Educational game or test using projected slides has coded answer on slide frame for comparison with pupil's answer by machine

摘要

The data processing system is to be used in real time for the control of test, examinations and educational games. Slides forming a program of work are stacked in a projector (1) and each slide is projected in turn onto a screen (2). The information is'read'by the optical system fof the projector. The slide poses a problem for the pupil to resolve, the correct answer being recorded in code form on the frame of the slide. The user puts his answer into a response panel (6) and the machine compares this with the correct answer. The result of the comparison is then displayed on the response panel. The number of response panels may be increased, and the slides used readily changed.