keep your spirits up in a situation like this! My dd(turning 4 in Oct.) went through a "physical stage" where she was learning how to cope with her emotions and was using tactile coping mechanisims (some children bite, kick, scream, hit) on me as well as other adults and children. It took a little time, but I read an article about teaching your child how to cope with their feelings as they don't really know what is appropriate and what is not. I spoke with my dd (2 at the time) and told her that it was 'ok' to get upset, angry, hurt, frustrated, etc...but that she needed to SAY with her WORDS what is upsetting her/bothering her. When she was reacting negatively, I had to stop and remind her that she needed to use WORDS not kicking, biting (or whatever was happening). After approx. a week of this, she started calming down because (I believe) she was learning a positive way to cope with her feelings. I have to say that my child is normally a very RESERVED child, she was just needing guidance in knowing the best way to express her feelings.
She used to require prompting to "use her words", but now she is GREAT! We are moving on to using our "listening ears

" so mommy doesn't have to repeat herself (too often

).
I don't feel that "taking away" or "punishing" negative behavior in this instance is appropriate. It seems like he needs to learn to express his feelings in a different (more socially appropriate) way. When he expresses himself appropriately, reward him with small things he would appreciate...praise, extra story at bedtime did the trick for me.
DON'T GIVE UP!!!! Take the time, talk with him, let his teacher know what you are doing (they will appreciate your efforts) and they may be able to apply the same technique of encouraging him to "use his words". He will soon be the happy well adjusted child you know he can be!
It was not easy to keep my cool sometimes when she was acting negatively, but staying calm and focused does really help to bring the child into a calmer state so that they CAN communicate more effectively.
I just know that if it worked for me, it can possibly work for you too!
