The Effect of Employing the Strategy of Numbered Heads in the Development of Scientific Thinking Skills in Science Subject for Sixth Grade students (An experimental study on a sample of sixth grade students in science in Damascus). مجلة للعلوم التربوية والنفسية [Internet]. 2021 Jul. 29 [cited 2026 Jun. 18];36(2). Available from: https://journal.damascusuniversity.edu.sy/index.php/eduj/article/view/741