@inproceedings{oai:soar-ir.repo.nii.ac.jp:00018684, author = {Fujita, Taro and Jones, Keith and Miyazaki, Mikio}, book = {Proceedings of the 35th Conference of the International Group for the Psychology of Mathematics Education}, month = {}, note = {Article, Proceedings of the 35th Conference of the International Group for the Psychology of Mathematics Education.Ankara, Turkey, 2011-7-10/15, 2011, 2:353-360.}, pages = {353--360}, publisher = {IGPME}, title = {Supporting students to overcome circular arguments in secondary school mathematics : the use of the flowchart proof learning platform}, volume = {2}, year = {2011} }