There is a lot of battering of American culture and American teachers on this listserv. I'm impressed with the sincere questions of so many ESL teachers in the U.S. who humble themselves for information. Foreigners can be overly critical of our educational system. I've studied abroad. I've had excellent instructors there and some poor ones.
American culture is distinct.
I'm privileged to know a lot of ESL instructors, born in this country, who humble themselves everyday to help immigrants become knowledgeable and comfortable here. Yes, we can profit from successful techniques developed by native foreign language instructors. There are times, however, when it seems to me that we, Americans, are being overly lectured about the foreign point of view. Nothing great is ever achieved without enthusiasm.