Students who are admitted into the program serve as full time teaching assistants (TA’s) during each of the four semesters. This involves a fifteen-hour commitment to TA duties each week. In exchange, the student receives full tuition, a stipend to cover basic living expenses, and health insurance. Summer instructorships, TA-ships, and research assistantships are available but are not guaranteed. Serving as a TA is an integral part of the program. To remain in good standing in the program, students have to be among the top TAs in their assigned courses. TA performance is evaluated at the end of each semester.