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For ages seven to twelve. The Rainbow Abacus is another model developed for elementary and middle ..
For ages ten to adult. Rainbow Blocks are math models designed
for middle school students or ma..
For ages three to adult. Rainbow Hexagons are a new Math Model in six different rainbow colors for..
For ages two to seven. Rainbow Rods are a new Math Model designed for young children..
For ages seven to adult. Rainbow Squares are another neat Math Model designed for elementary, secon..
For ages seven to twelve.Rainbow Sticks are manipulative models for elementary students. This..
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