My DS was in yr2 and I was always being called in to discuss his behaviour (biting, temper). Again excellent teachers, but I had to get help. Had a meeting with the Head and asked for an IEP(Individual Education Plan).
He then saw the Educational Phycologist, Speech Threapist, Clinical Phychiatrist. All came back that he was intellegent, articulate, and non-diagnosable - it was thought he was Aspergers. The Clinical Phyc said it was probably speech delay that contributed to his lack development of friendships and that he is a very young boy, ie July baby, about 6 month behind his peers in maturity.
When he went into Yr3 last Sept it was like he was a changed child. Only one instance of biting in the last 12 months. They have allowed him space to calm down (he was never violent just shouted and screamed when people wouldn't listen to him.
Since Easter he has seen the school counsoller about Anger Management - loves the sessions, which have helped him in class team work, always prefered to do things on his own.
Also DH and I are going on a Parenting course to help us be more consistant in our approach. (I'm to soft and DH to hard so we end up arguing which in term wasn't good for DS).
With the right help things do get better.