GOZIM, Mohamed; HERMEZ, Djamila. the effectiveness of the differentiated education strategy in teaching mathematical concepts to educationally retarded pupilsin the first-grade school . Al-Jamie Journal In Psychological Studies and Educational Sciences, [S. l.], v. 6, n. 1, p. 353–372, 2021. Disponível em: https://journals.univ-msila.dz/index.php/ajpe/article/view/9461. Acesso em: 18 apr. 2026.