Toddlers at preschool biting and not sharing
My almost 29 month old has a lot of trouble sharing with his classmates in day care and when a kid takes away the toys he is playing with, he tries to bite them. I talk to him everyday that sharing is important and that the toys are for everyone and he needs to remember to share. He has been the only child until 5 months ago that we had our second son a few days before he turned two. His teachers tell me that his behavior is due to his baby brother but he loves his brother so much and never argues for attention since I try to give them equal time. It is harder to focus on just him since I breastfeed his brother and I barely have any energy with a toddler and a baby. Are there any recommendations on teaching a two year old to share?
My other concern is that the kids are biting him (HARD!) and today he came home with deep scratches in his face due to sharing. It has not been the first time, and he even has marks from the very first time they scratched his face just a few days before picture day. I've spoken to the teachers about this, and they tell me that they have spoken to the parents but they don't cut the child's nails. I just don't know what to do! I can only teach MY son to not do these things, but what happens when they do that to him? The school tries to keep the names of the children confidential since they are children, but I've even spoken to the center director and nothing has changed.
I know my son is not a bully, he just refuses to share which I want to find a way to fix so that hopefully the biting and scratching towards my son stop. HELP!