My 5.5 year old son is a real talker. For whatever reason, he knows a surprising amount about a number of subjects. He is finishing kindergarten and has had a great year, but the teacher does say he has a problem with "participating" too much in class. When the teacher or another child is talking about something he knows about, he can't help but start talking about it too. He doesn't do it in a "know-it-all" way, he is trying to be helpful, and his teacher agrees this is a totally age-appropriate impulse control thing. But I understand that this can be disruptive in school and eventually could cause social problems. We were at the kids museum today and twice he overheard another family talking about something and involved himself in their conversation. I pointed out to him that he was interrupting, that they were not talking to him. Is that the best way to handle this? I love his curiousity and enthusiasm; I'd like to teach him a way to channel these without just shutting down. Any ideas?