Category: Math Training for Blind Students

Algebra Teaching Aid

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DO IT YOURSELF ENTRYPURPOSE: To assist individuals who are blind in learning to multiply monomials. The device provides a tactile representation of the FOIL method of multiplying (First terms in each set of parentheses; then the Outer terms; then the Inner terms; and then the Last terms). This article describes a set of manipulatives created to aid in locating the appropriate terms in the proper positions. The device uses a folder and four library card pockets. Two pockets are fixed to each half of the folder. Proceeding from left to right, each pocket is labeled in braille: The first pocket on the left is identified as "first" and "outer"; the second pocket is labeled as "inner" and "last". Similarly, the first pocket on the right is identified as "first" and "inner" and the second pocket is labeled as "outer" and "last". Along the top of the folder, braille labels reading "open parentheses" and "close parentheses" were fixed to correspond with the print equation. A stack of index cards for transcribing components of the equation as they occurred enabled the appropriate components to be placed in the appropriate pockets. Using the paretheses labels in combination with the components in the pockets, students can complete the operations, combine like terms, and solve the equation. AUTHOR: Amato, S. TITLE: Multiplying Monomials. JOURNAL: RE:view. REF: Vol. 33 no. 4, Winter 2002: p. 167-168. PAGES: 3 with cover. 2002.


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