We heard the same thing about our son in K. The teacher knew he was academically advanced, before he set foot in her class and was trying her best to accomodate his needs. We knew she knew and we weren't pushing for a grade skip, so when all the teacher could comment about was that our son was quiet or soft spoken or not speaking up in class. I got upset and defensive. My dh on the other hand didn't. He thanked her for her observation and asked her what we should do to help him and more importantly what was she doing to encourage him. It put the ball back in her court, so to speak. We all knew academically he wasn't learning anything. That he was basically there to gain confidance and independance and find his feet socially among peers and his teacher. From that moment on she started looking for ways to help him.
I don't know if what I wrote helps at all. I just remember how fustrated I was and to be honest I felt it was kind of a cop out, that she was grasping for something for him to work on. Dh took a more positive approach and thought "Finally something that she can do to teach him so K isn't a waste of time." Good Luck.
