In the two stages of flipped classroom, before and after class, we make full use of the advantages of wechat public platform as a platform for communication and interaction between teachers and students, students and students, fully mobilize the initiative of teachers and students, and improve their interaction ability. In the classroom, teachers organize effective teaching activities to enable students to fully participate in them, improve their classroom input, and exercise their high-level thinking ability. Figure 1 shows the wechat based public platform.<br>
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