If I am a teacher, how can I solve the students' confusion during the epidemic?

It can be solved through online meetings.

Through the online conference live broadcast platform, you can communicate with students face to face, thus solving problems. Face to face communication is the best way to solve problems.

Questionnaire survey refers to the method of collecting data by making a detailed and thorough questionnaire and asking the respondents to make corresponding answers. The so-called questionnaire is a set of questions related to the research goal, or a form of questions compiled for investigation, also known as questionnaire. It is a common tool for people to collect information in social investigation and research activities. With the help of this tool, researchers accurately and concretely measure the process of social activities, and use sociological statistical methods to describe and analyze the quantity in order to obtain the required survey data.