1. Theme determination stage: first, students report problems found in practice; Second, discuss and analyze problems and turn them into topics; Third, students are naturally grouped according to the topics they are interested in;
2. Planning stage of comprehensive practical activities: first, students plan activities; Second, students will report and exchange their plans in the whole class; Third, students discuss the plan of each group; Fourth, students should improve the plan according to the discussion;
3. Phased communication courses during the implementation of the activity: First, students report the activity process in groups; Second, the interaction between teachers and students, put forward the difficulties encountered in the process of activities; Third, guide students to discover the generated theme;
4. Summary and exchange stage of comprehensive practical activities: first, why choose this question for research? Second, how to plan the event after choosing this theme? Third, please give an example of what you learned most during the activity?