How participants in an interaction define a situation will determine what behaviors they see as appropriate for that context (Goffman 1959; McHugh 1968). The college classroom is no exception. Students’ satisfaction with a course and their willingness to engage in certain activities will depend in part on how well the instructor’s definition of what is and ought to be happening in the classroom aligns with their own. An important part of the process is defining the roles, the expectations for behavior, of both the instructor and students. This posting looks at how students define their own and the instructor’s responsibilities in class and what impact this has on student learning.