I have two boys in my year 2 class who play together constantly. They have done since Reception, and although it is great to have best friends, it's a little too much at times, as they gang up a lot, exclude others and generally one is having negative effects on the others behavior. Recently said boys have been a pain to other children by being to boisterous and jumping on others and this is obviously unacceptable. Problem is, I want to separate them on the playground so that they don't create these problems and I can't be out there making sure they don't play together all the time. What can I do to solve this problem? I have other children who have a mentality that if they can't play with their best friend they can't play with anyone, even though we have done lots about working with others.