Some of our classes recommend that students gather materials before each session to enable them to fully participate in the session's activities. In addition, some instructors may ask that you have materials ready for their classes.
If that is the case, this information will be either emailed out by the instructor or provided on the first day of class. (Varsity Tutors customer support is unable to provide this information.) If the instructor asks that you have materials, and you do not have any, you can still join in the class and observe.