فاعلية التدريس وفق نموذج ابعاد التعلم لـ (مارزانو) في تنمية تحصيل الرياضيات لدى تلاميذ المرحلة الابتدائية

The study aimed to reveal the effectiveness of the Dimensions of Learning model of (Marzano) in developing the mathematics achievement of third-year students of the primary school stage. In order to verify the objective of the study, the researcher adopted the experimental method by designing two experimental and control groups with a tribal and remote measurement. The study was applied to a sample of (199) students, including (133) experimental groups and (66) control groups. Education sciences to verify the content’s validity and through the (Lawchi) equation prove its validity, and also approved the results of the quarterly tests prepared according to the model approved in the end-of-primary education exam. The study concluded: There are no statistically significant differences between the two groups (experimental and control) in the achievement of mathematics in the pre-test. an‎d there were statistically significant differences between the two measurements (pre and post) in the mathematics achievement of the experimental group in favor of the post test. The effectiveness of teaching according to Marzano's Learning Dimensions model was also confirmed through the ETA test. The researcher concluded with recommendations and suggestions.