Yes, parents, admin, and teachers -the whole staff - need to be in on this one. Use some love and logic. "Gee, I am so sorry, you can't go out to recess because children who run off from school have to sit inside with the teacher and can't go play." Then she must be totally ignored - NO SPECIAL ATTENTION! If she is always one-on-one with an adult, NO SPECIAL ATTENTION. If she throws a tantrum again, have a plan to quickly line up the children and leave the room. Have another adult ready to stand outside the classroom door so the child is safe, but when I did this, the tantrums ended instantly. No audience, no tantrum! Ha! Get counselor involved, and parents must enforce painful consequences at home - such as, "Oh I am so sad honey, but little girls who run off and scare their teacher, they don't get to watch any tv, no computer, no blah-blah. You will get all those privileges back when you show us you can stay at school and not make people scared." "Oh yes, your best friend/classmate's birthday is Saturday. That is so sad! Little girls who run off from school don't get to go to parties. It is too scary for everyone. You will get to go to parties/swimming/skating once we are sure you will obey the rules and always stay with your adult. That's so sad!" You get the drift. This is totally unacceptable! One five year old has the whole school's attention! Who is running this thing anyway? I agree completely - one teacher cannot be left in charge with this child - what about all the other crazy, but normal, things five year olds do? I had one in my class 2 days ago and just happened to look up as he was sticking a staple into the electrical outlet! sheesh. Hope they get everyone on the same team and nip this right in the bud. I have had runners before and it takes years off your life, let me tell you.