Computer assisted teaching machine that uses two electroresistiv

Details Computer assisted teaching machine that uses two electroresistiv Computer assisted teaching machine that uses two electroresistiv

1984-09-13

1985-12-31

Grieb, William H.

Education and demonstration

Question or problem eliciting response

Correctness of response indicated to examine by...

G09B 706

Patent

active

045618526

ABSTRACT:
This invention uses preprinted instructional sheets that contain multiple questions, a plurality of answer choices, and response areas adjacent to answer areas. Underlying said instructional sheets are two sheets of electroresistive film, one sheet being positioned above the other; said sheets are usually not in contact with each other except at the times and the locations when downward pressure is exerted on a response area on an overlying instructional sheet. Along one vertical margin of one resistive sheet is a conductive strip. Along one horizontal margin of the second resistive sheet is a conductive strip. The different response areas on the instructional sheets are located in a grid pattern with X and Y coordinates paralleling the X and Y coordinates of the conductive strips on the resistive sheets. Downward pressure on a response area on an instructional sheet results in a switching action when one resistive sheet contacts the other, said switching action resulting in two different resistances being generated, and these two separate resistances identify the X and Y grid coordinates where the downward pressure occurred. The computer's memory has been preprogrammed to identify the correctness or incorrectness of this response area, and this information is fed back to the student, or this information may be used only for testing purposes.

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