mohamed.boudiaf (2026) “Reducing abstraction in mathematics:the case ofcurriculums- first middle schoolin Algeriaas a model”, Human Resources Development Research, 17(02), pp. 326–348. Available at: https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/447 (Accessed: 2 November 2026).