You need to sort the other half out first, she's copying what adults do, screaming misbehaving etc.
A tanned arse is often the answer, but also put "off" punishements to a time of your choosing, that's what I had to do, just when he thought great we're going swimming etc, he has to stay at home, sounds cruel, but works and what harm does it do.
The first time I had to tap me lad on the legs I cried in the kitchen more than he did, felt so guilty and bad, but for thier own good, just my thoughts, best of luck.
If she is being singled out for praise in the classroom it can also do this, as she feels she can do no wrong, and teacher won't mind etc.
tabetha