اثر استراتيجية التعلم التعاوني على التحصيل الدراسي في مادة ...
The present study aims to know the effect of using a strategy of cooperative learning on achievement in natural science with students the first year average compared to the usual way of teaching. Used in this study design similarities demo known design measurement tribal dimensional two groups, one officer, and another experimental study sample consisted of two sections of the first year ...