AU - الحربي، وفاء عابد منور AU - عسكول، سناء صالح AB - This study aims to identify the effectiveness of participation in a blog for extra-curricular activities for developing the critical thinking skills of third secondary students in Jeddah. The sample consisted of (100) students from several schools in Jeddah, Saudi Arabia randomly selected and divided into (50) experimental group, (50) control group. The study used the semi-experimental method and conducted the Watson and Glaser test for critical thinking. The results of the study showed that there were statistically significant differences (0.05) among the experimental group (individual and cooperative) for the officer in the brother bar dimensional test critical thinking skills for the benefit of the experimental group because of its effect for the use of a typical blog (single, cooperative). (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 71-95 T1 - فاعلية المشاركة في مدونة إلكترونية للأنشطة غير الصفية في تنمية مهارات التفكير الناقد لدى طالبات الصف الثالث الثانوي بمدينة جدة [مقال] UL - https://www.ajsrp.com/journal/index.php/jeps/article/view/2402/2276 النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif