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Free math videos for Grades 6, 7, and 8, grouped by unit. Pick a grade, then a video to watch it here, or open the PBS version in a new tab.

Full playlists

Unit 1: Area and Surface Area

  • Khan Academy · Area of parallelograms intuition

  • Khan Academy · Finding area by breaking up the shape

  • Khan Academy · Nets of polyhedra

  • Math is Power · Formulas: Determine the Perimeter of a Rectangle

  • Math is Power · Determine the Area of a Pentagon on the Coordinate Plane – Decompose Area

  • Math is Power · Determine the Area of a Rhombus on the Coordinate Plane - Decompose Area

  • Math is Power · Determine the Determine the Volume of a Rectangular Prism (Box)

  • Math is Power · Determine the Perimeter of a Polygon on the Coordinate Plane Given the Vertices

  • Math is Power · Determine the Surface Area of a Right Rectangular Prism (Box)

Unit 2: Introducing Ratios

  • Khan Academy · Equivalent ratios

  • Khan Academy · Ratios for recipes

  • Khan Academy · Ratio word problem examples

  • Khan Academy · Understanding equivalent ratios

  • Math is Power · Introduction to Ratios

  • Math is Power · Solving Problems Using Ratios and Tape Diagrams

  • Math is Power · The Percent Proportion to Solve Percent Problems

  • Math is Power · Introduction to Proportions

  • Math is Power · Solving Percent Problems Using the Percent Proportion and Cross Products

  • Math is Power · Solve a Percent Problem Using a Double Number Line: 20% Tip

  • Math is Power · Unit Conversions Using Equivalent Ratios

  • Lesson 3 · Recipes

  • Lesson 5 · Defining Equivalent Ratios

  • Lesson 6 · Introducing Double Number Line Diagrams

  • Lesson 8 · How Much for One?

  • Lesson 9 · Constant Speed

  • Lesson 11 · Representing Ratios with Tables

  • Lesson 12 · Navigating a Table of Equivalent Ratios

  • Lesson 1 · Introducing Ratios and Ratio Language

  • Lesson 2 · Representing Ratios with Diagrams

  • Lesson 4 · Color Mixtures

  • Lesson 7 · Creating Double Number Line Diagrams

  • Lesson 10 · Comparing Situations by Examining Ratios

  • Lesson 13 · Tables and Double Number Line Diagrams

  • Lesson 14 · Solving Equivalent Ratio Problems

  • Lesson 15 · Part-Part-Whole Ratios

  • Lesson 16 · Solving More Ratio Problems

Unit 3: Unit Rates and Percentages

  • Khan Academy · Finding a percentage

  • Khan Academy · Ratios and measurement

  • Math is Power · Introduction to Unit Rates

  • Math is Power · Determine if Rates are Equivalent Using Unit Rates

  • Math is Power · Problem Solving with Rates Given in a Table

  • Math is Power · Convert Fractions to Percentages Using Equivalent Fractions with Denominators of 100

  • Math is Power · Convert Fractions to Percentages Using Division and Denominators of 100

  • Math is Power · Unit Conversions Using Unit Fractions: Meters to Millimeters

  • Math is Power · Unit Conversions Using Unit Fractions: Grams to Kilograms

  • Math is Power · Unit Conversions Using Unit Fractions: Mile Per Hour to Feet Per Second

  • Math is Power · Determine the Number of Data Value, Attribute, and Unit from a Data Set

  • Lesson 4 · Converting Units

  • Lesson 5 · Comparing Speeds and Prices

  • Lesson 11 · Percentages and Double Number Lines

  • Lesson 15 · Finding This Percent of That

  • Lesson 16 · Finding Percentages

  • Lesson 1 · The Burj Khalifa

  • Lesson 3 · Measuring with Different-Sized Units

  • Lesson 6 · Interpreting Rates

  • Lesson 7 · Equivalent Ratios Have the Same Unit Rates

  • Lesson 8 · More about Constant Speed

  • Lesson 9 · Solving Rate Problems

  • Lesson 10 · What Are Percentages?

  • Lesson 12 · Percentages and Tape Diagrams

  • Lesson 13 · Benchmark Percentages

  • Lesson 14 · Solving Percentage Problems

Unit 4: Dividing Fractions

  • Khan Academy · Adding and subtracting fractions

  • Khan Academy · Volume of a rectangular prism: fractional cubes

  • Khan Academy · Dividing mixed numbers example

  • Math is Power · What Does Dividing by a Fraction Mean? Whole Number Divided by Fraction

  • Math is Power · What Does Dividing by a Fraction Mean? Fraction Divided by Fraction

  • Math is Power · What Does Dividing by a Fraction Mean? Fraction Divided by Fraction (Compare to Trad Method)

