Graduate student support is generally in the form of research or teaching assistantships (RAs or TAs), although University fellowships are also available. Research assistantships generally do not require the performance of any work beyond the research requirements of the degree. However, research assistants who receive departmental support for tuition waivers may be required to perform teaching assistant duties (TA) for classes. In addition, students will have to satisfy the teaching requirements of the degree (TA for one undergraduate laboratory course). Teaching assistantship duties include grading homework and/or exams, conducting problem-solving recitation sections and having office hours for answering student questions. Specific duties are assigned by the course instructor, but will typically require less than ten (10) hours per week.