فاعلية استراتيجية تعليمية مقترحة باستخدام برمجية جيوجبرا (Geogebra)‎ لتنمية البراعة الرياضية لدى تلاميذ الصف الثالث الإعدادي

الملخص EN

The purpose of this research is to investigate the effectiveness of a suggestedEducational Strategy by, (Geogebra Software) in developing Mathematical Proficiency among third year preparatory school students.

The researcher prepared a list of mathematical proficiency indicators with its three components (conceptual comprehension, adaptive reasoning, and strategic competence) that are required for third year preparatory school students after learning the circle topic through the second semester of the academic year 2019-2020.

A mathematical proficiency test was prepared to measure these indicators.

Then the suggested teaching teacher's guide and student's activities notes were prepared.

The sample of the research was selected and consisted of eighty (N=80) students from Aghour Elkoubra preparatory school and Tant Elgezira preparatory school at Toukh educational administration.

The students were divided into two equivalent groups and the experimental group trained on how to use Geogebra software and recognize its components in four sessions, then the first six lessons from circle topic were taught where the control group taught with regular method.

The results revealed that the experimental group outperformed than the control one in mathematical proficiency as a whole and in each Component from its three Components and in each indicator from mathematical proficiency indicators.

The effect size of the suggestedEducational Strategy for developing mathematical proficiency and its indicators was large.