Looking for free content to use with your textbook? You’ve come to the right place!
Get Free Content to Use with Investigations 3 – 3rd Grade
Khan Academy is a nonprofit with thousands of free videos, articles, and practice questions for just about every skill.
No ads, no subscriptions – just 100% free, forever.
Unit 1: Understanding Equal Groups |
Session 1.1: Many Things Come in Groups |
Session 1.2: How Many in Several Groups? |
Session 1.3: Solving Multiplication Problems |
Session 1.4: Solving Problems About Our Pictures |
Session 2.1: Highlighting Multiples on 100 Charts |
Session 2.2: More Multiples |
Session 2.3: Solving Related Story Problems |
Session 2.4: Patterns and Relationships |
Session 2.5: Finding Products of Related Problems |
Session 2.6: Using Multiplication |
Session 3.1: Arranging Chairs |
Session 3.2: Investigating Arrays |
Session 3.3: What’s the Area? |
Session 3.4: Array Games—Part 1 |
Session 3.5: Using What You Know |
Session 3.6: Learning Multiplication Facts |
Session 3.7: Array Games—Part 2 |
Session 4.1: Solving Division Problems |
Session 4.2: Multiply or Divide? |
Session 4.3: Writing Story Problems |
Session 4.4: Missing Factors |
Session 4.5: Solving Multiplication and Division Problems |
Session 4.6: Solving Multiplication and Division Problems, continued |
Unit 2: Graphs and Line Plots |
Session 1.1: Places Where We Like to Eat |
Session 1.2: Representing the Class Data |
Session 1.3: What Do Our Data Show About Our Class? |
Session 1.4: Solving Problems with Bar Graphs |
Session 1.5: Bar Graphs and Pictographs |
Session 1.6: Interpreting Bar Graphs and Pictographs and Developing a Survey Question |
Session 1.7: Describing Data |
Session 1.8: Choosing Categories |
Session 1.9: Comparing Groups |
Session 2.1: Using a Line Plot to Represent Data |
Session 2.2: Is Your Foot a Foot Long? |
Session 2.3: Why Are Our Measurements Different? |
Session 2.4: Feet and Inches |
Session 2.5: Describing the Pattern Block Data |
Session 2.6: Reading and Interpreting Data |
Unit 3: Travel Stories and Collections |
Session 1.1: Capture 5 |
Session 1.2: Sticker Station Problems |
Session 1.3: How Many More Stickers to Get 100? |
Session 1.4: Close to 100 |
Session 1.5: Solving Addition and Subtraction Problems |
Session 2.1: Making a 1,000 Chart |
Session 2.2: Collections and Quantities on the 1,000 Chart |
Session 2.3: Go Collecting |
Session 2.4: Rounding Numbers |
Session 3.1: How Many Stickers? |
Session 3.2: Combining Collections |
Session 3.3: Place Value of 3-Digit Numbers |
Session 3.4: Addition Starter Problems |
Session 3.5: Addition Strategies |
Session 4.1: Over and Under 100 |
Session 4.2: Travel Problems—Crossing Over 100 |
Session 4.3: Finding the Difference Between Two Numbers |
Session 4.4: How Far Did They Travel? |
Session 4.5: The Trip Home |
Session 5.1: Comparing Lengths and Heights |
Session 5.2: Comparing Quantities |
Session 5.3: Related Problems |
Session 5.4: How Many Are Left? |
Session 5.5: Solving Subtraction Problems |
Session 5.6: Addition and Subtraction Problems |
Unit 4: Perimeter, Area, and Polygons |
Session 1.1: Using U.S. and Metric Units to Measure Length |
Session 1.2: Introducing Perimeter |
Session 1.3: Measuring Perimeter |
Session 1.4: Perimeter Problems |
Session 1.5: Ordering Shapes by Perimeter |
Session 2.1: Tetrominoes |
Session 2.2: Which Tetrominoes Fit? |
Session 2.3: Using Square Inches to Measure |
