Consider getting further training through a graduate school program. Teacher education programs are changing rapidly, so it is wise to talk to a lot of folks and investigate your options widely. If the idea of being in school doesn't appeal to you, there are an increasing
number of graduate programs that emphasize hands on teaching.
Many universities offer graduate programs leading to elementary and secondary certification. Peterson's on-line guide to higher education institutions lists education graduate degree programs in 37 areas from
over 1,000 U.S. institutions. Areas of specialization include topics such as Bilingual and ESL Teacher Education. There are many other on-line guides that you can use to identify potential programs.