i'm obviously not a teacher, but from being a TA i can safely say yes. some of it is legit stuff all teachers need to have a heads up about, but some is simply gossip.i wouldn't say they gossip about kids lives since its private, unless its a situation teachers should know about and have a heads up for. i would say for sure they gossip about how they act in class though. just the other day a teacher came in to talk about this "awful" kid in her class who pulls hair, harasses the girls, is completely defiant, etc.