Hands-On Experience With The Cranmer Abacus


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Product Description: 

Hands-On Experience with the Cranmer Abacus is a math training program designed for use by students who are blind or have low vision. It consists of a DVD and an accompanying booklet designed to familiarize students with the basic mathematical uses of the Cranmer abacus, including how numbers are represented and how the four arithmetical operations (addition, subtraction, multiplication, and division) are performed.

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