RUIZ, Ángel. Challenges for mathematics teacher preparation in the third decade of this century . Innovaciones Educativas, [S. l.], v. 23, n. 34, p. 204–208, 2021. DOI: 10.22458/ie.v23i34.3516. Disponível em: https://revistas.uned.ac.cr/index.php/innovaciones/article/view/3516. Acesso em: 21 nov. 2024.