@article{oai:niigata-u.repo.nii.ac.jp:00028981, author = {田中, 佳江}, issue = {2}, journal = {数学教育研究, 数学教育研究}, month = {Oct}, pages = {44--49}, title = {分数の意味の実感的な理解を図る指導}, volume = {44}, year = {2009} }