Jumping into Nothing — Gina Willner-Pardo

Sophie is glad it's summer because after her summer-school math class she can hang out at the local swimming pool with her best friend, Annalise. But she's scared to jump off the high diving board, and that's what everyone else wants to do, even Annalise. Maybe, Sophie thinks, she can train herself to be brave by making a list of scary things to do and doing them, one by one. If she can do a math problem on the board and ride her bike no-hands, surely she can manage that jump! Short, humorous, easy-to-read chapters with plenty of funny illustrations tell the lively story of Sophie's summer project and the surprising discoveries she makes on the way to her goal.