I would be very upset if that were my child and I would have gone to the principal or AP as you did. Keep an eye on it and see if there is any improvement. Prep is a difficult year - my sister has just started teaching a Prep/1 composite class after not doing so for 12 years & she forgets how dependent the children are at times and how much guidance they need. Perhaps it could be a teething issue for the teacher? I dunno but keep an eye on it. I hope your DD is ok.