AU - العنزي، هلال بن مزعل بن هليل الدهمشي AB - This study aimed to investigate the impact of the educational scaffolding strategy in the development of mathematical achievement, engineering thinking and learning motivation for the second intermediate grade students in the light of their study of "geometry and spatial reasoning" chapter. The study was conducted in the first semester (1438/1439ah), at the Intermediate School of Prince Abdullah Bin Mesa'id in Arar, Saudi Arabia. The study used a quasi-experimental design. Where a (pre & post) achievement test (20 questions), a (pre & post) test in engineering thinking (20 questions), and a (pre & post) scale of motivation for learning school mathematics (25 items) were applied to two groups: a control group (28 students) and experimental group (29 students). The study showed the parity between the two groups in the pretest of the achievement test, the engineering thinking test and the learning motivation scale at the level of significance α≤0.05. On the other hand, the results indicated that the experimental group exceeded the control group in the posttest of the achievement test, the engineering thinking test, and the learning motivation scale at the level of significance α≤0.05; with a high level of impact of the used strategy. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 1-33 T1 - أثر استراتيجية السّقالات التعليمية في تنمية التحصيل الرياضي والتفكير الهندسي ودافعية التعلم لطلاب الصف الثاني المتوسط [مقال] UL - https://drive.uqu.edu.sa/_/jep/files/11-1/jep-11-1-1-15.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif