How does the university find out which classroom the teacher is in?

For universities, there are usually the following ways to know which classroom the teacher is teaching:

1. Inquire about the school's academic affairs office: You can contact the school's academic affairs office and provide the teacher's name or teacher's work number, and they will tell you which classroom the teacher is in.

2. Online educational administration system: Many universities have their own online educational administration system. You can log in to this system to inquire about the detailed information of related courses, including the teacher's name and classroom.

3. Contact the course assistant or class leader: The course assistant or class leader is generally familiar with the arrangement of related courses, and can ask them about the teacher's classroom information.

4. Electronic screen or bulletin board: Some universities have electronic screens or bulletin boards, which will display the teacher's classroom information of the day or this week. You can look at these screens or bulletin boards to get relevant information.

It should be noted that the situation of each university may be different, so you'd better know the relevant regulations of the school, or consult the relevant departments of the school to get an accurate search method. If none of the above methods can solve your problem, it is recommended to consult the relevant departments of the school or the educational administration department, and they will give you more accurate guidance.