ALFARHAN , I. . The Effectiveness of Teaching Science Using Needham’s Structural Model in Developing Levels of Cognitive Depth and Critical Thinking Skills of Sixth Grade Students. Dirasat: Educational Sciences, [S. l.], v. 47, n. 4, p. 104–123, 2020. Disponível em: https://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2445. Acesso em: 4 dec. 2025.