A.
Hi S.-
When you say that she is talking too much, do you mean that she is getting in trouble for not listening to the instructions to be quiet or listen to the teacher or something like that? She isn't getting into trouble for participating too much, right - she should never be in trouble for that.
I would get down to her level and explain that you are thrilled that she loves school and that she is having such a good time there. Then, I would remind her that she needs to practice her listening skill at school too, not just her talking skills. Remind her that her teacher is an adult that she needs to respect and obey. I would also ask the teacher to be sure that she is praising your daughter when she is listening quietly or following directions well. It could be that your daughter simply gets more attention when she acts up a little and the teacher needs to be sure to give her attention when she is doing well and not just when she is acting up. It could also be that she is bored with the curriculum - little kids don't have the patience to stick with stuff that they already know like adults do.
In short, I would talk to your daughter and praise her excitement and make sure that you and the teacher praise her listening skills too.
Take care!