Is it appropriate to wear sportswear for a teacher interview in a training institution in a few days?

In fact, teachers don't pay much attention to clothes, as long as they are generous and decent. You are applying for a teacher, not a company white-collar worker. The content of the application is different from that of the general company. Dressing is only one aspect. It is important that you introduce yourself generously, articulate and have a good command of Mandarin. Generally speaking, you will be asked to give a trial lecture. You should prepare the content of the trial lecture, for example, if you are talking about what primary school students want to learn, then your voice will not be the same as when you lecture to middle school students. My experience is more important.