برنامج قائم على الأنشطة الإثرائية في الأنماط الرياضية لتنمية مهارات البرهان الرياضي لدى تلاميذ المرحلة الإعدادية
This research aims to determine the effectiveness of an Enrichment Activities Programto in Mathematical Patterns to Develop Mathematical proof skills for the second-year middle school students. This study covers a specified sample, Gr.8 literary section students at Doctor Muhammad Abu Al-Lail Preparatory School, temie alamdeed, aldakahliah, and was applied during the first semester of the school year 2019-2020, and dividing it into one group: (30), The dependent variable: Mathematical proof skills. The research came to the following findings: 1) There is a significant difference at (≤ 0.05) level between averages of student scores of both pre-scale and post-scale of Mathematical proof skills in favor of the post-scale. 2) There is no effectiveness in teaching the program of enrichment activities in developing mathematical proof skills for second-year middle school students. (Published abstract)