Investigations in Number, Data, and Space, Grade 2: Curriculum Unit 1 Counting coins and combinations Teacher's Guide
Investigations in Number, Data, and Space, Grade 2: Curriculum Unit 7 Parts of a Whole, Parts of a Group Teacher's Guide
Investigations in Number, Data, and Space, Grade 2: Curriculum Unit 6 How Many Tens? How Many Ones? Teacher's Guide
How Many Floors? How Many Rooms? Investigations in Number, Data, and Space, Grade 2: Curriculum Unit 5 Teacher's Guide
Investigations in Number, Data, and Space, Grade 2: Curriculum Unit 9 Measuring Length and Time Teacher's Guide