- Section A: Add and Subtract Within 20
- Warm-up: What Do You Know About Math?
- 1.1: Check It Off: Add or Subtract within 10
- 1.2: What’s the Value?

- Warm-up: What Do You Know About 10?
- 2.2: Sums of 10

- Warm-up: Number Talk: Addition and Subtraction
- 3.2: Make the Equation True

- Warm-up: Number Talk: Make 10
- 4.1: Revisit How Close?
- 4.2: Add and Subtract within 20

- Warm-up: Number Talk: Two-Digit, One-Digit
- 5.1: Revisit How Close, Add to 100
- 5.2: Add within 50

- Warm-up: Number Talk: Teen Numbers, Two-digit Numbers
- 6.2: Centers: Choice Time
- Section A Practice Problems

- Section B: Ways to Represent Data
- Warm-up: Notice and Wonder: Let’s Get There
- 7.1: How Do We Get to School?
- 7.2: Visual Representations of Data

- Warm-up: How Many Do You See: Dots within 10
- 8.1: Veggies People Love
- 8.2: Answer Questions

- Warm-up: Notice and Wonder: Favorite Pets
- 9.1: Field Trip Choices
- 9.2: Our Favorite Seasons

- Warm-up: Which One Doesn’t Belong: Data
- 10.1: Draw Picture Graphs
- 10.2: Draw Bar Graphs

- Warm-up: Number Talk: Make a Ten with 3 Addends
- 11.1: Write Questions Based on Graphs
- 11.2: Answer Questions Using Graphs
- Section B Summary

- Warm-up: Number Talk: Differences
- 12.2: Centers Choice Time
- Section B Practice Problems

- Section C: Diagrams to Compare
- Warm-up: True or False: Make Ten with 9
- 13.1: What’s the Difference?
- 13.2: Dogs in the Park

- Warm-up: Notice and Wonder: What Kind of Graph Is This?
- 14.1: Party Time (Part 1)
- 14.2: Party Time (Part 2)

- Warm-up: Number Talk: 10 and Some More
- 15.1: Shell Collections
- 15.2: Card Sort: At the Beach

- Warm-up: True or False: Multiples of 10
- 16.1: A Trip to the Library
- 16.2: Solve Compare Problems
- Section C Summary

- Warm-up: Number Talk: Add Ten More
- 17.2: Centers Choice Time

- Warm-up: What Do You Know About Bar Graphs?
- 18.1: Classroom Survey and Graph
- 18.2: I Ask, then You Ask
- 18.3: Analyze the Data with Diagrams
- Section C Practice Problems

- Glossary
- Attributions
- Notes
- Notes