| 摘要 |
PURPOSE: To support learners to acquire the process of thinking to find answers for practice problems. CONSTITUTION: Problem sentences are presented in a window 81A and the plural questions to enable learners to verify the understanding of the plural essential items to be understood in order to find answers are successively presented in a window 81B in compliance with the prescribed process of thinking. When the answer to any question is incorrect, a correct answer is presented and thereafter the next question is presented. When the answer to the question is correct, a corresponding middle point is given. The answers to the practice problems are accepted after the end of the answering to all the questions. The problem score of the learner is determined from the score for the answers of the practice problems and the middle point. The questions relating to the plural essential items substantially indicated in the problem sentences and the questions relating to the plural essential items not indicated in the problem sentences are included in plural questions described above.
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