You must be registered as an Institute participant to attend or audit any course; however, Faculty and Participants are certainly welcome to audit courses for which they have not registered if the faculty teaching the course agrees and there are seats available. Participants registered for the classes will have priority, both in terms of space in the class and instructor office hour time outside of class. We’ve had some specific questions about courses that are full. In our field methods class, and in classes taught in computer classrooms, the limited resources involved make it impossible for auditors to join the classes. In other classes that have course size limits, you may talk with the instructor about sitting in on the classes.