Didactic game based on selection of the trajectories followed by

Details Didactic game based on selection of the trajectories followed by Didactic game based on selection of the trajectories followed by

1983-03-29

1984-10-02

Grieb, William H.

Education and demonstration

Mathematics

Base conversion or use of base other than ten

235 68, 273118R, G09B 1902, A63F 702

Patent

active

044745583

ABSTRACT:
A didactic game wherein a number of balls are allowed to roll by gravity along a guide channel on a play plate. The guide channel has bifurcations controlled by switch means provided with manual control members for selecting the trajectory of each ball and direct the same towards a specific nest of a plurality of nests arranged at the outlet of the ramifications of the guide channel. All switch means of the same order are connected to a single collective control member. The two positions of each control means are designed by the digits 0 and 1, which, read from the top towards the bottom, indicate in binary numeration the progressive number of the nest made reachable by the ball. This progressive number is marked in decimal numeration in the nests. The game may be used, in addition to play purposes, also for explicating and fix in the memory the practice of translating numbers from one to the other system of numeration.

REFERENCES:
patent: 2782037 (1957-02-01), Rovira
patent: 2875529 (1959-03-01), Cornelius
patent: 3006082 (1961-10-01), Libbey
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patent: 3278187 (1966-10-01), Sinden
patent: 3388483 (1968-06-01), Weisbecker
patent: 3419972 (1969-01-01), Kitzinger
patent: 3747844 (1973-07-01), Youngman
patent: 3807736 (1974-04-01), Goldfarb et al.
patent: 3994076 (1976-11-01), Bertman
patent: 4006344 (1977-02-01), Schutte

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