Al-Zoubi, Abdullah Salem. 2020. “The Effects of Using Adey & Shayer’s Modified Model in Teaching Astronomy on Improving Problem Solving Skills and Development of Divergent Thinking Skills Among Eighth Grade Students in Jordan”. Dirasat: Educational Sciences 47 (1):320-31. http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/1761.