AU - جاد الحق، نهلة عبد المعطي الصادق AB - This research aimed at developing some cognitive thinking skills and mind habits of the first year prep stage students. The researcher prepared a Teacher's Guide to teach the Unit of "Variation and Adaptation in Living Creatures" in Science of the first year prep stage students during the first term 2013-2014 by the use of Visual Thinking Networks. Cognitive Thinking Skills Test, Mind Habits Scale were also prepared. The tools were pre-post applied to both the experimental group (37) students and the control group (36) students at El Ghar Joint Prep School. The Science experimental group teacher taught the class using Visual Thinking Networks after training him and the control group teacher taught the class using the traditional method. The results of the study indicated that Visual Thinking Networks had a great effect on developing cognitive thinking skills and mind habits of the first year prep stage students. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 125-170 T1 - تنمية بعض مهارات التفكير المعرفية وعادات العقل باستخدام شبكات التفكير البصري لتدريس العلوم لدى تلاميذ المرحلة الإعدادية [مقال] UL - http://search.shamaa.org/PDF/Articles/EGAsep/AsepNo57Y2015/asep_2015_n57_125-170.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif