"My practical experiences is the best asset I can offer you"
...'m a foreigner naturalized American who came here a the age of 17th, I did my pre-graduate education here, then I chose to go to my country to finish my professional education, but instead of getting a medical license to practice medicine here, since 1986 I decided to become teacher. I have taught in several colleges, and high schools. At present...
10 subjects, including astronomy