Session 2.4: Same Area, Different Perimeter; Same Perimeter, Different Area |
Session 2.5: Area Activities |
Session 2.6: Area Activities, continued |
Session 2.7: Finding Area |
Session 3.1: Triangles |
Session 3.2: Is It a Triangle? |
Session 3.3: Squares, Rectangles, and Other Quadrilaterals |
Session 3.4: Rectangles and Rhombuses |
Session 3.5: Area and Quadrilaterals |
Unit 5: Cube Patterns, Arrays, and Multiples of 10 |
Session 1.1: Groups of 3 |
Session 1.2: Groups of 3, 4, and 6 |
Session 1.3: Equations for Multiples and Non-Multiples of 3, 4, or 6 |
Session 1.4: Multiplication and Division Equations |
Session 1.5: Relating Multiplication and Division |
Session 2.1: Arrays and Multiplication Facts |
Session 2.2: Array Cover-Up |
Session 2.3: Related Story Problems |
Session 2.4: Missing Factors |
Session 2.5: Division Strategies |
Session 2.6: Multiplication and Division Problems |
Session 3.1: The Toy Factory: Multiples of Ten |
Session 3.2: Multiplying by Tens |
Session 3.3: Solving Multi-Step Problems |
Session 3.4: Solving Division Problems |
Session 3.5: Problems with Multiple Solutions |
Session 3.6: Solving Word Problems |
Unit 6: Fair Shares and Fractions on Number Lines |
Session 1.1: Making Fair Shares |
Session 1.2: Making Fraction Sets |
Session 1.3: More Than One Piece |
Session 1.4: Cutting Up Cookies in Equal Parts |
Session 1.5: Fractions on a Number Line |
Session 1.6: Measuring to the Nearest Fourth Inch |
Session 1.7: Sharing Brownies |
Session 1.8: Naming Fractional Parts |
Session 2.1: The Fraction Cookie Game |
Session 2.2: Locating and Comparing Fractions on Number Lines |
Session 2.3: Making Half-Yellow Designs |
Session 2.4: Which Fraction Is Greater? |
Session 2.5: Representing and Comparing Fractions |
Unit 7: How Many Miles? |
Session 1.1: Measuring Liquid Volume |
Session 1.2: Measuring Mass |
Session 1.3: Paper Clip Problems |
Session 1.4: Capture from 300 to 600 |
Session 1.5: Related Subtraction Problems |
Session 1.6: Solving Subtraction Problems |
Session 1.7: Practicing Subtraction and Addition |
Session 2.1: Making an Easier Problem |
Session 2.2: Addition Starter Problems |
Session 2.3: Categorizing Addition Strategies |
Session 2.4: Adding More Than Two Numbers |
Session 2.5: Addition Problems |
Session 3.1: Subtraction |
Session 3.2: Subtraction Strategies |
Session 3.3: Subtracting Whole Dollars |
Session 3.4: Strategies for Subtraction |
Session 3.5: What Combinations Can I Make? |
Session 3.6: Solving Addition and Subtraction Problems |
Unit 8: Larger Numbers and Multi-Step Problems |
Session 1.1: Solving Division Problems |
Session 1.2: Learning Division Facts |
Session 1.3: Related Division Problems |
Session 1.4: Division with Remainders |
Session 1.5: Division Facts and Multiplication and Division Practice, Part 1 |
Session 1.6: Division Facts and Multiplication and Division Practice, Part 2 |
Session 2.1: Multiplying a 2-Digit Number |
Session 2.2: Using Arrays for Multiplication |
Session 2.3: Dividing 2-Digit Numbers by 1-Digit Numbers |
Session 2.4: Solving Multiplication and Division Problems, Part 1 |
Session 2.5: Solving Multiplication and Division Problems, Part 2 |
Session 3.1: Representing Multi-Step Problems: The Marbles of Rhomaar |
Session 3.2: Identifying and Explaining Arithmetic Patterns |
Session 3.3: Applying a General Rule |
Session 3.4: Using Equations to Model Multi-Step Problems |
Session 3.5: Solving Multi-Step Problems |