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A1 السنيدي، سعيد A2 العابد، عدنان سليم AB This study aimed at investigating the effect of using a teaching program based on mathematical power on the acquisition of mathematical concepts for 8th grade students in light of their mathematical self-efficacy. The study sample was purposefully selected from two schools in Education Directorate of Muscat. Two groups were selected randomly in each school; one was assigned as an experimental group, instructed using a teaching program based on mathematical power, whereas the other was assigned as a control group, instructed by the traditional teaching method. After combining two groups, the total number of students in the experimental group was (50) males and females, while the total number of the control group was (53) males and females. An educational material was prepared based on mathematical power. Also, acquisition of mathematical concepts and mathematical self efficacy scales were prepared. The results showed statistically significant differences in the acquisition of mathematical concepts in favor of the experimental group. The results also showed statistically significant differences in the acquisition of mathematical concepts due to the interaction between teaching strategy and level of mathematical self-efficacy among 8th grade students, in favor of the experimental group. (Published Abstract) http://search.shamaa.org/abstract_en.gif OP ص ص. 233-249 T1 أثر برنامج تعليمي قائم على القوة الرياضية في اكتساب المفاهيم الرياضية لدى طلبة الصف الثامن في سلطنة عمان في ضوء فاعليتهم الذاتية [مقال] UL http://journals.yu.edu.jo/jjes/Issues/2019/Vol15No2/7.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif