ACOSTA NARVÁEZ, J. A.; HERMOSA QUINTERO, R. The mobilization of mathematical competence “"reasoning and argument" through the study of arithmetic mean. Amazonia Investiga, [S. l.], v. 4, n. 7, p. 6–18, 2015. Disponível em: https://amazoniainvestiga.info/index.php/amazonia/article/view/690. Acesso em: 3 jul. 2024.