The best material that will help you have some insight into teaching English in China is a 300 page free e-book on line from
www.middlekingdom.com It was written by a professor with a real doctorate degree and a man who currently owns a school.
Sections about what your actual job will be to navigating the medical system are covered, and everything in between. What I do is not so much education, but edutainment. The e-book will tell you more.
I hope this helps.