# Explorations in Core Math - Grade 8: Online Textbook Help

• Course type: Self-paced
• Available Lessons: 88
• Average Lesson Length: 8 min
• Eligible for Certificate: Yes

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### Course Summary

If you use the Explorations in Core Math textbook in class, this course is a great resource to supplement your studies. The course covers the same important math concepts found in the book, but uses short videos that make the math lessons easier to understand and more fun to learn.
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8 Chapters in Explorations in Core Math - Grade 8: Online Textbook Help

#### 8 chapters in Explorations in Core Math - Grade 8: Online Textbook Help

Ch 1. Explorations in Core Math Grade 8 - Chapter 1: Rational Numbers {{cp.topicAssetIdToProgress[83930].percentComplete}}% complete
Course Progress Best Score
Lesson 1 - Comparing & Ordering Rational Numbers Score: {{cp.lessonAssetIdToProgress[46716].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46716].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Changing Between Decimals and Fractions Score: {{cp.lessonAssetIdToProgress[11283].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11283].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - What are Equivalent Fractions? - Definition & Examples Score: {{cp.lessonAssetIdToProgress[20294].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20294].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Multiplying & Dividing Rational Numbers Score: {{cp.lessonAssetIdToProgress[46718].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46718].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - How to Add and Subtract Unlike Fractions and Mixed Numbers Score: {{cp.lessonAssetIdToProgress[10618].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10618].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - How to Solve a Rational Equation Score: {{cp.lessonAssetIdToProgress[615].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[615].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Solving Problems using Fractions and Mixed Numbers Score: {{cp.lessonAssetIdToProgress[10623].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10623].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Rational Equations: Practice Problems Score: {{cp.lessonAssetIdToProgress[616].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[616].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - How to Solve Two-Step Linear Equations Score: {{cp.lessonAssetIdToProgress[83446].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[83446].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Solving Two-Step Linear Inequalities Score: {{cp.lessonAssetIdToProgress[46720].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46720].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - Ordered Pairs on the Coordinate Plane Score: {{cp.lessonAssetIdToProgress[46774].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46774].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Graphing Basic Functions Score: {{cp.lessonAssetIdToProgress[162].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[162].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Identify Where a Function is Linear, Increasing or Decreasing, Positive or Negative Score: {{cp.lessonAssetIdToProgress[11294].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11294].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Functions: Identification, Notation & Practice Problems Score: {{cp.lessonAssetIdToProgress[648].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[648].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - What Is Domain and Range in a Function? Score: {{cp.lessonAssetIdToProgress[651].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[651].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Compare Properties of Functions Algebraically Score: {{cp.lessonAssetIdToProgress[18966].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[18966].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Compare Properties of Functions Graphically Score: {{cp.lessonAssetIdToProgress[18968].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[18968].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Compare Properties of Functions Numerically Score: {{cp.lessonAssetIdToProgress[18970].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[18970].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Function Table in Math: Definition, Rules & Examples Score: {{cp.lessonAssetIdToProgress[21712].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[21712].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - What Are Exponents? - Definition, Properties & Rules Score: {{cp.lessonAssetIdToProgress[21727].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[21727].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - How to Simplify Expressions with Exponents Score: {{cp.lessonAssetIdToProgress[601].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[601].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - Converting Numbers to Scientific Notation Score: {{cp.lessonAssetIdToProgress[32985].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[32985].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Adding & Subtracting in Scientific Notation Score: {{cp.lessonAssetIdToProgress[83933].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[83933].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - How to Multiply & Divide in Scientific Notation Score: {{cp.lessonAssetIdToProgress[58374].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58374].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - How to Find the Square Root of a Number Score: {{cp.lessonAssetIdToProgress[14915].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14915].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Simplifying Square Roots When not a Perfect Square Score: {{cp.lessonAssetIdToProgress[10998].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10998].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Evaluating Square Roots of Perfect Squares Score: {{cp.lessonAssetIdToProgress[10996].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10996].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Estimating Square Roots Score: {{cp.lessonAssetIdToProgress[10997].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10997].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Radicands and Radical Expressions Score: {{cp.lessonAssetIdToProgress[14916].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14916].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Simplifying Square Roots of Powers in Radical Expressions Score: {{cp.lessonAssetIdToProgress[14918].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14918].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - What are Real Numbers? - Definition & Properties Score: {{cp.lessonAssetIdToProgress[3243].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3243].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - The Pythagorean Theorem: Practice and Application Score: {{cp.lessonAssetIdToProgress[2403].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2403].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - The Pythagorean Theorem: Converse and Special Cases Score: {{cp.lessonAssetIdToProgress[14102].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14102].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Ratios & Rates: Definitions & Examples Score: {{cp.lessonAssetIdToProgress[15578].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15578].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - How to Calculate Unit Rates & Unit Prices Score: {{cp.lessonAssetIdToProgress[44556].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[44556].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - Equivalent Ratios: Definition & Examples Score: {{cp.lessonAssetIdToProgress[15011].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15011].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - Using Tables & Graphs to Explore Ratios & Rates Score: {{cp.lessonAssetIdToProgress[83402].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[83402].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Solving Problems Involving Proportions: Definition and Examples Score: {{cp.lessonAssetIdToProgress[14096].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14096].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Similar Figures: Definition & Examples Score: {{cp.lessonAssetIdToProgress[60648].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[60648].