Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 青山 庸 and Aoyama Isao,A Practical Study of Teaching and Evaluation Adopting an Open-Approach Strategy : Focus on Elementary Mathematics,仁愛大学研究紀要. 人間生活学部篇,21853363,仁愛大学,2011-12-30,,3,23-39,https://cir.nii.ac.jp/crid/1390014115883913088,https://doi.org/10.57426/00000733