الفهرس 
الفصل الأول: مشكلة البحث وإجراءاتهايوجد فقط 14 صفحة متاحة للعرض العام
 |  | from | 201 |  |  |
| | | from | 201 | | |
المستخلص
The purpose of research is to identify the impact of the use of Differentiated Instruction on Developing Mathematics Achievement and Problem - Solving Skills Tow Grade Preparatory pupils, and formed the research group of (70) pupils in Tow Preparatory Grade over two groups, one experimental include of (35)pupils and studied in according to Differentiated Instruction, and the second experimental include of (35) pupils and studied with the usual Instruction, and consisted tools Search: test to mesure the achievement and test to mesure Problem - Solving Skills, and research found the following results: there is a statistically significant difference between the average grades of the t experimental group students and degrees of the control group students in the post application for each of the test achievement and test Problem - Solving Skills for the benefit of students of the experimental group.