I'm a first year teacher and just finished up my first week of teaching. I'm concerned about my two afternoon classes of 8th grade students. Both of theses classes are large (one has 31 students and the other has 28) and they are also both very rowdy (obnoxiously so). I also have a very small classroom, which only further compounds the problem. I have heard that their ELA teacher from last year kind of let them get away with just about anything (including letting the girls bring curling irons in the classroom to do their hair) Anyway, I have established the rules, I have bell work, but I sorta feel like I am treading water and that I spend most of the class period correcting behaviors and raising my voice. I'm hoping that if I stay firm that the behavior will improve, but I hate spending so much of the class period raising my voice and getting on to them...any suggestions?