I already had a profession as a teacher, but I went ahead anyway and sent an email off to the program, explaining that I was a teacher of the deaf, wondering if I could take a few classes with them and perhaps share their lessons with my students.
Ya tenía una profesión como profesor, pero seguí adelante y envié  un correo electrónico al programa, explicando que era un profesor para sordos, preguntando si podía ir a algunas clases con ellos y quizá compartir sus lecciones con mis estudiantes.