VLACHOU, R.; AVGERINOS, E. ?ult?ple representat?ons and development of students’ self-confidence on rational number. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology, [S. l.], v. 4, p. 567–586, 2018. Disponível em: https://www.edimast.it/index.php/edimast/article/view/59. Acesso em: 26 jan. 2022.