To identify The Effect of Use of Mathematical Supported Units on Studying Swimming on the Belly of the Faculty of Physical Education Students. The researcher used the experimental method on a sample of (40) female students in the first class at the Faculty of Physical Education Girls Zagazig University, and they were divided into two groups, one experimental and the other a female officer of 20 students each. Research Tools: High IQ test - Physical abilities - Measurement of the level of performance of swimming on the abdomen - The units supported by animation. The researcher used the following statistical methods: arithmetical mean - standard deviation - median - torsion coefficient - simple correlation coefficient - T test - improvement ratios %. Among the most important results: 1- The use of educational modules supported by the animation of the members of the experimental group has a statistically significant impact on learning to swim crawling on the abdomen. 2- Using the method used (explanation and model) for members of the control group has a statistically significant impact on learning to swim crawling on the abdomen. 3- There were statistically significant differences between the experimental and control groups in the dimension measurements of the swimming lesson crawling on the abdomen and for the benefit of the experimental group used educational modules supported by animation. 4- The experimental group followed by the animation-supported units of the control group (model and model) in the rates of improvement of the distance measurement in the learning of swimming crawling on the abdomen.