4_6 people. 1. Principal researcher: responsible for the design and production of some teaching plans and electronic teaching materials, data collection and storage, and providing the normal operation of the experimental environment such as hardware, software and network in the experiment.

2. Chief researcher: write the plan, preside over the research, assign the research tasks of researchers, undertake the design and production of some teaching plans and electronic teaching materials in the research, and contact the competent department of the project. Chief researcher: responsible for the design and production of some teaching plans and electronic teaching materials, collecting and keeping materials, collecting courseware and students' works.

3. Researchers: supervise and inspect the research process, provide human and material support, and participate in the research work.

4. Main researchers: overall management of the research process and participation in the research work.

5. Researchers: provide human and material support, participate in research work, and pay attention to research at any time.

6. Chief researcher: responsible for planning and arranging the research process, checking the implementation of research tasks and participating in research.