Looking for free content to use with your textbook? You’ve come to the right place!
Get Free Content to Use with Open Up Resources – 1st 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: Adding, Subtracting, and Working with Data |
| Lesson 1: Count and Add |
| Lesson 2: Explore Expressions and Sums |
| Lesson 3: Add 1 or 2 |
| Lesson 4: More Work with 1 and 2 |
| Lesson 5: Explore Addition and Subtraction |
| Lesson 6: Center Day 1 |
| Lesson 7: Sort Math Tools |
| Lesson 8: Sort and Count Shape Cards |
| Lesson 9: What is Your Favorite ___? |
| Lesson 10: Center Day 2 |
| Lesson 11: Class Pet Surveys |
| Lesson 12: How Many? |
| Lesson 13: Questions About Data |
| Lesson 14: Center Day 3 |
| Lesson 15: Animals in the Jungle (optional) |
| Unit 2: Addition and Subtraction Story Problems |
| Lesson 1: Story Problems and Expressions |
| Lesson 2: Story Problems and Equations |
| Lesson 3: A Change is Coming |
| Lesson 4: Result or Change Unknown |
| Lesson 5: Center Day 1 |
| Lesson 6: Problems about Pets |
| Lesson 7: Shake and Spill |
| Lesson 8: Shake, Spill, and Cover |
| Lesson 9: Compare Story Problems |
| Lesson 10: Center Day 2 |
| Lesson 11: Make Them the Same |
| Lesson 12: School Supplies |
| Lesson 13: Compare Favorite Art Supply Data |
| Lesson 14: Compare with Addition and Subtraction |
| Lesson 15: Different Types of Story Problems |
| Lesson 16: Center Day 3 |
| Lesson 17: How Do the Stories Compare? |
| Lesson 18: Equations with Unknowns |
| Lesson 19: Story Problems and Equations |
| Lesson 20: What’s the Story? |
| Lesson 21: Center Day 4 |
| Lesson 22: Story Problems and Equations (optional) |
| Unit 3: Adding and Subtracting within 20 |
| Lesson 1: Sums I Know |
| Lesson 2: Relate Counting to Addition |
| Lesson 3: Are the Expressions Equal? |
| Lesson 4: Sums of 10 |
| Lesson 5: Find the Difference |
| Lesson 6: Story Problems within 10 |
| Lesson 7: Center Day 1 |
| Lesson 8: Ten as a Unit |
| Lesson 9: Addition with a Ten |
| Lesson 10: Addition and Subtraction with a Ten |
| Lesson 11: Add to a Teen Number |
| Lesson 12: Subtract From a Teen Number |
| Lesson 13: More Story Problems with Teen Numbers |
| Lesson 14: Center Day 2 |
| Lesson 15: Solve Story Problems with Three Numbers |
| Lesson 16: Add Three Numbers |
| Lesson 17: Make 10 to Add |
| Lesson 18: Patterns in Addition |
| Lesson 19: Methods for Addition |
| Lesson 20: A Trip to the Zoo |
| Lesson 21: Center Day 3 |
| Lesson 22: Subtract from Teen Numbers |
| Lesson 23: Use a Ten to Subtract |
| Lesson 24: Relate Counting to Addition and Subtraction |
| Lesson 25: How Do You Want to Subtract? |
| Lesson 26: What’s the Story? |
| Lesson 27: Center Day 4 |
| Lesson 28: Around the Room (optional) |
| Unit 4: Numbers to 99 |
| Lesson 1: Count Large Collections |
| Lesson 2: Match Representations of Tens |
| Lesson 3: Addition and Subtraction with Tens |
| Lesson 4: More Addition and Subtraction with Tens |
| Lesson 5: Center Day 1 |
| Lesson 6: Count Larger Collections |
