PROBLEM TO BE SOLVED: To provide a learning device which enables a learner to study with a plurality of teaching materials per teaching material and enables a plurality of learners to study by sharing the teaching materials and protects learners from intervention of third persons.;SOLUTION: The learning device is provided with; a plurality of storage parts for storing teaching material therein; a plurality of second storage parts for storing programs relating to the teaching materials in accordance with the first storage parts respectively: a correct answer delay means for outputting a correct answer to a question a certain time after presentation of the question in a teaching material in the first storage parts; and a means for updating a program for the teaching material, which is stored in a corresponding second storage part, in response to execution of an answering operation within a certain time after presentation of the question in the first storage parts. In the learning device, teaching materials are stored in the first storage parts by passwords, and input of a password enables study with a teaching material corresponding to this password to be performed.;COPYRIGHT: (C)2006,JPO&NCIPI
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