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Class Information
Number: 434/344
Name: Education and demonstration > Question or problem eliciting response > Correctness of response indicated to examine by self-operating or examinee actuated means > By means including electrical component > Correct answer illuminated
Description: Subject matter wherein the correct answer to a question or problem is present on a carrier surface but is not visible to an examinee until the correct response is selected, at which time the correct answer is illuminated and revealed.

Patents under this class:

Patent Number Title Of Patent Date Issued
6632096 Method and apparatus for teaching and learning Oct. 14, 2003
4824376 Educational device Apr. 25, 1989
4731027 Educational teaching toy Mar. 15, 1988
4228596 Illuminated teaching device and board game Oct. 21, 1980
4085523 Teaching machine Apr. 25, 1978
4051608 Teaching machine Oct. 4, 1977
4001948 Light response teaching system Jan. 11, 1977
3977092 Teaching machine card Aug. 31, 1976
3974575 Teaching machine Aug. 17, 1976

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