Should i give my high school's drama class a try?

I'm not entirely sure what they do in it all i'm sure about is they have class in our auditorium and when the band goes in their to practice at certain times of the anno they just sit around most of the period i'm planning to take drama somewhere someday i'm just curious what they do in it. I've read that a lot of actors especially older movie actors got their start threw theater so it makes me interested whether i'd want to take it at my school successivo year. What do they do at your school?