DSD is 11 and has been able to do those things for a long time. I think it would be a good idea to go to your GP and get a referral for a paediatrician and/or psychologist for assessment. It may be there are some strategies that can be advise that could help her learn these things best. You could also ask at school if they have any concerns. Has she been on school camp? Could she do them there? If so, then maybe its just a matter of behaviour management stuff?

is hard when you are not sure what is going on.