I also have a class that I have no clue what it is "SERVICE LEARNING"
It's learning through providing a service; basically community service that applies something from the class.
For example, one of my web design classes had a service learning project of building or improving a website for a non-profit.
If you don't know who you need to talk to, then ask? In my school we had a counsel office, and all the students were split between three counselors based on last name.
On a related note:
In my high school, the standard science classes people take are physical science, biology, and chemistry. Most people take these, but there are a bunch of other options that people can choose. I choose to take a geology class and an astronomy class instead of the chemistry class. Someone, without talking to me, changed my entire schedule around, dropping two random classes and giving me chemistry. I managed to get it fixed, but I had to take several classes through the year that I had no interest in.