Compared with the traditional teaching mode, it is more difficult to change students' passive learning into active learning, to make teachers prepare lessons (thoroughly understand textbooks) into both preparing lessons and "preparing lessons", and to let students accept new knowledge in preview, consolidate new knowledge in discussion and digest new knowledge in communication. This should be affirmed. However, only learning the form of "life classroom" will inevitably become a "flower shelf" and it is useless. It is necessary for students to cooperate and live on campus. It is difficult for teachers to consider the problems in students' preview when studying teaching plans. This should form a habit. Parents don't cooperate, and they can't. After all, this form of learning subverts the style of "school" and the "authority" of teachers, classrooms and textbooks. Social recognition takes time. Small-scale reform may be effective, and large-scale promotion needs to be cautious. Moreover, the inertia of "poor students" is hidden in the "heated" discussion, and the final exam will inevitably be exposed, which needs attention.