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Applications of Similar Triangles Score: {{cp.lessonAssetIdToProgress[2405].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2405].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - What is a Scale Factor? - Definition, Formula & Examples Score: {{cp.lessonAssetIdToProgress[14968].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14968].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Dilation in Math: Definition & Meaning Score: {{cp.lessonAssetIdToProgress[5210].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5210].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Complementary Angles: Definition, Theorem & Examples Score: {{cp.lessonAssetIdToProgress[15035].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15035].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Supplementary Angle: Definition & Theorem Score: {{cp.lessonAssetIdToProgress[14949].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14949].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Angles Formed by a Transversal Score: {{cp.lessonAssetIdToProgress[13676].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13676].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Parallel, Perpendicular and Transverse Lines Score: {{cp.lessonAssetIdToProgress[2406].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2406].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - Classifying Triangles by Angles and Sides Score: {{cp.lessonAssetIdToProgress[14339].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14339].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Interior and Exterior Angles of Triangles: Definition & Examples Score: {{cp.lessonAssetIdToProgress[14340].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14340].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Angles and Triangles: Practice Problems Score: {{cp.lessonAssetIdToProgress[2408].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2408].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Dilation in a Coordinate Plane Score: {{cp.lessonAssetIdToProgress[83936].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[83936].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - How to Use The Midpoint Formula Score: {{cp.lessonAssetIdToProgress[3743].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3743].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - How to Use The Distance Formula Score: {{cp.lessonAssetIdToProgress[3744].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3744].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - What is a Polygon? - Definition, Shapes & Angles Score: {{cp.lessonAssetIdToProgress[10378].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10378].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - What is a Quadrilateral? - Definition, Properties, Types & Examples Score: {{cp.lessonAssetIdToProgress[14961].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14961].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Congruence Proofs: Corresponding Parts of Congruent Triangles Score: {{cp.lessonAssetIdToProgress[14434].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14434].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Diameter and Circumference Related with Pi Score: {{cp.lessonAssetIdToProgress[15240].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15240].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Circles: Area and Circumference Score: {{cp.lessonAssetIdToProgress[8563].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8563].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Combined Figures: Perimeter, Area, and Volume Score: {{cp.lessonAssetIdToProgress[20056].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20056].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Prisms: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13833].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13833].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - What Are Cylinders? - Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13835].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13835].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - Pyramids: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13834].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13834].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Cones: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13836].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13836].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Spheres: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13837].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13837].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Lateral Surface Area: Definition & Formula Score: {{cp.lessonAssetIdToProgress[20317].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20317].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Expressing Relationships as Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[11050].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11050].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Translating Words to Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[15915].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15915].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Combining Like Terms in Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[11054].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11054].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Practice Simplifying Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[11055].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11055].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - How to Solve Equations with Multiple Steps Score: {{cp.lessonAssetIdToProgress[15917].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15917].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - The Commutative and Associative Properties and Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[11052].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11052].bestScoreQuestions}}  Take Quiz Optional
Course Progress Best Score
Lesson 1 - The Distributive Property and Algebraic Expressions Score: {{cp.lessonAssetIdToProgress[11053].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11053].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Collecting Like Terms On One Side of an Equation Score: {{cp.lessonAssetIdToProgress[15913].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15913].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - What is a System of Equations? Score: {{cp.lessonAssetIdToProgress[559].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[559].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - How to Solve a System of Equations by Substitution Score: {{cp.lessonAssetIdToProgress[46779].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46779].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - How to Solve a System of Equations by Elimination Score: {{cp.lessonAssetIdToProgress[46780].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46780].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Linear Equations: Intercepts, Standard Form and Graphing Score: {{cp.lessonAssetIdToProgress[554].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[554].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - How to Find and Apply The Slope of a Line Score: {{cp.lessonAssetIdToProgress[11295].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11295].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - How to Find and Apply the Intercepts of a Line Score: {{cp.lessonAssetIdToProgress[11296].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11296].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Calculating the Slope of a Line: Point-Slope Form, Slope-Intercept Form & More Score: {{cp.lessonAssetIdToProgress[14507].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14507].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Solving Equations of Direct Variation Score: {{cp.lessonAssetIdToProgress[17670].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17670].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - How to Solve a System of Equations by Graphing Score: {{cp.lessonAssetIdToProgress[46778].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[46778].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Creating & Interpreting Scatterplots: Process & Examples Score: {{cp.lessonAssetIdToProgress[16787].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16787].bestScoreQuestions}}  Take Quiz Optional

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