A Study of an Effective Teaching Method for Helping 5^<th> graders Understand Ideas to Find an Area of Triangles and Quadrilaterals and to Use them to Solve Problems

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  • 5学年「三角形・四角形の面積」単元における求積方法の習得と活用の指導に関する研究 : 与える足場からつくる足場への移行に焦点をあてて
  • 5 ガクネン サンカクケイ シカクケイ ノ メンセキ タンゲン ニ オケル キュウセキ ホウホウ ノ シュウトク ト カツヨウ ノ シドウ ニ カンスル ケンキュウ アタエル アシバ カラ ツクル アシバ エノ イコウ ニ ショウテン オ アテテ

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Abstract

This study examined the effectiveness of a teaching method that purposefully shifted the role of scaffolding from the teacher to peers, and focused ideas to find an area at the phase of scaffolding every lesson of this unit. A fifth grade teacher and her students working on a unit on "areas of triangle and quadrilaterals" participated in the study. The teacher modeled the scaffolding method in the first half and the latter of the unit, and the students applied the method among themselves in order to find a variety of solutions to area problems. The results showed that students successfully implemented the scaffolding method, which resulted in improved performance on area problems as well as mastery of a wider range of solution methods at the end of the unit.

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