Investigations in Number, Data, and Space, 2e ©2008
Research and Validity
- Program Philosophy
- Investigations in Number, Data, and Space, Second Edition
- Investigations in Number, Data, and Space, Second Edition
- Research Articles
- Assessing Elementary Understanding of Multiplication Concepts
- The Investigations Curriculum and Children’s Understanding of Whole Number Operations
- Assessing Elementary Understanding of Multiplication Concepts
- Scientific Research Base
- Formative Research
- Summative Research
- Latest Research Release
