The change in schools is so disrupting to children. I've been through it with each of mine - 2 of which have Aspergers and change is a huge trigger for them... I found it helped to talk about the new school - do some research with her about what buildings are where, where the loos are, what happens at lunchtime, where she goes in and comes out and we also gave them the chance to have friends over in the summer holidays or gave them the chance to meet up in town etc... Also make sure she's got contact numbers so they can all stay connected if they want to... Just because they are going to different schools it doesn't mean they can't stay in touch