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"Abacus Basic Competency: A Counting Method," by Susan M. Millaway, is an instructional manual designed for teaching skills in performing the four basic math operations on the abacus to children and adults who are blind or have low vision. It comes in a large print edition, model 7-00219-00, and a braille edition, model 5-00219-00. The braille edition is 102 pages. This manual employs both instruction and exercises to teach abacus skills, using the Counting Method rather than traditional indirect methods. Advantages of the Counting Method include its comparability to the way sighted children learn to count and add, and the simplicity of its rules.
23.00 to 17.50
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