@article{oai:juen.repo.nii.ac.jp:00006587,
 author = {高橋,  裕樹},
 issue = {17},
 journal = {上越数学教育研究, Joetsu journal of mathematics education},
 month = {Mar},
 pages = {177--186},
 title = {小数除法における認知モデルの発達について},
 year = {2002}
}