Videos
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
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