Speaking is very important in an interview. Textbooks will be given to you on the spot, and you will have about 10 minutes to prepare for the lecture. Please remember the speech process (everyone is a normal student and should have learned how to speak in college), or your manners should be good, which will leave a good impression on the judges.
There is also a professional basic skill. Like my art major, I took an examination of painting. Your math should also be a math-related professional knowledge, and it is also possible to test chalk and pens.
There is also a composition question like an exam. I remember that the last question I drew at that time was: If you were the head teacher, how would you create a good class atmosphere? Such a topic will also give you time to prepare, and then enter the examination room to explain your views. It depends on your luck, but unfortunately the topic is difficult to choose.
20 12 interview should be similar, I hope I can help you! Good luck! Please remember to dress neatly on the day of the interview!