شبكة المعلومات العربية التربوية

The study aimed to identify the impact of the clarity of the presentation using a multimedia learning system in the swimming of back among the specialized school students. The researcher used the experimental approach through designing two equal groups of ante and posttest on a sample of students from beginner to advanced specialized schools for swimming whose ages between the years (2003- 2005) totaling 30 students. Harmonies were made to them in some Anthropometric variables. Then they have been divided into two groups, control and experimental .The means, which were chosen, suit the subject of research. The variables were determined and adjusted, and the selection the test of back swimming which suit the research sample and their ages. After the implementation of the method using the system under the experimental group. The results were processed statistically, and that were presented in forms of charts and statistical tables. The researcher found a clear improvement in learning of swimming of back among students who have been taught in a manner and clarity of presentation using multimedia system, and their superiority over the students who have learned without using it.(Published abstract)