I would like to know how to become trained/certifed to teach ESL at the community college (high school?) level.

I have no education classes from college, and I have a BS, and two Masters degrees.

I am currently working full time for the DoD in Italy, and need to take the classes on-line or perhaps in Pisa, Italy.

I will be returning to Houston, Texas in about two years, and want to then be able to be hired by a local community college.

Suggestions/advice?

Cheers,
Marty