Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YAMAGUCHI Takeshi and NAKAHARA Tadao and KOYAMA Masataka and OKAZAKI Masakazu and YOSHIMURA Naomichi and KATO Hisae and WAKISAKA Ikufumi and SAWAMURA Masaharu,Research on Development of the Prescriptive Model for Designing Social Interactions in an Elementary Mathematics Class Based on the Multi-world Paradigm (Ⅲ): Verification of Its Effectiveness through Teaching and Learning of ‘Fractions’ in Fourth Grade,Journal of JASME : research in mathematics education,13412620,Japan Academic Society of Mathematics Education,2014-06-14,20,2,93-112,https://cir.nii.ac.jp/crid/1390845713038906368,https://doi.org/10.24529/jasme.20.2_93