C.S.
What everyone says about the "timeout chair" works really well, and the one minute per year is also appropriate. One thing to remember, she won't like it the first few times, and may also get into power struggles once she realizes that you won't accept this behavior. For my boys, the timer didn't start until they stopped throwing their temper tantrum. Once the timer dings, remember to give her a hug. It lets her know that you still love her, even though you don't always like her behavior. If she won't sit still in the chair (she's too rambuncious), you may want to try having her stand against the wall, with her hands on her head so she can't figet, but let her see everyone. This worked for my youngest. He is now 10, but is severe ADHD. Even at that young of an age, he couldn't sit for even a minute per year. But when he is given time to calm down, where he can't figet, but could still see what was going on around him, he would calm right down, and be much better afterwards.