anytime you can offer to help the teacher with anything (even cutting projects in the evenings if you can't make it into the classroom during the day) it can only help.
My DD's first grade teacher suggested exactly this, when I expressed my worry that whichever teacher she got following a grade skip might be someone who had a philosophical objection to skips.
We have relatively large class sizes (my DD's first grade class started out with 24 kids), and I found that it took longer than a week for the teacher to be able to assess each kid's individual skill level. Unless your DD is having problems in the classroom for whatever reason, waiting a little longer might give the teacher time to figure your DD out on her own.
