T.G.
Hi E.! I read your other responses and I have a bonus for you! My daughter did the exact same thing. I have 3 children (10, 7 & 2). When my oldest was about 18 months old, she was bitten at daycare by another child who wanted the toy she had. She quickly learned that it was an effective way to get what she wanted. The daycare called me about 4 times to tell me she had bitten other children and that I needed to take care of this. The last time they called, I had to come get her. She had bitten twice in one hour. I was in tears!! How could I have a child like this?! Each time they called, I tried some different "remedy" for biting. Nothing worked. The last time, I picked her up from daycare and took her home. She asked why I was crying (in her own 18 month old way - LOL!). I told her I was sad because she was biting other kids. She had the most puzzled look on her face. That got me thinking. She didn't remember that she had done it! The next morning, I went to the daycare to meet with the director (this was required before she could come back). I had the director bring in her teacher and I told them both that this was NOT MY PROBLEM! Children that young don't remember later what they did earlier in the day. What was happening was this...she would bite in the morning, I would pick her up around 5, and then discipline her for biting. She had NO CLUE what I was disciplining her for! You can't discipline a child when they don't know what you are disciplining about. The discipline must be administered at the time the undesired behavior happens. My daughter was not biting at home. Only at daycare. Thus, it was the teacher's problem to pay more attention to her and tell her no or give her a time out when it happened. The director of the daycare center agreed with my argument. The teacher then began paying more attention to what my daughter was doing. She learned to tell when my daughter was getting ready to bite and would stop her before it happened or would put her in time out immediately after if she didn't catch her in time. She bit about 3 more times after that meeting and then it was over.
My point is this....if your child is only biting at daycare...it's NOT YOUR PROBLEM TO RESOLVE! The teacher needs to be the one taking care of it at the time it happens. Your child is too young to remember what you are disciplining him for hours later. Talk to his teacher and explain this to her/him. Get the teachers help to keep a closer eye on him for a week or so and try to intervene as soon as she spots him doing it. I think you'll find the problem goes away pretty quickly. Of course, if your teacher isn't willing to work on this with you, there isn't much you can do. Your son will never understand what he did wrong hours later when you are able to "take care of it".
Best of luck!
T.