Since the "Visa for teachers" post was heading into another direction into more academic ideas and philosophies why not open one just for that.

Correcting with care:
I mentioned that directly correcting a student (to be fair I have to say after the age they become aware of themselves) is not a less desirable thing and I will justify short and simple.

It's not desirable because it may frustrate and expose the student in front of the class. I recommend that letting the student selfcorrect with guidance, or other studetns try to help and find the mistake together. At the very least, make it a happy and funny experience for the students to correct themselves, than the evil teacher pointing out what is wrong. Plus it has a team effort and self correcting is the best correction since it's selfdirected. Especially in China were making mistakes might be taken as a weakness, I thought it may be worth a thought.

I have good experience with it, and I would like to know what you think.