Hi M..
I am going through the same thing with my daughter. I never would have thought that my daughter would have been in trouble at school, since she is so fun-loving and playful. She is very interested in being the center of attention and she is very openly affectionate with everyone she meets.
Sound like a really sweet kid, right? She is - however, that is not the type of personality that will excel in school! My daughter is smart - don't get me wrong, but she is constantly in trouble. From wanting to console the student who is crying because they got put in timeout, to interjecting when the teacher is reading a book. Behaiving like this would not be a problem at home, but it is a deal-breaker at school.
So here is what we did:
1. We put her in a private, Christian school who has a very strict policy on behavior. Crazy right? not really... Here's why: Her teacher LOVES her, and prays for her and with her everyday. When her teacher has to discipline her, she does it in a loving way, not an angry way. There are specific rules, that are well known throughout the classroom, and when you break the rules, you are no longer able to participate in the class.
2. We set up rules for the house that matched the rules for the classroom. A. You must obey Mommy and Daddy. B. You must respect the house. C. You must obey your teacher at all times. D. You must have a cheerful heart when you obey.
3. The teacher grades her everyday, from E to U. E - Excellent to U - Unacceptable. On the E days, we flip out! She gets a treat - she gets to overrule our dinner plans - and if she wants to go out to eat pizza or whatever, we do it! It is part of the positive re-inforcement. When she gets a U day... (which happens - she is still working on it) she comes home from school, changes into PJs, eats a peanut-butter and jelly sandwich, has milk, brushes her teeth, and goes to bed. She does not even do homework. She gets no interaction time with me, her father or her brother. If she is not asleep within a 1/2 hour, we take away a toy from her room, another 1/2 hour, another toy. We are clear in advance that these are the consequences of disobedience, and she understands. She didn't fight it... mainly because I told her this very calmly and simply. There was no strife or anger... Also, if she gets 3 U days in a row, she gets a (symbolic) spanking.
Seems like I am writing a book! :)
I have only scratched the surface, so have any questions, feel free to PM me.
I know I felt terrible when I got that call from the teacher - so I know exactly how you feel!
Good luck and God-bless.
S.