Education and demonstration – Mathematics – Arithmetic
Patent
1979-11-28
1982-06-29
Grieb, William H.
Education and demonstration
Mathematics
Arithmetic
434335, G09B 700
Patent
active
043370470
ABSTRACT:
An electronic learning aid automatically develops and displays problems, and functions to compare an answer introduced by a student with a correct answer stored in the electronic learning aid. A time counter is provided for counting a time period required by the student for conducting the exercise. A manual stop switch is provided for terminating the automatic development of the problems and the counting operation of the time counter. Upon actuation of the manual stop switch, the time period stored in the time counter and the number of problems which have been solved are displayed on a display panel. In another form, a preselected time period is stored in a memory, and the automatic problem generation is conducted till the time counter counts up the time period identical with the preselected time period.
REFERENCES:
patent: 3584398 (1971-06-01), Meyer et al.
patent: 3800524 (1974-04-01), Matsumura et al.
patent: 4052799 (1977-10-01), Journet
patent: 4118876 (1978-10-01), Brilakis
Grieb William H.
Sharp Kabushiki Kaisha
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