| 摘要 |
PURPOSE:to achieve the improvement in learning effect for learners by additionally presenting visual information such as instructions, answers, supplementary explanation, etc. CONSTITUTION:Learning is started by setting a magnetic sheet to a turntable 32, holding the same with a sheet press plate 31 and operating an operating switch 37. At the end of learning, problems associating to the contents of the study are presented and the reproduction stops. When the learner wishes to have hints for the problems, he presses a hint demand switch 38. Then, the sheet number corresponding to the hints having been stored in memory circuit is outputted and the required segments, e.g., 41, 42, 44, 46, 47 of thin-film patterns and fixed character patterns of transparent face form heating elements formed on the bottom plate of the sheet press plate are heated. When these heating elements reach color forming temperature the heat-sensitive color forming face of magneric sheet forms colors, thus presenting the visual information to the learner. When answers are wanted, the push of an answer demand switch 39 causes answer numbers to be presented. |
