DEGRAAF, M.; SALMON-NEMBHARD, S. Preface. Journal of Mathematics Education at Teachers College, [S. l.], v. 5, n. 2, 2014. DOI: 10.7916/jmetc.v5i2.646. Disponível em: https://journals-test.library.columbia.edu/index.php/jmetc/article/view/646. Acesso em: 27 nov. 2024.