The course teaching arrangement is unreasonable. In many local universities, in recent years, there has been a large-scale expansion. There has been a serious loss of teacher-student ratio. Traditional teaching can not meet the actual needs of students. Studying the majority of local colleges and universities' main vocal course groups and groups cannot Carry out individualized teaching activities according to the actual situation of students. In addition, the complexity of vocal teaching itself. First of all, we need to realize that "vocal singing" requires high skills and the teaching content is extremely complicated. Therefore, students cannot effectively solve difficult problems in the classroom, and students can only learn and consolidate relevant knowledge in depth.