International Journal of Contemporary Research in Multidisciplinary

Teaching methods have evolved in the teaching and educational process due to the development of research in physical education, and it is necessary to use many new methods to build and develop the players’ abilities, skills, and motor abilities, and their importance in the field of modern learning methods and methods, so that it can keep pace with the progress made in the field of learning and teaching processes, and the importance is evident. The research is that mastery learning in a variable exercise method involves learning some motor abilities and accuracy of tennis performance at the age of 16–17 years in order to advance the learning process for the better, and from here the researcher noticed, through his presence in the field and academic field, the weakness and variation occurring in the level of players’ performance due to the lack of diversity. using new educational methods that work to simplify understanding and realizing the correct performance of tennis skills. Therefore, the researcher decided to use new methods in teaching players, including the use of mastery learning in a variable exercise method. The research aims to establish the effectiveness of peer education for cooperative learning in learning some basic skills in the game of tennis accuracy. The researcher used the experimental method with a pre- and post-test for the experimental and control groups to suit the nature of the research. The research population was identified as the tennis players for the Shooting Sports Club in Baghdad Governorate for the 2021 sports season, and they numbered 12 players. The research sample was chosen using a comprehensive enumeration method, and the sample was divided. It was divided into two experimental groups and a control group, with six players in each group. Mastery learning was applied in the variable exercise method for a period of six weeks, with three educational units per week. The researcher used the statistical package SPSS to process the data, and the researcher reached the most important conclusion that mastery learning in the variable exercise method had an impact. Positive in learning some motor abilities and accuracy of playing tennis at the age of 16–17 years.