Dd getting aggresive. What do I do?

[Blossomhill]

Just lately if dd (language/communication disorder - 6 yrs) doesn't get her own way she will pinch or scratch your hand (if you try and taker her away from what she wants to do).
Tonight picked her up from After school club and she had scratched one of the workers on her arm for telling her to take a stone out of her mouth. I know she does it out of frustration but we have never had this kind of behaviour before (aggressive).

What do I do. Dd just seems to be getting worse (the behaviour).

Any suggestions for pros I need to see with the eating things (has been ongoing and nothing I do helps) and the aggression please?
Thanks BH xxx

Bethron - Thanks, it's so hard isn't it . You can tell them until you are blue in the face but they just don't "get it".
With dd it's the impulsiveness that makes her do it I think.

Would dd be able to understand a simple social story? Another option might be to try to teach her some other way of venting her anger/frustration. Not easy I know. Ds2 shows his anger and frustration by throwing anything he can get his hands on so atm I'm working on giving him beanbags and targets to use instead. It's early days yet though.

Does it make a difference how the staff ask her to do/not do things? Ds1 is generally quite eager to please but if someone speaks sharply to him (even unintentionally) he can fly into a rage.

Has dd's usual routine changed in any way? Is she feeling more tired than usual? Tiredness makes a huge difference to ds1 and ds2's behaviour. They turn into mini-demons.