LEVIN, B. S.; MCGUFFEY, W. Preface. Journal of Mathematics Education at Teachers College, [S. l.], v. 6, n. 2, 2015. DOI: 10.7916/jmetc.v6i2.610. Disponível em: https://journals-test.library.columbia.edu/index.php/jmetc/article/view/610. Acesso em: 7 nov. 2024.