You can draw a picture of the bully while you tell a story. (Start drawing a face)
There once was a boy who was the school bully named....
(Finish with mad eyebrows)
He would push kids around and was not nice at all. A lot of kids at the school were afraid of him and were always looking around to see where he was.
(have the eyes look around left to right) The kids will start screaming and pointing at the board.
(do the look but don't see bit with it a few times) No, that's not really the bully, that's just a drawing of him....
(Finally he stops moving and you continue to talk) Sometimes the bully would stop a kid and talk really mean to them....
Board - "YEAH!" (have the mouth move and say something rude like yeah, or nananana)
(kids will come out of their seats screaming and pointing) You react to with a jump.
Now you can interact with the board and present some of the pointers to help the kids. Something like....
Are you really Butch the Bully? YEAH
Well the kids in this school are learning something today about you. BLAH BLAH BLAH....WHAT?
We are learning that they don't have to be bullied around by you anymore.... etc.
(I'm not an educator but there are steps that kids should learn to protect themselves...
# Avoid areas where no teachers are around
# Make sure you aren't alone
# Don't bring expensive things or lots of money to school
# Sit with a group of friends at lunch
# Take a different route through hallways or walk with friends or a teacher to clas
this is where you would review them and have the kids all answer loudly together..are you going to do this kids? YES! ) or something. The board's eyes can look around nervously when they answer.
Finally after the steps have been presented, tell the bully on the board that all the kids would like him to stop being a bully and start being friendly...
(Erase his mad eyebrows and draw regular ones) Perhaps have him say "I'm sorry...I guess I'll have to learn how to change" or "Are they really going to do these things, really? I want my mommy....
There are a lot of good resources out there that can help with Bullying....
I got my pointers from
http://www.cyc-net.org/today2004/today040426.html
Lots more
http://www.google.com/search?hl=en&rlz=1B2GGGL_en__205__205&q=stopping+school+bullies&btnG=Search