day. Every school day is divided into 20 mods of equal length. They are 20 minutes long with a 5 minute break between mods. Therefore, 2-mod classes are 45 minutes long, 3-mod classes are 70 minutes long, and 4-mod classes are 95 minutes long. Currently, there are no 5-mod classes, although there have been in years past. Between mods 10 and 11, there is a 35 minute break, the midday break, usually utilized for eating lunch.
Unlike conventional public high schools, a student does not have the same class schedule for every day. The days are instead divided into A, B, C, D, and Inquiry (I) days, each with their own class schedule. For the most part, A days are Mondays, B days are Tuesdays, C days are Thursdays, and D days are Fridays. IMSA students usually only attend class for four days per week, with most Wednesdays considered I days, days reserved for research and