Where are you from? In the US, students go to 6 classes a day in high school. One of these classes is their "home" class, and the classroom is their "homeroom." Usually we would get announcements from the school in this class. Then the teacher who teaches in the "homeroom" is the "homeroom teacher" !! :)
Not me. Didn't have a homeroom anymore after junior high. In high school, we only had four classes a day. A & B days which would alternate, so we would have the same subject every two days. Personally, I liked it you could get more in depth but it did make for some extremely long classes if you weren't interested in the subject.