Research on Fuzzy Comprehensive Evaluation of University Public Physical Education Classroom Teaching Quality Based on Grey System Theory

College physical education classroom, as an important subject course for training competitive talents in colleges and universities, shoulders the special mission given by the times and society and the specific needs of students' physical and mental development, so curriculum reform is imperative. How to comprehensively evaluate physical education teaching quality is related to discipline construction, reform and development. Therefore, adopting scientific and reasonable multi-level evaluation is an effective way to standardize the evaluation of physical education teaching quality. Teaching strategy is the research hotspot of current teaching theory, the guiding ideology and soul of implementing teaching, and occupies an important position in teaching theory. Grey teaching strategy is a brand-new teaching strategy based on grey system theory and applied. In this paper, the multi-level comprehensive evaluation method of fuzzy mathematics is used to study the quality of physical education classroom teaching. Based on the grey system theory, a multi-level and multi-index evaluation index system of classroom teaching quality is designed, and a multi-evaluation model is established.