There are many kinds of teacher qualification certificates now. Beijing Dance Academy has ballet exam, China dance exam, national dance exam and dancers association exam. You can look it up online and see which one you want. Basically, anyone with a certain dance foundation can take the exam. You'd better go to Beijing to study and recognize it.

Generally, it is a short-term training, and you can learn Level 3 in a week or so, depending on the arrangement of teaching points. Tuition fees vary, about 400 to 500.