Supplementary teaching instruments

Details Supplementary teaching instruments Supplementary teaching instruments

1990-09-07

1992-04-28

Apley, Richard J.

Education and demonstration

Mathematics

Geometry, trigonometry, or physical mathematic model structure

273157R, 434208, G09B 2302

Patent

active

051082918

ABSTRACT:
A supplementary teaching instrument based on mathematical basic theories and principles as well as child psychology. The invention employs a number of rectangular blocks of a prescribed shape which occupy a predetermined area when assembled together, and a corresponding area of triangular shaped blocks of various sizes and shapes. In addition to creating artistic designs by different arrangements of the blocks which may be of different colors, the rectangular blocks can be used in the fashion of a domino game, and the dimensional relationship between the triangular blocks and the rectangular blocks teach the basic concepts of mathematics including addition, substraction, multiplication, fractions, areas, and the like.

REFERENCES:
patent: 356167 (1887-01-01), Shannon
patent: 1165980 (1915-12-01), Kurtz
patent: 1941558 (1934-01-01), Labbe
patent: 2738594 (1956-03-01), Swingle
patent: 3423849 (1969-01-01), Jordan et al.
patent: 3667760 (1972-06-01), Nelson
patent: 4645461 (1987-02-01), Mortensen

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