OMG! They Are Playing NICELY!

enjoy it while it lasts:)

Maybe preschool is teaching how to interact with other kids. YEH!!! that is awesome. :)

that's awesome! The preschool is doing its job then! That age is a social learning environment. The teachers there get the opportunity to see them interact with each other and at every situation are modeling for them how to get along with others and social graces. You should definitely reinforce it by praising him a lot when you catch him being nice, just tell him I love the way you're playing nicely and getting along with your brother you should be proud of yourself! etc :)

Praise it, praise it!!!

Be sure to compliment your son's preschool teachers! It is wonderful that they have had such an impact in only a few weeks.

I was in a very similar situation with my now 3-1/2 yr. old son. He had been going to a Children's Day Out program for over a year and when I switched him to his current preschool he had a dramatic change -- much less bullying and aggression, lots more sharing. It showed me that the teachers have high expectations for him. I talked to the teachers, told them that I noticed and appreciated their efforts, and I asked them to give me tips on the phrases and terms they used, so that I could continue their methods at home.

Be sure to give your son LOTS of praise when he shares, etc... High fives, tell him he's nice, hug him, tell him his little brother likes it when he shares with him, etc...

Maybe he is just realizing how nice it is to play with someone.Even at home. Ah enjoy...

Yup...I have! Pre-school teaches socialization skills and helps to refine them as your child grows. They have to share and there is no room for bullying and acting up when it comes to school of any kind. Seems like your son was ready to learn some socialization skills and he is using them nicely. Reward him often for his efforts and don't let them go unnoticed. Also....this must be a good pre-school classroom that he's in. Well managed and the teacher must have good control over the class for sure. Tell her...reward her too. I used to teach pre-school and kindergarten and parents used to tell me that I was a saint! I never really thought of that until I changed careers and stopped working with kids and then it hit me....boom....it did take a lot to manage the kids and the class all the time. LOL! I'm glad that your son is doing so well. Praise the good behavior and tell him what a great example he is for his little brother and other kids as well. Yaaaayyy!