| Lesson 7: Numbers with Tens and Ones |
| Lesson 8: Different Representations of Tens and Ones |
| Lesson 9: Show Me Your Number |
| Lesson 10: Write Two-digit Numbers |
| Lesson 11: Add Tens to Two-digit Numbers |
| Lesson 12: Mentally Add and Subtract Tens (optional) |
| Lesson 13: Center Day 2 |
| Lesson 14: Let’s Compare |
| Lesson 15: Greater Than, Less Than |
| Lesson 16: Write Comparisions with Symbols |
| Lesson 17: Compare and Order Numbers |
| Lesson 18: Center Day 3 |
| Lesson 19: Make Two-digit Numbers |
| Lesson 20: Make Two-digit Numbers in Different Ways |
| Lesson 21: Compare Two-digit Numbers Shown in Different Ways |
| Lesson 22: Center Day 4 |
| Lesson 23: Two-digit Numbers in Our World (optional) |
| Unit 5: Adding Within 100 |
| Lesson 1: Add Tens and Ones |
| Lesson 2: How Did You Add? |
| Lesson 3: Add It, Explain It |
| Lesson 4: Center Day 1 |
| Lesson 5: Make a Ten |
| Lesson 6: Make a Ten and Make Sense of Equations |
| Lesson 7: Does it Make a New Ten? |
| Lesson 8: Center Day 2 |
| Lesson 9: Add 2 Two-digit Numbers |
| Lesson 10: Tens and Tens, Ones and Ones |
| Lesson 11: How Did You Do That? |
| Lesson 12: Add it Up |
| Lesson 13: Center Day 3 |
| Lesson 14: Food Drive (optional) |
| Unit 6: Length Measurements Within 120 Units |
| Lesson 1: Compare Lengths |
| Lesson 2: Compare the Length of Objects Indirectly |
| Lesson 3: Choose Objects to Compare Length Indirectly |
| Lesson 4: Center Day 1 |
| Lesson 5: Measure with Connecting Cubes |
| Lesson 6: Measure with Paper Clips |
| Lesson 7: Measure Length with Different Length Units |
| Lesson 8: Groups Up to 110 |
| Lesson 9: Write Numbers to 120 |
| Lesson 10: Center Day 2 |
| Lesson 11: How Long Are Our Shoes? |
| Lesson 12: Compare Measurements |
| Lesson 13: Solve Take From Story Problems |
| Lesson 14: Which Equation Matches? |
| Lesson 15: Write Equations for Story Problems |
| Lesson 16: Center Day 3 |
| Lesson 17: Puppies and Tulips (optional) |
| Unit 7: Geometry and Time |
| Lesson 1: Shapes That Are Solid |
| Lesson 2: Build Shapes from Other Shapes |
| Lesson 3: Shapes That Are Flat |
| Lesson 4: Draw Flat Shapes |
| Lesson 5: Some Triangles, All Triangles |
| Lesson 6: Rectangles and Squares |
| Lesson 7: Put Together Flat Shapes |
| Lesson 8: Center Day 1 |
| Lesson 9: Equal Pieces |
| Lesson 10: One of the Pieces, All of the Pieces |
| Lesson 11: A Bigger Piece |
| Lesson 12: Center Day 2 |
| Lesson 13: It’s Time to Learn About Clocks |
| Lesson 14: Half of the Clock |
| Lesson 15: Write Times |
| Lesson 16: Hard Times |
| Lesson 17: Center Day 3 |
| Unit 8: Putting It All Together |
| Lesson 1: Addition Fluency Within 10 |
| Lesson 2: Relate Addition and Subtraction |
| Lesson 3: Add and Subtract Within 20 |
| Lesson 4: Change Unknown Story Problems |
| Lesson 5: Put Together and Take Apart Story Problems |
| Lesson 6: Compare Story Problems |
| Lesson 7: Count Large Collections |
| Lesson 8: Show Me All the Ways |
| Lesson 9: Solve Number Riddles |
| Lesson 10: Write Number Riddles |