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Geometry Teaching Aid

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DO IT YOURSELF ENTRY --- PURPOSE: To demonstrate the difference between various types of angles for young children with vision disabilities. This technique was developed by a third-grade student who is blind for teaching younger children. The student uses his folding travel cane to demonstrate a right angle, showing the other students that if the corner of a piece of paper fits in the angle between two sections of the cane, a right angle has been created. If the angle is smaller than the right angle, it is an acute angle. If a larger angle is created, there will be room left over when the corner of the piece of paper is inserted, and the angle is obtuse. Also, because the cane has four sections of equal length, it can be used to discuss the properties of squares. It can also be used to demonstrate a triangle with three acute angles. MATERIALS: Folding travel cane and a sheet of paper. TITLE: Austin’s Angles: Using the Folding Cane to Teach Geometry (in Springboard). AUTHOR: Ingle, A. JOURNAL: RE:view. Vol 37 no 1, Spring 2005: p. 27-29. PAGES (including cover): 4 2005.

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as of: 
09/21/2006