| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in which it is difficult for a teacher to give hints and explanations beforehand for all problems although high educational effects are obtained by implementing many problems in an education method like case study. SOLUTION: In an exercise wherein a plurality of learners try to solve one problem, a place in the problem to which a fixed number of learners give annotations is detected and the place is shown as a hint to learners who do not give annotations to the place. A place to which only a small number of learners give annotations is detected and judged as a place which learners less understand or a place which is misunderstood, and the place is presented to the teacher. COPYRIGHT: (C)2005,JPO&NCIPI
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