AU - الغامدي، أروى بنت عبد الكريم AU - السيف، مريم بنت محمد AB - The study aimed to identify the Effect of using flipped classroom strategy on achievement of third grade of secondary students in computer lessons and their attitudes it. This was done by Educational software designed by one of researchers and it contained two lessons from the fifth unit (Computer architecture) from Computer curriculum of the third secondary grade for the second semester. In this study we gave each student in the group that studied using flipped classroom strategy flash memory contain the educational Software. The study sample was formed from (41) secondary third grade female students whom are divided into two groups (control group and the experimental group), the control group consist of (20 students) and experimental consist of (21 students). The study relied on a Quasi-experimental method, and it used both achievement test in the computer curriculum, and the scale is used to determine the direction of student's attitudes towards it. The results have shown the study is effective and have a positive effect on raising the level of students' achievement and attitudes toward computer curriculum. At the end of the research, researcher presented a set of recommendations. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 60-67 T1 - أثر توظيف استراتيجية الفصول المقلوبة في رفع مستوى التحصيل لمادة الحاسب الآلي لدى طالبات الصف الثالث الثانوي واتجاهاتهم نحو المادة [مقال] UL - http://iijoe.org/v7/IIJOE_06_12_07_2018.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif