The term Graduate Student Instructor (GSI) is synonymous with Teaching Assistant (TA) at other universities. A GSI serves as an apprentice under the active supervision of the faculty member who is the Instructor of Record for the course. GSI appointments are for one academic year or less, and reappointment is not automatic. If you are appointed at half time, you can be expected to work 16—20 hours per week, during Instructional and examination periods, including time spent in preparation, classroom and laboratory teaching, office consultation, and reading student papers. At no time should a GSI continue to work beyond eight hours in a day, or forty hours in a week.

For more information:
GSI Appointments
GSI Duties at Haas School of Business

A Reader's primary duties involve the grading of homework assignments and examinations. Depending on the nature of the course and the instructor's preferences, reader duties may also include attendance at lectures, holding office hours, consultation with the instructor and/or GSI, and other course-related duties. Readers may not perform teaching duties.

For more information:
Reader Appointments