We have four 1st grade teachers and four 2nd grade teachers at my site. During a collaboration meeting today, we (the 2nd grade team) were discussing (well...venting) about the fact that students who come from a certain teacher are often our lowest students and always seem lost/confused (as though they've never heard of the concepts we're teaching). This isn't an isolated incident. This teacher consistently has the lowest scoring 1st grade class (our scores are not private) and her kids are often seen running through the hallways, yelling while eating at their assigned table in the cafeteria, and behaving pretty poorly overall. This teacher has been teaching 1st grade for over 25 years. Obviously, none of us really know what happens behind closed doors (as far as her teaching goes). We have a new principal this year and my colleagues were thinking of making her aware of our concerns about the students who exit this particular teacher's class each year. I want to stay out of this whole thing, but at the same time, my grade-level team keeps saying that we need to stick together or the children will continue to suffer. I don't know what I'd even say to my principal. Should I just let her find out for herself about the things that are/aren't being taught in this particular classroom? Do I mind my own business and focus on getting these kids caught up?