@article{oai:naruto.repo.nii.ac.jp:00027520, author = {丸林, 英俊 and 川上, 雅子 and MARUBAYASHI, Hidetoshi and KAWAKAMI, Masako}, journal = {鳴門教育大学研究紀要, Research bulletin of Educational Sciences, Naruto University of Education}, month = {Mar}, note = {We have known from the teaching experience that many students meet firstly the difficulties in understanding on the problem of maximum and minimum in quadratic functions after they entered to senior high school. So we analyzed answer papers on quadratic functions and knew that the main reasons of difficulties in understanding were caused by "complexity in dividing the intervals" and "illusion that the intervals and the graph of the quadratic functions were moving at the same time". We exploited teaching materials (so called "Kawaraban") and tools so that students could easily understand the problem above and we have individually guided four students with the teaching materials and tools. We found out that the methods were very useful for students to understand the problem., 国立情報学研究所『研究紀要公開支援事業』により電子化。}, pages = {179--187}, title = {2次関数の最大・最小におけるつまずきの分析および指導 : OHPシートを利用した個別指導の実践を通して}, volume = {18}, year = {2003}, yomi = {マルバヤシ, ヒデトシ and カワカミ, マサコ} }