Outlaw "I'm Done!" I LOVE this post from Kady at The Teacher Trap. She makes some really good points and includes suggestions for helping kids change their mindsets about rushing through their assignments. Awesome!
Classroom reward system- If the class shows great behavior, they will get to color in a letter tile of their choice. When every tile is colored in, the students will win that specific award. I just googled "Scrabble Font" and downloaded it for free. :)