LANGRALL, C. W. Teachers Engaged in Research: Inquiry into Mathematics Classrooms, Grades 3-5. Education Review, [S. l.], 2015. DOI: 10.14507/er.v0.786. Disponível em: https://edrev.asu.edu/index.php/ER/article/view/786. Acesso em: 23 feb. 2024.