This is totally my philosophy too! I do believe in rewards & incentives in the classroom. I also believe in intrinsic motivation but the reality is 3rd graders are still learning what that is. In the meantime, I will reward the behavior that warrants it and deal with the behavior that doesn't. We always, as a classroom community, hope for improvement and a better day tomorrow. We congratulate each other on progress made, and I think that helps to build community as well....seeing a member of the community make a mistake and learn from it.