 8.NS.A.1
  Covered

  Know that some numbers are irrational; turn repeating decimals into fractions

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Decimal Representation of Rational and Irrational Numbers
• 8.NS.A.2
  Covered

  Approximate irrational numbers with rational numbers

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Estimate Square Roots

Expressions and Equations EE · 8 standards · 8 covered

• 8.EE.A.1
  Covered

  Use the properties of integer exponents

  • Unit 7 · Exponents and Scientific Notation: Exponent Rules
• 8.EE.A.2
  Covered

  Use square roots and cube roots; solve x² = p and x³ = p

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Square Roots, Side Lengths and Volumes of Cubes
• 8.EE.A.3
  Covered

  Use scientific notation to estimate very large and very small quantities

  • Unit 7 · Exponents and Scientific Notation: Scientific Notation
• 8.EE.A.4
  Covered

  Calculate with numbers in scientific notation

  • Unit 7 · Exponents and Scientific Notation: Multiply and Divide in Scientific Notation
• 8.EE.B.5
  Covered

  Graph proportional relationships and read the unit rate as slope

  • Unit 3 · Linear Relationships: Proportional Relationships
• 8.EE.B.6
  Covered

  Use similar triangles to explain slope; write y = mx and y = mx + b

  • Unit 2 · Dilations, Similarity, and Introducing Slope: Slope
  • Unit 3 · Linear Relationships: Linear Equations
• 8.EE.C.7
  Covered

  Solve linear equations in one variable, with one, none or infinitely many solutions

  • Unit 4 · Linear Equations and Linear Systems: Linear Equations in One Variable
• 8.EE.C.8
  Covered

  Solve systems of two linear equations

  • Unit 4 · Linear Equations and Linear Systems: Systems of Linear Equations

Functions F · 5 standards · 5 covered

• 8.F.A.1
  Covered

  Understand a function as a rule that gives one output for each input

  • Unit 5 · Functions and Volume: Inputs and Outputs
• 8.F.A.2
  Covered

  Compare two functions shown in different ways

  • Unit 5 · Functions and Volume: Compare Two Functions
• 8.F.A.3
  Covered

  Know that y = mx + b is linear and recognize nonlinear functions

  • Unit 5 · Functions and Volume: Linear Functions and Rates of Change
• 8.F.B.4
  Covered

  Model a linear relationship with a function; find rate of change and initial value

  • Unit 5 · Functions and Volume: Rate of Change, Initial Value
• 8.F.B.5
  Covered

  Describe a function from its graph, and sketch a graph from a description

  • Unit 5 · Functions and Volume: Describe a Graph's Story

Geometry G · 9 standards · 9 covered

• 8.G.A.1
  Covered

  Know what rotations, reflections and translations do to lines, angles and lengths

  • Unit 1 · Rigid Transformations and Congruence: Properties of Rigid Transformations
• 8.G.A.2
  Covered

  Show figures are congruent with a sequence of rigid motions

  • Unit 1 · Rigid Transformations and Congruence: Congruence
• 8.G.A.3
  Covered

  Describe dilations, translations, rotations and reflections with coordinates

  • Unit 1 · Rigid Transformations and Congruence: Transformations on a Coordinate Grid
  • Unit 2 · Dilations, Similarity, and Introducing Slope: Dilations with Coordinates
• 8.G.A.4
  Covered

  Show figures are similar with a sequence of transformations

  • Unit 2 · Dilations, Similarity, and Introducing Slope: Similarity
• 8.G.A.5
  Covered

  Reason about angle sums, exterior angles, parallel lines with a transversal and angle-angle similarity

  • Unit 1 · Rigid Transformations and Congruence: Angles in a Triangle
  • Unit 2 · Dilations, Similarity, and Introducing Slope: Angle-Angle Similarity
• 8.G.B.6
  Covered

  Explain a proof of the Pythagorean theorem and its converse

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Pythagorean Theorem Explained, Converse of the Pythagorean Theorem
• 8.G.B.7
  Covered

  Use the Pythagorean theorem to find unknown side lengths

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Find the Hypotenuse, Find a Missing Leg, Let's Put it to Work
• 8.G.B.8
  Covered

  Use the Pythagorean theorem to find the distance between two points

  • Unit 8 · Pythagorean Theorem and Irrational Numbers: Distance on the Coordinate Plane
• 8.G.C.9
  Covered

  Use the formulas for the volume of cones, cylinders and spheres

  • Unit 5 · Functions and Volume: Cylinders and Cones, Dimensions and Spheres

Statistics and Probability SP · 4 standards · 4 covered

• 8.SP.A.1
  Covered

  Make and read scatter plots; describe clusters, outliers and association

  • Unit 6 · Associations in Data: Does This Predict That?, Positive and Negative Association
• 8.SP.A.2
  Covered

  Fit a straight line to a scatter plot

  • Unit 6 · Associations in Data: Fit a Line to Data
• 8.SP.A.3
  Covered

  Use a linear model's equation to solve problems; interpret slope and intercept

  • Unit 6 · Associations in Data: Interpret Slope and Intercept in Data
• 8.SP.A.4
  Covered

  Find patterns of association in two-way tables

  • Unit 6 · Associations in Data: Associations in Categorical Data

Every Grade 8 unit and lesson

Common Core State Standards © Copyright 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. The standard descriptions on these pages are KidUniversity's own short summaries, not the official text; read the full standards at thecorestandards.org. KidUniversity is not affiliated with or endorsed by the NGA Center or CCSSO.