-->A better life? are you joking? The salary for a chinese there is less than US$1500/month, right? then $700/rent, $5/lunch, $100/coat, ... , traveling is at his expense ...
Here you get CNY3000 - 8000/month, right? then Y0/rent, Y5/lunch, Y100/coat, ... , traveling is reimbursed ...
-->Whose life is better?

Sorry, but an ESL teaching salary is very low even to live in China. Why? Because we pay foreigner's prices NOT Chinese prices. Second, not all schools give free apartments and certainly NOT all schools pay for transportation.

For an American grad program, yes you would get about $18,000 per year. But, after that, you could apply for US citizenship. Can we get that treatment in China??? NO. FREE education in China in a good university and have enough money to live. NO.

-->What I want is some experience of teaching math + chinese in a Western high school.

No problem. First, to teach ANY mathematics in an American high school, you need a REAL teaching degree, or one year training past your baccalaureate degree for science degree holders. That means you would need to go to a teacher's college. Unlike what you may have seen from ESL teachers, in America, to teach in public schools you need to have demonstrated knowledge in child psychology and teaching methods.

Yes, to teach ESL in China you need only be a native English speaker with a pulse; however, isn't teaching ESL in China just being a parrot?? You use your Chinese teachers for the "REAL" teaching of grammar and such and then you get the ESL parrots to squawk to their students.

As for teaching Mandarin in America, well you may have to compete for a job with the 10 million other Chinese that ARE American citizens and some of whom DO have a teaching degree from an American university.

-->Bilingual teaching is sought after here, if you can speak mandarin it's not difficult to find job of teaching math in a school here.

Ditto, if you can fluently write and speak English, and have a teaching degree, you can teach here too.

-->I taught calculus 10 years ago, but now too many teachers for calculus, and I can't ask them to stop and let you in, sorry. Hopefully it's easy for you to adapt, ok?

My point exactly, we have enough unemployed scientists and engineers that are substitute teachers and many of whom had to take a BIG pay cut and teach high school. So, like you said, there are too many professionals in America: YOU'LL HAVE TO ADAPT, OK??

-->Really??? Have they got better lives in America? I'm sorry for the jobless American scientists.

Why are you Chinese like so many other foreigners and think ALL Americans have a better life. I lived in America and many times I didn't even have enough money for a doctor or health insurance!! What you see in the movies is nothing but Hollywood propaganda. We DON'T all live in big houses and drive nice cars.

In fact, many Americans are a paycheck away from bankruptcy and 10 percent of American children have to skip a meal or two and go hungry from time to time. When my father was a university student and I was just a child, I had to have used clothes from other people and live in an apartment where the cockroaches saw me as an easy dinner. Tell me, is that better than China?? Please spare me that dribble about the poor Chinese.

--> I DON'T want to be an "economic migrant", that's shameful!

Funny, most immigrants come to America looking for the streets paved in gold. So I guess most immigrants, Chinese too, are just shameful.

Listen, sorry for being so blunt but times are tough in the world these days. My job was outsourced to India and I know many engineers in manufacturing that lost jobs to China. So times are tough...that's it.

Best of luck and no hard feelings. It's just a reality check that's all. Good luck teaching math in China and I do hope that you can open a successful western middle/high school in the future..in China.