DC, I have no idea how you kept your schedule straight. That bubble thing sounds completely confusing.
It really was. It would be like Day 3, Bubble 1. Totally whacky.
Also, we didn't get breaks. We might have a study period where we didn't have class. We were supposed to use it to work on homework/studying. I only ever had 1 regularly scheduled study period in my class schedule. That was my senior year, because I was doing an internship program outside of the school. So I had one less "class" than other people.