To restore dry erase boards that are hard to erase: spray a clean board with WD-40, wipe dry with paper towels. The WD-40 fills in the dried pores of the board that hold in marker ink, making it easier to erase.
LOVE THIS IDEA: I picked a stick and they never knew who that person was until the end of the day. If that person behaved in line, listened and followed directions in class with few warnings, they got a surprise out of the treasure box and their name went up on the wall of fame..if the mystery person did not behave their name went back into the box or whatever I had and it was never revealed. FREAKING GENIUS!