The most basic feature of one-on-one tutoring is that one teacher specializes in tutoring one student, which is different from the large class form in which many students listen to one teacher in school. From the essence of education, only interaction can achieve effective educational effect, and one-on-one is the basic requirement of educational interaction. In the traditional form of large class, it is difficult to carry out interaction effectively. Because of this, in addition to the traditional school education classroom, major training institutions have vigorously promoted the one-on-one tutoring education and training model. People often say that the full name of one-on-one tutoring is one-on-one personalized tutoring.