AU - شحاتة، محمد عبد المنعم AU - مصيلحي، نبيل صلاح AU - سلمي، عصام مرزوق سالم AB - The current study aimed to measure the effectiveness of using the 4MAT model in developing mathematical correlations skills among middle school students, and the study included five chapters, the first chapter of which dealt with the general framework of the study, which dealt with the study problem, its definition and study plan, and the second chapter dealt with the theoretical framework Which included three axes, the first axis dealt with the format model, and the second axis dealt with mathematical correlation skills, while the third axis dealt with the relationship between the formation model and mathematical correlation skills, and the third chapter dealt with preparing experimental treatment tools, including the student’s book in the repeated (real numbers) unit. Formulated according to the 4MAT form and the teacher's guide for teaching this unit, and also dealt with preparing the mathematical correlation skills test, and the experimental study procedures, and the study was applied to a sample of (70) students from the Bir al-Abed Preparatory School for Boys affiliated to the Bir al-Abd Educational Administration in North Sinai In the first semester of the 2019-2020 academic year, an experimental group of (36) students was divided into two groups, and a control group of (3) 4) A student, and the fourth chapter dealt with the results of the study that showed the effectiveness of using the FORMAT model (4MAT) in developing mathematical coherence skills as a whole and subskills separately at the level of (0.01) among middle school students, and finally providing recommendations and proposals for the study. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 175-208 T1 - فاعلية نموذج الفورمات في تنمية الترابطات الرياضية لدى تلاميذ المرحلة الإعدادية [مقال] UL - https://foej.journals.ekb.eg/article_238539_24e6da8a2f976c537d460f243d69ef1a.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif