I've never taught or worked professionally in a school environment. The most current information about TIE can be found on this website. TIE is a one-year master's program.
Most students complete the program in one year.
Others attend part-time and graduate in two years. At present, TIE does not offer a doctoral program, although there are a number of graduate students in all three areas of the school pursuing doctoral studies related to technology. Approximately 20 percent of TIE students apply to attend part-time. Usually, these students take two courses each semester, completing the program in four semesters. Students eager to acquire their graduate degree usually choose the intensity of the full-time program.