أثر توظيف ملف الإنجاز في تنمية القدرة الرياضية لدى طلبة الصف العاشر الأساسي بغزة

الملخص EN

The present study aimed to discover the effect of using portfolio in developing the mathematical ability among students of tenth grade in Gaza, the study followed the experimental method with the design of semi- experimental of the tribal dimensions type for two equivalent groups, where the study sample ( 78) students from tenth grade from Al-Burij secondary school "B" for girls, also it was used to answer for the main question of the study a test to measure the skills of the mathematical ability processes, where the results showed a statistically significant difference in the result of the mathematical ability test between the two applications ( pre & post ) in favor of the Experimental group, Also there is an effect for using portfolio in developing the mathematical ability.