Unit 1 : Fluently Addition and Subtraction Within 20
Unit 2: Work with Equal Groups
Unit 3: Add Within 100 Using Strategies
Unit 4: Fluency - Add Within 100
 Unit 5: Subtract Within 100 Using Strategies
Unit 6: Fluency - Subtract Within 100
Unit 7: Solving Problems Involving Addition and Subtraction
Unit 8: Work with Time and Money
Unit 10: Add Within 1,000 Using Models and Strategies
Unit 11: Subtract Within 1,000 Using Models and Strategies
Unit 13: Shapes and Their Attributes
Unit 14: More Addition, Subtraction, and Length