文章題の答えの見積もりと問題解決能力との関連
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概要
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It is pointed out that solving a word problem is difficult for the elementary school children. In order to overcome this difficulty, it is considered that improving their problem solving ability is needed. Then the auther consider that incorporating estimation activity into problem solving process is effective for it and choosing operation. Estimation activity is to anticipate and calculate roughly an approximate answer before calculating the exact answer of problem. It has been pointed out that estimation activity in the arithmetic eduation is very important. Rvewing the previous studies about estimation activity, there are many studies about computational estimation on one hand. On the other hand there are few studies that relate estimation activity with problem solving and choosing operation. The purpose of this paper is to review the previous studies on estimation of the answer of a word problem, to consider about the signification of estimation activity, and to clarify the effect of it through the investigation with the 6th grade children. Consequently, the following results are found out: (1) Estimation activity promotes an analysis of problem and provides an appropriate orientation basis. (2) It seems that estimation activity can improve the problem solving ability of elementary school children. (3) Estimation is effective on the simple word problem involving decimal number and fraction. (The simple word problem mesns a problem that can be solved by one operation.) (4) If we incorporate estimation activity into daily arithmetic lesson, it will help the problem solving ability grow up.
- 全国数学教育学会の論文
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関連論文
- D3 算数学習における見積もり活動に関する考察 : 量の大きさの見積もり活動を中心にして(D 図形・幾何/測定, 第II編 第36回数学教育論文発表会発表論文要約)
- 文章題の答えの見積もりと問題解決能力との関連
- D3 算数学習における見積もり活動に関する考察 : 量の大きさの見積もり活動を中心にして(D.【図形・幾何/測定】,論文発表の部)