In general, there is no cloud platf

In general, there is no cloud platform to track the progress of students'self study, no learning terminals such as mobile phones and tablets, limited access to computers and networks at home, and no Wi fi in schools, and the use of flow to watch the micro-class is not practical under this series of realities, choose to complete the whole self-study process in the computer room in line with the actual situation of most schools. Pre-class teachers prepare micro-video for students, mainly knowledge points to explain, in the micro-video can include the introduction of situations, typical examples, animation show, concept of content, in view of the principle of streamlining the design of micro-video, micro video does not have to include all the links, which links include specific teaching content depends. The study plan is used to sort out the context of knowledge, guide students to study, stimulate students to think and explore, students can decide whether or not to use the teaching materials, the knowledge in the teaching materials is more systematic and comprehensive, and the self-test questions are used to test students'learning situation, inquiry questions are also set in the self-examination questions for students to think about. The relationship between pre-class materials can be summarized as follows: study plan is the "route" of learning, micro-video provides support for students to study on this "route" , and students can turn to micro-video if they have doubts about studying on this "route" , the function of the textbook is similar to the micro-lesson, but each has its own characteristics, micro-video vivid image, the textbook system is comprehensive, which means to use depends on the students themselves. The self-test card tests the effect of the whole self-study process and feedback it to the teacher in time. The class is divided into situational introduction, knowledge consolidation and inquiry activities, classroom teachers lead into the classroom, the creation of the situation can be introduced into the actual problems or problems and questions in the preview process. In view of the fact that the whole teaching process is carried out within the framework of the flipped classroom, students have already taught themselves knowledge points, and when the effect of the students'self-study is not good and the key knowledge points are not mastered, in order to ensure the smooth progress of the inquiry activities, some knowledge which has not been grasped before class should be consolidated and strengthened. Finally, it is to carry out research, this section should occupy most of the time in the course.