Contents

1. Section A: Count Groups of 11-20 Objects
2. Lesson 1: Count Larger Collections of Objects
   1. 1.3: Introduce Number Race, 11–20
3. Lesson 2: Keep Track of Objects
   1. Warm-up: Number Talk: Add and Subtract 0 and 1
   2. 2.3: Centers: Choice Time
4. Lesson 3: Count Carefully
   1. Warm-up: Notice and Wonder: Pile of Connecting Cubes
   2. 3.2: Count Carefully with Friends
   3. 3.3: Introduce Find the Pair, Make 5
5. Lesson 4: Does the Number Change?
   1. Warm-up: Notice and Wonder: Lots of Dots
   2. 4.2: Count, Rearrange, Recount
   3. 4.3: Introduce Tower Build, Count and Build to 20
   4. Section A Summary
   5. Section A Practice Problems
6. Section B: 10 Ones and Some More
7. Lesson 5: How Many Fingers? How Many Dots?
   1. Warm-up: Estimation Exploration: Connecting Cubes
   2. 5.1: How Many Fingers?
   3. 5.2: How Many Dots in 10-frames?
   4. 5.3: Introduce Grab and Count, Pattern Blocks
8. Lesson 6: Fingers and 10-frames
   1. Warm-up: How Many Do You See: 5 and Some More
   2. 6.2: Fingers to 10-frames
   3. 6.3: Revisit Number Race, Numbers 11–20
9. Lesson 7: Make Numbers with 10 and Some More (Part 1)
   1. 7.2: Add More Counters
   2. 7.3: Centers: Choice Time
10. Lesson 8: Make Numbers with 10 and Some More (Part 2)
    1. Warm-up: How Many Do You See: Numbers on a 10-frame
    2. 8.2: Make Each Number
11. Lesson 9: Expressions and Equations
    1. 9.2: Equations and 10-frames
    2. 9.3: Introduce Make or Break Apart Numbers, Numbers 11–19
12. Lesson 10: Complete Equations
    1. Warm-up: What do you know about 15?
    2. 10.1: What Is Missing?
    3. 10.2: Make the Equations True
    4. 10.3: Centers: Choice Time
    5. Section B Summary
    6. Section B Practice Problems
13. Section C: Count Groups of 11–20 Images
14. Lesson 11: Count Images (Part 1)
    1. 11.1: Find 10 Ones to Count
    2. 11.2: Color to Match Expressions
    3. 11.3: Centers: Choice Time
15. Lesson 12: Count Images (Part 2)
    1. Warm-up: Which One Doesn’t Belong: Tons of Tens
    2. 12.1: Count Images in Organized Arrangements
    3. 12.2: Count in Circles
    4. 12.3: Introduce Find the Pair, Make 10
    5. Section C Summary
16. Lesson 13: Fingerprint Animals
    1. Warm-up: How Many Do You See: Fingerprints or Animals?
    2. 13.1: Fingerprint Zoo Book Pages
    3. Section C Practice Problems
17. Glossary
18. Attributions
    1. Image Attributions
19. Notes
20. Notes