  • Math is Power · Fraction Division Application: How Many Batches From a Recipe

  • Math is Power · Decimal Division: Decimal Divided by a Decimal (Whole Number Quotient)

  • Math is Power · Decimal Division: Decimal Divided by a Decimal (Decimal Quotient)

  • Math is Power · Compare Negative Fractions and Mixed Numbers Using Inequality Symbols

  • Lesson 1 · Size of Divisor and Size of Quotient

  • Lesson 2 · Meanings of Division

  • Lesson 3 · Interpreting Division Situations

  • Lesson 4 · How Many Groups? (Part 1)

  • Lesson 5 · How Many Groups? (Part 2)

  • Lesson 6 · Using Diagrams to Find the Number of Groups

  • Lesson 7 · What Fraction of a Group?

  • Lesson 8 · How Much in Each Group? (Part 1)

  • Lesson 9 · How Much in Each Group? (Part 2)

  • Lesson 10 · Dividing by Unit and Non-Unit Fractions

  • Lesson 11 · Using an Algorithm to Divide Fractions

  • Lesson 12 · Fractional Lengths

  • Lesson 13 · Rectangles with Fractional Side Lengths

  • Lesson 14 · Fractional Lengths in Triangles and Prisms

  • Lesson 15 · Volume of Prisms

  • Lesson 16 · Solving Problems Involving Fractions

Unit 5: Arithmetic in Base Ten

  • Math is Power · Long Division: 4 Digit Divided by a 2 Digit - No Remainder

  • Math is Power · Long Division: 4 Digit Divided by a 2 Digit - With Remainder

  • Math is Power · Adding and Subtracting Decimals

  • Math is Power · Decimal Operations Application: Finding a Total Cost (Product and Sum)

  • Math is Power · Decimal Division Application: Cutting a Rope Into 3 Equal Pieces

  • Math is Power · The Associative Property of Addition and Multiplication

  • Math is Power · The Commutative Property of Addition and Multiplication

  • Lesson 1 · Using Decimals in a Shopping Context

  • Lesson 3 · Adding and Subtracting Decimals with Many Digits

  • Lesson 4 · Decimal Points in Products

  • Lesson 5 · Methods for Multiplying Decimals

  • Lesson 6 · Using Diagrams to Represent Multiplication

  • Lesson 7 · Calculating Products of Decimals

  • Lesson 8 · Using the Partial Quotients Method

  • Lesson 9 · Using Long Division

  • Lesson 10 · Dividing Numbers that Result in Decimals

  • Lesson 11 · Dividing Decimals by Whole Numbers

  • Lesson 12 · Dividing Decimals by Decimals

  • Lesson 13 · Using Operations on Decimals to Solve Problems

  • Lesson 14 · Solving Problems Involving Fractions and Decimals

Unit 6: Expressions and Equations

  • Khan Academy · Order of operations examples: exponents

  • Khan Academy · Writing and evaluating algebraic expressions

  • Khan Academy · How to combine like terms

  • Math is Power · Factor a Sum Using GCF and the Distributive Property

  • Math is Power · Factor a Difference Using GCF and the Distributive Property

  • Math is Power · Factor a Sum Using GCF and the Distributive Property to Solve an Application

  • Math is Power · Evaluate Numerical Expressions with Whole Number Exponents

  • Math is Power · Evaluate Numerical Expressions Using the Order of Operations

  • Math is Power · Writing Variable Expressions from Words

  • Math is Power · Math: Variable Expression Vocabulary

  • Math is Power · Evaluating Variable Expressions

  • Math is Power · Using the Distributive Property to Write Equivalent Expressions

  • Math is Power · Simplifying Variable Expressions

  • Math is Power · Determine if Expressions are Equivalent Using Distribution and Combining Like Terms

  • Math is Power · Determining if Values are Solutions to Equations and Inequalities

  • Math is Power · Determining if Values are Solutions to Equations

  • Math is Power · Writing Variable Expressions for Situations

  • Math is Power · Solving One Step Equations with Whole Numbers and Decimals

  • Math is Power · Writing and Solving One Step Equations for Real Life Situations

  • Math is Power · Write an Equation, Make a Table, and Graph to Model a Situation: Earnings

  • Math is Power · Write an Equation, Make a Table, and Graph to Model a Situation: Plant Growth

