VELA DE SEVILLANO, Julia D. The new approach to teaching mathematics in secondary school. Revista de Educación de Puerto Rico (REduca), [S. l.], v. 11, n. 2, p. 55–64, 2022. Disponível em: https://revistas.upr.edu/index.php/educacion/article/view/19732. Acesso em: 17 jul. 2024.