The effect of using the round robin in learn the art of performing some volleyball skills and developing the tendency towards physical education for secondary students

The research aims to identify:- The relationship between mental alertness and psychological flexibility among students of the Department of Physical Education and Sports Sciences at the Faculty of Al-Noor University The researchers used the descriptive curriculum to suit the nature of the current research, and the research community included the 198 students in the Department of Physical Education and Sports Sciences at al-Nour University School for the academic season (2021-2022) and the 198 students distributed throughout the courses. The research sample included 150 students from the research community to represent the final application sample, and the researchers used the spss statistical package to analyze the results of the research.The researchers concluded:- There is a morally significant correlation between mental alertness and psychological flexibility among students in the Department of Physical Education and Sports Sciences at the University College of Al-Noor.