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). Damascus University Journal of educational and Psychologyical sciences, [S. l.], v. 36, n. 2, 2021. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/eduj/article/view/741. Acesso em: 18 jun. 2026.