2022-01-27T20:46:59Zhttps://soar-ir.repo.nii.ac.jp/oaioai:soar-ir.repo.nii.ac.jp:000020962021-03-01T14:37:49ZDeveloping the Spatial Reasoning Ability in Lower Secondary School Mathematics -The Effect of 'Looking for Patterns' Strategy-中学校数学における空閤的推論能力の育成に関する研究―パターン発見方略の有効性―小口, 祐一3419空間的推論能力パターン発見方略正多面体展開図Problem solving, in itself a goal in learning mathematics, is also a means of developing new mathematical understanding. 'Looking for Patterns' is a strategy that has helped many students to solve mathematical problems. In this paper, I show how this strategy helps develop the spatial reasoning ability, i.e. to represent three-dimensional shapes in two dimensions and to construct three-dimensional shapes from two-dimensional representations. First, students were asked to construct some nets for regular polyhedrons. Students identified net patterns (ring, hook, U-shape) in the net of cube on the basis of symmetry. Second, they apply those patterns to a regular octahedron. I concluded that this strategy played a role in developing student's spatial reasoning ability.Article信州大学教育学部附属教育実践総合センター紀要 教育実践研究 3: 1-10(2002)departmental bulletin paper信州大学教育学部附属教育実践総合センター2002-07-31application/pdf信州大学教育学部附属教育実践総合センター紀要 教育実践研究31101345-8868AA11488517https://soar-ir.repo.nii.ac.jp/record/2096/files/CERT03-01.pdfjpn