Knowledge of preservice elementary teachers on fractions. Uniciencia, [S. l.], v. 35, n. 2, p. 1–17, 2021. DOI: 10.15359/ru.35-2.10. Disponível em: https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/14502.. Acesso em: 18 jul. 2024.