A great system for positive reinforcement.
Reward the class for hard work, quiet, good behaviour, kindness, etc by having a student select a blue tile to place on the reward option card of his/her choice. Once a card is filled out they earn the reward named on the card.
This system was successfully used in a 7th grade classroom but is editable to fit rewards that might be more appropriate in your classroom. If the doc file does not have the correct scrabble piece tile font, you might want to download and install the font "scramble."
Enjoy! And please leave some feedback so we know how it can be improved.