Are the kids involved in the obedience lessons? Give the puppy a command that is opposite his action. He can't bite ankles if he's sitting. Put treats around the house to make them handy so when he starts, they can give him a command and turn it into an obedience session.
Seger vom Sitz von der Hose
Forever loved and missed.....Banshee
~The strength of one's opinion should not exceed their knowledge on the matter~