Contents

1. Section A: Fluency Within 20 and Measurement
2. Lesson 1: Sums and Differences Within 20
   1. Warm-up: Number Talk: Subtract Within 20
   2. 1.1: Check Yourself
   3. 1.2: Spin and Find the Missing Number
3. Lesson 2: Fluency Flip
   1. Warm-up: True or False: Sums within 20
   2. 2.1: Heads Up: Make 20
4. Lesson 3: Measure on a Map
   1. Warm-up: Notice and Wonder: From Sea to Shining Sea
   2. 3.1: Measure on the Map
   3. 3.2: How Much Longer?
5. Lesson 4: Measure and Plot
   1. Warm-up: Notice and Wonder: Line Plots
   2. 4.1: May I Sharpen My Pencil?
   3. 4.2: A Plot Twist
6. Section B: Numbers to 1,000
7. Lesson 5: Compose and Decompose Numbers Within 1,000
   1. Warm-up: What Do You Know About 308?
   2. 5.1: How Many Did You Get?
   3. 5.2: Let Me Count the Ways
8. Lesson 6: Represent Numbers with Expressions
   1. Warm-up: True or False: Place Value
   2. 6.1: Make Equations True
   3. 6.2: Card Sort: Expressions with Three-digit Values
9. Lesson 7: Add and Subtract Within 1,000
   1. Warm-up: Which One Doesn’t Belong: Add and Subtract Within 100
   2. 7.1: Which Would You Rather Find?
   3. 7.2: Add and Subtract within 100
10. Lesson 8: Add and Subtract Within 100
    1. Warm-up: Number Talk: Add by Place
    2. 8.1: Heads Up, Add and Subtract within 100
    3. 8.2: Centers: Choice Time
11. Section C: Create and Solve Story Problems
12. Lesson 9: Sort the Story Problems
    1. Warm-up: Number Talk: Use Place Value to Subtract
    2. 9.1: Card Sort: Story Problems
    3. 9.2: Solve Story Problems
13. Lesson 10: What’s the Question?
    1. Warm-up: Notice and Wonder: A Day in the Park
    2. 10.1: Asked and Answered
    3. 10.2: What is the Question?
14. Lesson 11: All About Tape Diagrams
    1. Warm-up: Number Talk: Addition and Subtraction
    2. 11.1: Represent Story Problems
    3. 11.2: Write Stories
15. Lesson 12: What’s the Story?
    1. Warm-up: Estimation Exploration: How many People?
    2. 12.1: What’s the Story?
    3. 12.2: Make Math Stories
16. Lesson 13: Let’s Solve Our Story Problems
    1. Warm-up: Number Talk: Make a Ten
    2. 13.1: Solve Story Problems
17. Glossary
18. Attributions
    1. Image Attributions
19. Notes
20. Notes