Education and demonstration – Mathematics – Arithmetic
Patent
1990-06-14
1991-11-19
Bahr, Robert
Education and demonstration
Mathematics
Arithmetic
434207, 434258, 434429, G09B 100
Patent
active
050662341
ABSTRACT:
An educational toy for use in teaching a child the concepts of geometrical shapes, color, numbers, and sets of numbers. The toy includes a small can for storing the clips, and a large can for storing the small can, and a cover for the large can. The clip has a front board, a rear board, and an effortless spring-biased hinge. The front boards have a series of numbers, and the rear boards have a series of colored shapes, one number and one colored shape per clip. The small can has a series of panels and the large can has a series of panels, each series extending in a peripheral direction on the surface thereof. The panels on the small can have a gradually increasing number of figures; and the panels on the large can have a gradually increasing number of colored shapes. The child matches the numbers or shapes, or colors, in at leasst three different games to the panels of the small can, or the large can, by clipping each clip to a matching panel.
REFERENCES:
patent: 1244000 (1917-10-01), Soltoft
patent: 1359646 (1920-11-01), Zion
patent: 2417216 (1947-03-01), Sayre
patent: 3010226 (1961-11-01), Kalnins
patent: 3357116 (1967-12-01), Bazacos
patent: 4146977 (1979-04-01), Barberi
patent: 4378214 (1983-03-01), Scherer
patent: 4666163 (1987-05-01), Hirschfeld
Bahr Robert
Healey Rachel M.
Weiss Harry M.
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