characterised by modifying the teaching program in response to a wrong answer, e.g. repeating the question or supplying further information

Full Title

Electrically-operated teaching apparatus or devices working with questions and answers (mechanically operated G09B3/00; computing arrangements G06F) > of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers > characterised by modifying the teaching program in response to a wrong answer, e.g. repeating the question or supplying further information