There are six regional K-12 accrediting associations in the United States. International schools in China are free to choose which of those six accrediting associations they will be accredited by. These international schools in China are all private schools by definition and seek accreditation from a regional association that provides them with the most hiring latitude.
What I am suggesting (although I don't know for a fact) is that--depending on the accrediting association--a headmaster may be able to hire you as a state and nationally certified school psychologist and then legitimately use you in the classroom on the strength of your previous K-12 teaching experience. I am not familiar with the specific criteria of these regional accrediting associations. I can't advise you with any certainty but I think it's possible you could be very marketable.
What I suggest you do, when you're ready, is send your résumé to Joseph Azmeh, the headmaster of TEDA International School
in Tianjin. Tell him that Dr. Greg, the American professor from Guangzhou who visited his school in October 2010, suggested that you write him personally to solicit his feedback on whether he or other international schools in China could hire you as a teacher. I have a hunch you will be pleasantly surprised.
As for China TEFL, it is an unregulated and unaccredited industry fueled by political and financial interests only. Consequently, the experience that you acquire as a China EFL teacher is not applicable or transferable when seeking teaching employment back in the States. In essence, as a professional educator, you would be creating one giant black hole in your curriculum vitae.
If you were a registered nurse back home and you spent two years working as a visiting healthcare professional at a traditional Chinese medicine (TCM) "medical school," learning how to brew herbal teas to treat common ailments, you could not possibly expect accredited American hospitals to recognize that experience as professionally valid or even desirable. In fact, it would seriously work against you in the minds of most head nurses and other hospital administrators.
As a licensed school psychologist with six years of private school teaching experience, I would urge you to abandon any thoughts you have of teaching oral English in mainland China unless you can afford to treat that time as a vacation from your career.
In addition, once you step foot into the China EFL industry, as I alluded to above, you will be exposing yourself to prejudice and discrimination as a person of Filipino descent. My wife is a Filipino, a certified elementary school teacher, and faced incredible hiring discrimination while we lived in mainland China. With a master's degree in school psychology and six years of teaching experience, there is absolutely no reason why you should subject yourself to that kind of abuse.
Please, stay away from the China EFL industry. It's not for you. If you haven't already, spend some time reading through our comprehensive Foreign Teachers Guide
. It will be a real eye-opener for you.
Best of luck.