A crew of hungry kittens and their captain head to the lake to catch some dinner, but the fish have surprises in store for them. Even before the cats encounter the fish, they run into trouble. What happens when confused kitties paddle every which way? Or when they all lean in the same direction? A pattern is needed to avoid a catastrophe! Patterns are the foundation on which math is built. Using rhythm, wordplay, and countable characters, CATastrophe! shows what patterns can do. Includes backmatter to deepen readers' understanding and challenge them to find more patterns in this book and in our world. Search the illustrations for a dragonfly and worm that each appear twenty times.