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RAFT Idea
Abacus Variations
This easily created version of an abacus can teach place value and show how different cultures calculate. Abaci can even be based on math systems other than base 10!
Grades Covered: 1 through 8
Subjects Covered: Math
Curriculum topics:
- Math
- Place Value
- Historical Math Tools
- Addition
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Abacus Variations Image Gallery