Teaching apparatus and method for visually representing mathematical expressions
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United States of America Patent
Stats
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Oct 13, 1998
Issued Date -
N/A
app pub date -
Apr 7, 1997
filing date -
Mar 24, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for teaching mathematical expressions includes a plurality of four-sided members that represent the variables of factors of a mathematical expression. Each four-sided member has a different area representing a different variable in the mathematical expression. The apparatus enables a math student to visualize the rules that apply to mathematical expressions. The four-sided members include a first side having a first color and a second side having a second color, different from the first color, wherein the first side represents a positive number, and the second side represents a negative number. Alternatively, the sign may be distinguished by varying surface roughness of the members. The four-sided members can be used for teaching by illustration simple multiplication and division, multiplication, division and factorization of polynomials, linear equations including inequations and absolute value, and systems of linear equations.
First Claim
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