Contents

1. Section A: Add and Subtract Within 20
2. Lesson 1: Add and Subtract Within 10
   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?
3. Lesson 2: Relate Addition and Subtraction within 10
   1. Warm-up: What Do You Know About 10?
   2. 2.2: Sums of 10
4. Lesson 3: Relate Addition and Subtraction within 20
   1. Warm-up: Number Talk: Addition and Subtraction
   2. 3.2: Make the Equation True
5. Lesson 4: Add and Subtract Your Way
   1. Warm-up: Number Talk: Make 10
   2. 4.1: Revisit How Close?
   3. 4.2: Add and Subtract within 20
6. Lesson 5: Add Within 50
   1. Warm-up: Number Talk: Two-Digit, One-Digit
   2. 5.1: Revisit How Close, Add to 100
   3. 5.2: Add within 50
7. Lesson 6: Center Day 1
   1. Warm-up: Number Talk: Teen Numbers, Two-digit Numbers
   2. 6.2: Centers: Choice Time
   3. Section A Practice Problems
8. Section B: Ways to Represent Data
9. Lesson 7: Collect and 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
10. Lesson 8: Interpret Picture Graphs
    1. Warm-up: How Many Do You See: Dots within 10
    2. 8.1: Veggies People Love
    3. 8.2: Answer Questions
11. Lesson 9: Interpret Bar Graphs
    1. Warm-up: Notice and Wonder: Favorite Pets
    2. 9.1: Field Trip Choices
    3. 9.2: Our Favorite Seasons
12. Lesson 10: Represent Data Using Picture Graphs and Bar Graphs
    1. Warm-up: Which One Doesn’t Belong: Data
    2. 10.1: Draw Picture Graphs
    3. 10.2: Draw Bar Graphs
13. Lesson 11: Questions About Data
    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
14. Lesson 12: Center Day 2
    1. Warm-up: Number Talk: Differences
    2. 12.2: Centers Choice Time
    3. Section B Practice Problems
15. Section C: Diagrams to Compare
16. Lesson 13: Use Bar Graphs 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
17. Lesson 14: Use Diagrams to Compare
    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)
18. Lesson 15: Diagrams with All Kinds of Compare Problems
    1. Warm-up: Number Talk: 10 and Some More
    2. 15.1: Shell Collections
    3. 15.2: Card Sort: At the Beach
19. Lesson 16: Solve All Kinds of Compare Problems
    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
20. Lesson 17: Center Day 3
    1. Warm-up: Number Talk: Add Ten More
    2. 17.2: Centers Choice Time
21. Lesson 18: Class Surveys
    1. Warm-up: What Do You Know About Bar Graphs?
    2. 18.1: Classroom Survey and Graph
    3. 18.2: I Ask, then You Ask
    4. 18.3: Analyze the Data with Diagrams
    5. Section C Practice Problems
22. Glossary
23. Attributions
24. Notes
25. Notes