AL ABDALLAH, S. E. .; ALSHANNAQ, M. M. .; ALKHATAIBEH, A. M. . The effectiveness of a problems solving -based learning strategy in the development f spatial thinking In mathematics among seventh grade students at Irbid City. Dirasat: Educational Sciences, [S. l.], v. 47, n. 4, p. 510–528, 2020. Disponível em: http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2522. Acesso em: 2 jul. 2024.