Jenny,
Illness (or similar legitimate reasons for absences) are always a challenging scheduling event in college classes. Good planning by the instructor can help the individual called in to substitute. When daily lesson plans, handouts, PPT slides, worksheets, quizzes or tests are prepared in advance, it does make for a smoother experience for all, especially the students who usually grow accustomed to their own instructors ways, methods, and resources.
Barry Westling
