Experimental Study On The Flexibility Of Shoulder And Hip Joints Of Students In Volleyball Compulsory Course By Different Stretching Methods

With the rapid development of computer and network information technology,the informatization of higher education in China has entered a new stage.The conventional teaching methods can no longer satisfy students’ interest in learning and are not conducive to guide students to study independently.In March 2015,the Ministry of Education issued the "ideas on strengthening the construction,application and management of open online courses in institutions of higher learning",which proposed that "to promote the application of open online courses,colleges and universities should be encouraged to make use of online learning,classroom teaching mixed with online learning and other forms of open online courses".In April 2016,UNESCO issued the concept framework and Implementation Guide for building mixed teaching ability in colleges and universities,which promoted the reform of mixed education,and mixed teaching,began to blossom everywhere in colleges and universities.Volleyball is an important part of the construction of physical education curriculum in colleges and universities.It is a group sport.It can cultivate students’ sense of social cooperation,enhance students’ physique,and improve students’ coordination,jumping ability and reaction ability.This study uses the methods of literature,questionnaire,logical analysis and mathematical statistics to carry out mixed teaching for the students who take public sports volleyball course in Liaocheng University.Through the WeChat public platform to build the online and offline hybrid teaching method of the public physical education volleyball course in colleges and universities,this paper analyzes and designs the volleyball course teaching,and seeks the effective way of the hybrid teaching for the volleyball course and even the physical education course teaching.In the experiment,the two classes of volleyball elective course in Liaocheng University were compared.The mixed teaching was used in the experimental class and the conventional teaching was used in the control class.The experiment lasted for 18 weeks,two hours a week,36 hours in total.The final results of the two classes were analyzed by SPSS 25.0 and excel worksheet,and the following conclusions were drawn:(1)Through the data comparison after the experiment,the volleyball technical level of the experimental group is significantly higher than that of the control group,which shows that the hybrid teaching based on WeChat is more effective than the traditional teaching.(2)Through the pre and posttest of the same questionnaire,the data statistics shows that the mixed teaching based on WeChat makes students more interested in volleyball technology learning,and the mixed learning has a positive effect on students’ learning.(3)The data before and after the experiment shows that the hybrid teaching based on Wechat and the traditional physical education classroom teaching have not significantly improved the quality of students.(4)The hybrid teaching based on WeChat strengthens the relationship between teachers and students,reduces the distance between teachers and students,and promotes the formation of good relationship between teachers and students.It improves the teaching effect of teachers.