Make sure you open them all up. Because some are different. I use the one with the hours, so I can "schedule" in my classes, and "schedule" in my assignments. This thing is my BIBLE.
As you can see from my planner, I use highlighters and post its in mine. Each class is a color, and all the information for that class goes on that post it, or gets hi-lighted in that color. One semester, I took 18 credits AND worked full time. It was the only way to even know what day it was, and what class I needed to go to. LOL