Section A: Counting and Comparing

Section Summary

• Lesson 1 : Sort, Count, and Compare Groups of Objects

• Lesson 2 : Count and Compare Collections

• Lesson 3 : Count to Add and Subtract

• Lesson 4 : One More and One Less

• Lesson 5 : Order Numbers 1-20

Section B: Math in Our School

Section Summary

• Lesson 6 : Create Number Books (Part 1)

• Lesson 7 : Create Number Books (Part 2)

• Lesson 8 : Find Someone Who, Find Something That

• Lesson 9 : Where’s the Math?

• Lesson 10 : Tell Stories about Our School

• Lesson 11 : Share Story Problems

Section C: Fluency within 5

Section Summary

• Lesson 12 : Make Dot Images

• Lesson 13 : Dominoes to 5

• Lesson 14 : Sort and Color Expressions and Images within 5

• Lesson 15 : Addition and Subtraction Expressions within 5

• Lesson 16 : Parts to Make 5

Section D: All About 10

Section Summary

• Lesson 17 : Make and Break Apart 10

• Lesson 18 : All the Ways to Make 10

• Lesson 19 : Find the Number that Makes 10

• Lesson 20 : More or Less than 10?

• Lesson 21 : Compose and Decompose Numbers 11–19