Not Little

Meet Dot, the smallest person in her family. People often think she's younger than she is, but not when she tells them the square root of sixty-four or checks out hard books at the library. She may be small, but she's not little. One day a new boy named Sam joins Dot's class, and she wonders if he's even smaller than she is. When Dot sees Sam getting bullied by a mean kid twice his size, she proves how big she really is.