With the development of the Internet and the popularity of smart phones,it is becoming more and more serious that college students bow their heads and play mobile phones in class.It has become one of the important reasons for the decline of the quality of classroom teaching.Because of the different background of the times,modern college students have many ways and means to obtain information,and the traditional teaching methods can not meet the needs of the classroom.Therefore,it is urgent to reform.This paper analyzes the causes of the bow,points out the existing problems,and puts forward som...