The good news is that as the leader in the class room you can effect change in how the kids influence each other socially. Because you know that social skills are being learned all the time around you as you teach, you also have the opportunity to create activities and opportunities for discussion that can change that social behavior for the better. You can literally teach those kids to get along and to treat each other in a civil fashion and do so without alarming the kids or losing any teaching time that you need to complete your academic goals.
One great way to begin to move the kids toward positive social models is to move from the traditional “teacher talks to big class” approach to teaching to one that uses small group activity, teamwork and competition to not only make learning a lot more fun but to encourage good social development that will help the kids develop socially as well as academically.
You should not feel that by trying to teach the kids good social skills you are abandoning your core principals as an educator. If you can also teach the kids good social skills while you have them in your class, that time could turn out to be the most valuable thing you have to offer your students. When you see those positive social values begin to change lives in your young students you will get a unique form of pride because it was you that made it happen.