Isabel's Noisy Tummy

Isabel's classmates think it is hilarious when Isabel's tummy rumbles in class. Everyone is always giving her advice about her noisy tummy, but nothing seems to work. Until one day the class visits the zoo and Isabel's growling tummy saves them all from an escaping tiger. This amazing roar seems to have worn her tummy out and there is no more growling and rumbling, until one day a noise breaks the silence in class. But that wasn't Isabel's tummy. . .