# Contents

1. Section A: Add and Subtract Within 20
1. Warm-up: What Do You Know About Math?
2. 1.1: Check It Off: Add or Subtract within 10
3. 1.2: What’s the Value?
1. Warm-up: What Do You Know About 10?
2. 2.2: Sums of 10
1. Warm-up: Number Talk: Addition and Subtraction
2. 3.2: Make the Equation True
1. Warm-up: Number Talk: Make 10
2. 4.1: Revisit How Close?
3. 4.2: Add and Subtract within 20
1. Warm-up: Number Talk: Two-Digit, One-Digit
2. 5.1: Revisit How Close, Add to 100
1. Warm-up: Number Talk: Teen Numbers, Two-digit Numbers
2. 6.2: Centers: Choice Time
3. Section A Practice Problems
2. Section B: Ways to Represent Data
1. Warm-up: Notice and Wonder: Let’s Get There
2. 7.1: How Do We Get to School?
3. 7.2: Visual Representations of Data
1. Warm-up: How Many Do You See: Dots within 10
2. 8.1: Veggies People Love
1. Warm-up: Notice and Wonder: Favorite Pets
2. 9.1: Field Trip Choices
3. 9.2: Our Favorite Seasons
1. Warm-up: Which One Doesn’t Belong: Data
2. 10.1: Draw Picture Graphs
3. 10.2: Draw Bar Graphs
1. Warm-up: Number Talk: Make a Ten with 3 Addends
2. 11.1: Write Questions Based on Graphs
3. 11.2: Answer Questions Using Graphs
4. Section B Summary
1. Warm-up: Number Talk: Differences
2. 12.2: Centers Choice Time
3. Section B Practice Problems
3. Section C: Diagrams to Compare
1. Warm-up: True or False: Make Ten with 9
2. 13.1: What’s the Difference?
3. 13.2: Dogs in the Park
1. Warm-up: Notice and Wonder: What Kind of Graph Is This?
2. 14.1: Party Time (Part 1)
3. 14.2: Party Time (Part 2)
1. Warm-up: Number Talk: 10 and Some More
2. 15.1: Shell Collections
3. 15.2: Card Sort: At the Beach
1. Warm-up: True or False: Multiples of 10
2. 16.1: A Trip to the Library
3. 16.2: Solve Compare Problems
4. Section C Summary
1. Warm-up: Number Talk: Add Ten More
2. 17.2: Centers Choice Time
1. Warm-up: What Do You Know About Bar Graphs?
2. 18.1: Classroom Survey and Graph
4. 18.3: Analyze the Data with Diagrams
5. Section C Practice Problems
4. Glossary