AL ABDALLAH, Saedah Eghzawi; ALSHANNAQ, Mamoon M.; ALKHATAIBEH, Abdallah 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: https://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2522. Acesso em: 1 may. 2026.