Just a Little Different (Little Golden Book) - Mercer Mayer, Gina Mayer

Cute Little Critter book about being different. A new critter moves down the street but people do not want to play with him because he is too different. Then he makes one friend and then everyone accepts him just as he is after a little time. You could use this with grades K-1 to discuss how everyone is different and it is okay to be different.