Chapter 1: Two-Color Counters
- Activity 1.1 One-to-One Correspondence Recording Sheet
- Activity 1.2 Cardinality Numeral Cards and Recording Sheet
- Activity 1.3 More or Less Recording Sheet and Numeral Cards
- Activity 1.4 Sorting and Counting Recording Sheet
- Activity 1.5 Decomposing Numbers Into Pairs in More Than One Way Recording Sheet
- Activity 1.6 Make a Ten Numeral Cards and Recording Sheet
- Activity 1.7 Commutative Property of Addition With Two Colors Expression Cards and Recording Sheets
- Activity 1.8 Teen Cards
- Activity 1.8 Number Pairs Recording Sheet
- Activity 1.8 Ten Ones and Some More Ones and One Group of Ten and Some More Ones Activity Video
- Activity 1.9 Even and Odd Activity Sheet
- Activity 1.9 Even and Odd Recording Sheet
- Activity 1.13 Graph It! Data Set Cards
- Activity 1.13 Graph It! Recording Sheet
- Activity 1.13 Data Collection and Graphing Activity Video