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A1 البكل، دعاء جمال عبد الصمد A2 زكي، سعد يسي A2 رمضان، حياة علي محمد AB The study aimed at the recognition of the effectiveness of using Graphic Organizer in the development of scientific concepts in primary school. Teacher's Guide has been prepared to teach two units using the Graphic organizations, as well as student activity booklet to see what must be done during the study of the two units using the Graphic organizations (one of the strategic learning strategies), test current scientific concepts was also prepared by the researcher. The study sample consisted of (40) students in the fifth primary grade representing the experimental group was considering using Graphic Organizers strategy and the other representing the control group taught control group in the traditional way and numbered (40) pupils. The results of the study show that: 1) there are statistical significant differences on (0.01) level between the mean scores the mean scores of experimental and control groups in the post application to test concepts for the experimental group. 2) There are statistically significant differences at the level (0.01) between the mean scores of the experimental group in the two applications tribal and posttest to test concepts in favor of the dimensional application. (Published abstract) http://search.shamaa.org/abstract_en.gif OP ص ص. 717-752 T1 فعالية استخدام التعلم الاستراتيجي في تنمية المفاهيم العلمية في مادة العلوم لدى تلاميذ المرحلة الابتدائية [مقال] UL http://search.shamaa.org/PDF/Articles/EGBahtht/BahthtNo17P5Y2016/bahtht_2016-n17-p5_717-752.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif