Undergraduate teaching assistants

Undergraduate teaching assistants usually serve as true teacher aides to a class; they typically have taken the course with which they are assisting, often with the same professor, and have performed well in it. This case is less common for graduate teaching assistants, since many would have been undergraduates at other institutions. Unlike professors and GTAs, UTAs generally do not have a fixed salary but instead are paid by the hour, earn credit hours, or volunteer their time.