So I just started teaching midway through this Spring term. I have 5 8th grade science classes, and am having a lot of trouble with very disruptive and disrespectful students. In each period are at least 4 students that simply refuse to listen to anything I have to say and openly welcome interventions like a call to parents or detention. I know some of this is due to the fact that I'm coming in mid-year, and that I'm their 3rd teacher so far this year. I know some of this behavior will quell with time, but I'm really struggling with solutions now. Administration is very supportive, but the most disruptive students don't seem to care about the AP glaring down at them. I teach science and going to try and do some fun and engaging labs to distract them. Anyone have some other pointers?