@article{oai:ir.kagoshima-u.ac.jp:00012541, author = {大山, 正信}, journal = {鹿児島大学教育学部研究紀要. 人文・社会科学編, Bulletin of the Faculty of Education, Kagoshima University. Cultural and social science}, month = {2016-10-31}, pages = {161--170}, title = {算数教育における概念の形成}, volume = {18}, year = {} }