Teaching aid for mathematics

Details Teaching aid for mathematics Teaching aid for mathematics

G - Physics

09

B

35/37

G09B 3/02 (2006.01) G09B 19/02 (2006.01)

Patent

CA 1114602

TEACHING AID FOR MATHEMATICS ABSTRACT OF THE INVENTION: An arithmetic teaching aid For demonstrating the spatial relationship between positive and negative numbers to enable the teaching of operations in the set of integers, and includes a mirror surface with an arm projecting at an angle of ninety (90°) degrees therefrom and having integers representing positive numbers spacedly and vertically arranged thereon so that the images of integers reflected by the mirror surface will indicate, to students viewing from the front, negative integers and their relationship to the positive integers.

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