This can be done in several ways, and it greatly depends on what you see as the typical day at school. Most often the things everyone does at school is changed classes on a schedule and socialize wherever you can. Those would be your two roman numerals as the main topics. Under those topics would be subtopics. In other words, what does following a schedule look like. Then subtopics under when you get to socialize. It could look something like this:
I. Follow A Schedule
A. 7 Period Day
B. Switch from Class to Class
C. Eat lunch at the same time each day
II. Socializing
A. Cafeteria
B. Hallway
C. Classes