Do Bananas Chew Gum? (Beech Tree Chapter Books)

Sam acts like a smart aleck to keep from looking dumbSam Mott's made it most of the way through sixth grade barely able to read and write. Now Sam's family's moved again, and none of the kids in his new school have started calling him Dumbhead Sam -- yet. But how long can Sam keep his problem secret when even the second grader he baby-sits for reads better than he does?