** Abacus Activities
- Abacus Editor Greetings / Mary Lou Kestell & Kathy Kubota-Zarivnij
- RESEARCH SUMMARY -About Equality and Relational Thinking
- LET'S DO MATH: Determining Equivalence with True/False Sentences
- LINKS TO MANIPULATIVES: Developing Equivalence With a Rekenrek
- LINKS TO LITERATURE
- LET'S DO MATH: Establishing Equivalence With Open Number Sentences
- NEXT STESP FOR YOUR PROFESSIONAL LEARNING - Application to Your Classroom
- NEXT STESP FOR YOUR PROFESSIONAL LEARNING - Suggested Readings