“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)” (2021) Damascus University Journal of educational and Psychologyical sciences, 36(2). Available at: https://journal.damascusuniversity.edu.sy/index.php/eduj/article/view/741 (Accessed: 18 June 2026).