1. Maximize the sharing of famous teacher resources. The ultimate goal of double-qualified classroom is to realize the sharing of famous teachers' resources and solve the problem of balanced distribution of educational resources in various places. Online teacher teaching and offline teacher answering and counseling can maximize the use of resources.

2. The class is rich in content and interactive. As a proven remote real-time live interactive teaching system, the double-teacher classroom is more acceptable to students than the traditional live recording and broadcasting classroom without interactive mode.

3. Strong dependence on Internet technology. Double-qualified classroom needs to adopt certain internet technology. Without the support of technology, it is impossible to realize remote real-time live interaction, and the double-teacher classroom will become empty talk.

4. The learning effect needs to be tested. The original intention of the double-qualified classroom should be to create a better learning experience environment for students through this new classroom, so as to better accept classroom knowledge and achieve the effect of internalization.

I hope my answer can help you, and I hope it will be adopted. Thank you!