@article{oai:air.repo.nii.ac.jp:00005264, author = {佐伯, 卓也 and Saeki, Takuya}, issue = {9}, journal = {東北数学教育学会年報}, month = {}, pages = {11--19}, title = {数学の授業における先行オーガナイザー研究}, year = {1978} }