Al Abdallah, Saedah Eghzawi, Mamoon M. Alshannaq, and Abdallah M. Alkhataibeh. “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 47, no. 4 (December 1, 2020): 510–528. Accessed July 2, 2024. http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2522.