Electronic learning aid operable in an examination mode

Education and demonstration – Mathematics – Arithmetic

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G09B 1902

Patent

active

043210465

ABSTRACT:
An electronic learning aid is disclosed, which 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 mode selection switch is provided for selectively placing the electronic learning aid in an exercise mode and in an examination (test) mode. In the exercise mode, a symbol display is energized for displaying information as to whether the introduced answer is correct or not upon every introduction of the answer by the student. In the examination (test) mode, the symbol display is not conducted, and a percentage score is displayed after completion of a series of problems.

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patent: 4051608 (1977-10-01), Duncan
patent: 4089124 (1978-05-01), Burts et al.
patent: 4117607 (1978-10-01), Gill
patent: 4217656 (1980-08-01), Hirano et al.

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