... behaviour issues because she finished her work early and then tried to talk to other kids which distracted them from completing their work ... needs to learn to not talk when it is not the appropriate time for talking but she is BORED OUT OF HER SKULL!
We have had the opposite problem... our DD has also been bored out of her skull, but exerted so much self-control during the day that she got great behavior marks, everyone said she was doing just fine in school, and then she'd get home and detonate. The stress and emotional damage this was causing her each day was phenomenal.