逆思考型を対象とした算数文章題の作問学習支援システムの設計開発と実践的利用

概要

論文の詳細を見る
In this paper, interactive environment for learning by problem posing for reverse-thinking problems and its practical use are described. We have already developed several interactive learning environments for learning by problem-posing. In this research, we have paid a special attention to ``reverse-thinking problems'' in arithmetic word problems that can be solved either by addition or subtraction. In the reverse-thinking problems, since ``story operation structure'' and ``calculation operation structure'' are different, they require learners to comprehend the relations between problems and solutions more than ``forward thinking problems'' where ``story operation structure'' and ``calculation operation structure'' are the same ones. Based on a learning environment for posing the forward thinking problems developed previously, we have expanded it for reverse thinking problems. This learning environment has been used in a class of fourth grade at an elementary school for seven lesson times. We have also reported the results of this practical use.