Each instructor will tell you what to do for his or her class. In general, you must call the instructor before the class to tell him or her that you will be absent and why you will be absent. Then you should ask for the assignment for the next class. It is essential that you prepare for the next class. Instructors often have an attendance policy which is written on their outline or syllabus.
Some instructors distinguish between excused and unexcused absences.
An excused absence is a note from your doctor saying that you were too ill to attend class. If you have any questions about your absences in a particular class, you should talk to your teacher. These are times during the day that the instructor of your class is available to help you, and to answer any questions for you. Instructors like students to come to their office hours because it shows that you are interested in their course and that you care about your learning. At EMU, the instructors really enjoy their students, and want to get to know them.