PORCEL GIRAUD, M. "Bridge Activities". A practical example to start working on math skills. (3 º ESO). Journal of Parents and Teachers, [S. l.], n. 329, p. 23–26, 2013. Disponível em: https://revistas.comillas.edu/index.php/padresymaestros/article/view/1293. Acesso em: 19 may. 2024.