  • Lesson 1 · Tape Diagrams and Equations

  • Lesson 2 · Truth and Equations

  • Lesson 4 · Practice Solving Equations and Equations with Variables

  • Lesson 6 · Write Expressions Where Letters Stand for Numbers

  • Lesson 8 · Equal and Equivalent

  • Lesson 9 · The Distributive Property, Part 1

  • Lesson 10 · The Distributive Property, Part 2

  • Lesson 16 · Two Related Quantities, Part 1

  • Lesson 17 · Two Related Quantities, Part 2

  • Lesson 3 · Staying in Balance

  • Lesson 5 · A New Way to Interpret a over b

  • Lesson 7 · Revisit Percentages

  • Lesson 12 · Meaning of Exponents

  • Lesson 13 · Expressions with Exponents

  • Lesson 14 · Evaluating Expressions with Exponents

  • Lesson 15 · Equivalent Exponential Expressions

Unit 7: Rational Numbers

  • Khan Academy · Ratios on coordinate plane

  • Khan Academy · Coordinate plane: word problem exercise

  • Khan Academy · Quadrilateral on the coordinate plane

  • Khan Academy · Finding coordinates of missing vertex example

  • Khan Academy · Example of shapes on a coordinate plane

  • Khan Academy · Parallelogram on the coordinate plane

  • Math is Power · Determing Greatest Common Factor and Least Common Multiple

  • Math is Power · Positive/Negative Integer and Absolute Value App: Vertical Distance Between a Submarine and Bird

  • Math is Power · Positive/Negative Integer and Absolute Value App: Rise in Temperature

  • Math is Power · Introduction to Opposite Integers

  • Math is Power · Using Opposite Integers to Represent Situations and Determining Sums of Opposites

  • Math is Power · Reflecting Points Across the Axes on the Coordinate Plane

  • Math is Power · Plotting Decimals on the Number Line

  • Math is Power · Order Signed Fractions Using the Number Line

  • Math is Power · Identify Coordinates of Points on the Coordinate Plane

  • Math is Power · Plot Points with Integer Coordinates on the Coordinate Plane

  • Math is Power · Plot Points on the Coordinate Plane with Fraction and Decimal Coordinates (1)

  • Math is Power · Plot Points on the Coordinate Plane with Fraction and Decimal Coordinates (2)

  • Math is Power · Compare the Absolute Value of Integers Using Inequality Symbols

  • Math is Power · Compare Integers and Signed Decimals Using Inequality Symbols

  • Math is Power · Compare Integers Application: Compare Two Negative Account Balances

  • Math is Power · Determine the Difference of a Negative and Positive Account Balance using Absolute Value

  • Math is Power · Determine the Difference of Two Negative Temperatures using Absolute Value

  • Math is Power · Write, Compare, and Determine Absolute Value of Integers that Represent Depths Below Sea Level

  • Math is Power · Plot Points on the Coordinate Plane and Determine the Distance from the Axes

  • Math is Power · Plot Points on the Coordinate Plane and Find the Horizontal and Vertical Distance Between the Points

  • Math is Power · Solving Basic Equations and Inequalities by Inspection Only

  • Math is Power · Write and Graph Inequalities that Represent Situations

  • Lesson 1 · Positive and Negative Numbers

    PBS video(opens in a new tab)
  • Lesson 2 · Points on the Number Line

  • Lesson 3 · Comparing Positive and Negative Numbers

  • Lesson 4 · Ordering Rational Numbers

  • Lesson 11 · Points on the Coordinate Plane

  • Lesson 13 · Interpreting Points on a Coordinate Plane

  • Lesson 14 · Distances on a Coordinate Plane

  • Lesson 5 · Using Negative Numbers to Make Sense of Contexts

  • Lesson 6 · Absolute Value of Numbers

  • Lesson 7 · Comparing Numbers and Distance from Zero

  • Lesson 8 · Writing Inequalities

  • Lesson 9 · Solutions of Inequalities

  • Lesson 10 · Interpreting Inequalities

  • Lesson 12 · Constructing the Coordinate Plane

  • Lesson 15 · Shapes on the Coordinate Plane

  • Lesson 16 · Common Factors

  • Lesson 17 · Common Multiples

  • Lesson 18 · Using Common Multiples and Common Factors

Unit 8: Data Sets and Distributions

  • Khan Academy · Statistics intro: mean, median, and mode

  • Khan Academy · Mean absolute deviation

  • Khan Academy · Mean absolute deviation example

  • Khan Academy · Median and range puzzle

  • Khan Academy · Thinking about shapes of distributions

  • Khan Academy · Examples analyzing clusters, gaps, peaks and outliers for distributions

  • Math is Power · Determining Statistical and Non-Statistical Questions

  • Math is Power · Describing Data Distributions: Center, Spread, and Shape

  • Math is Power · Data with Similar Centers and Different Variability

  • Math is Power · Create a Dot Plot from Data and Find Mode, Range, Median, and Mean

  • Math is Power · Create a Histogram and Analyze Data

  • Math is Power · Create a Box Plot without Outliers

  • Math is Power · Create a Box Plot with an Outlier

  • Math is Power · Determine the Best Measure of Center and Variability for Skewed Data

  • Math is Power · Determine the Best Measure of Center and Variability for Symmetric Data