Al-Deeb, Majed. “The Effectiveness of Teaching an Improved Unit in Geometry According to TRIZ Theory in the Development of Creative Thinking and Cognitive Achievement”. Jordan Journal of Educational Sciences 14, no. 3 (September 1, 2018): 253–265. Accessed April 19, 2025. https://jjes.yu.edu.jo/index.php/jjes/article/view/727.