أثر تدريس العلوم باستخدام التّعلم التّعاوني (إستراتيجيّة جيجسو 2) في تنمية مهارة الحوار العلمي لدى طلّاب الصّف السادس الابتدائي
The research aims to investigate the impact of teaching science using collaborative learning (Jigsaw 2 Strategy) on developing the skill of scientific dialogue among sixth grade students. The researcher used in his research a quasi-experimental design known as the pre-and-post measurement design for two groups one is an experimental group and the other is a control one. The research sample consisted of (40) students at Salaheddin Al-Ayoubi Primary School in Onaizah Governorate. The sample was divided into two groups: the experimental group with number of 20 students, and the control group with number of 20 students. To measure the pre-and-post performance of the experimental group and the control one in the skill of scientific dialogue, the researcher has designed measure and note card for the skill of scientific dialogue. The researcher applied the tools of the research on the two groups priorly, and then the two groups had been taught for a period of (8) weeks. After the completion of the application of the experiment, the measure and the note card were applied posteriorly. The results showed that there is a difference with statistical significant between the mean scores of students in the control group and those of students in the experimental group in the post-application of the scale of scientific dialogue skill for the benefit of the experimental group. Thus, this research concludes that the use of collaborative learning (Jigsaw 2 Strategy) in Teaching of Science has a positive impact on developing the skill of scientific dialogue among sixth grade students. (Published abstract)