Keller strategy is one of the methods of individualizing education and is based on studying the learner of the educational material according to his abilities and his high speed, and thus the basic principle on which .Therefore, this strategy in learning is that the learner absorbs all the concepts of the unit education, skill and proficiency before moving to the next unit, and thus I have to each learner is required to be a contributing and active member in the educational process rather than being a Passively accepting only the information conveyed to him by the teacher. The learner must be a participant in all activities to master the specific educational goals. The most important conclusions were: 1. The emergence of a clear improvement in the skill performance of the research variables in the basic skills of handball (handling, shooting accuracy) and for the experimental and control groups in the pre and posttests and posttests in favor of the post test. 2. Keller strategy has a clear effect on the skillful performance of the research variables in the basic skills of handball (handling, shooting accuracy) in terms of significant statistically significant differences in the results of the post-tests conducted for the experimental group.