TORRES, R.; SANCHEZ , M. Treatment of the concept of angle in elementary school textbooks in Chile. Contextos Educativos. Revista de Educación, [S. l.], n. 32, p. 289–304, 2023. DOI: 10.18172/con.5149. Disponível em: https://publicaciones.unirioja.es/ojs/index.php/contextos/article/view/5149. Acesso em: 19 may. 2024.