The researcher used the experimental method due to its suitability to the nature of this study, It used one of the experimental designs for two groups, one experimental and the other a control To compare the pre and the post between them. The sample of the study was chosen from mentally disabled pupils enrolled in the school of thought in Minuf for the academic year 2015/2016. The sample consisted of (35) students from the total research community and distributed in two semesters, whose mental age ranged from 6-9 years, 12 years of age (born in 2004 to 2007) and their degrees of intelligence from 50 to 70 degrees on the Stanford-Binet Intelligence Scale were randomly divided and divided into two groups of 10 students for the experimental group and 10 students for the control group. (15) students from the research community and outside the basic sample to conduct the survey Scientific transactions (Believe - Stability). The researcher found the homogeneity of the sample of the research as a whole (35) students to make sure that it occurs under the normal curve in the variables (age - height - weight - mental age).