数学的表記のレトリック認識 : 帯分数の四則演算の場合

概要

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Recent research findings of mine which have to do with rhetorical property on mathematical expression suggest that many children calculate mixed fractions in fail owing to their rhetorical property. So we research to clear the real state of children's rhetorical errors by investigating their calculation. We selected 5-8th grade students and undergraduates as our subjects for the perpose of seeing if learning letters in junior high school (in the 7th grade) influence to the children's rhetorical cognition. By the investigation to the children, some results were concluded. We show some of them as follows:1) The number of rhetorical errors on multiplication/division are more than that on addition/subtraction in each grade.2) A typical rhetorical error is found to each grade and to each problem.3) A rate of rhetorical errors to whole errors to each problem tends to lllcrease with developping up the grades.
宮崎大学の論文