Math-loving kittens prepare a party for their number-one grandmother in this playful picture book that demonstrates the key math concept of estimation. The CATastrophe! cats are back, this time causing even more chaos! Nine kitties are purring with excitement for Grandma Cat’s upcoming visit. They’re going to throw her a party with cake, decorations, and a special gift. But when frantically cleaning cats misjudge how many toys they can hide in a closet, catastrophe looms. . . . Author Ann Marie Stephens draws upon more than 30 years of teaching experience to ensure that readers absorb math while having fun in the adventure-filled CATastrophe Tale series. And Jenn Harney’s hilarious and energetic illustrations capture the antics of these enthusiastic kittens. Each book in the CATastrophe Tale series includes helpful back matter, which shows readers that, just like the kittens, they use mathematical skills in their everyday lives. Additional titles in the series include CATastrophe!: A Story of Patterns and CATawampus!: A Story of Shapes.

Math-loving kittens race to build the best robot as they compete in a STEM day at school in this playful picture book that demonstrates the key math concept of identifying shapes. It’s a wonderful day—because it’s STEM day! Kitties are challenged to build a robot and use the wind to make it move. With circles, squares, triangles, and rectangles, the kitties do their best to tape, glue, and paste—but oh no! The robot won’t move. How might these disorderly cats make sense of all these shapes and build a successful robot?  Author Ann Marie Stephens draws upon more than 30 years of teaching experience to ensure that readers absorb math while having fun in the adventure-filled CATastrophe Tale series. And Jenn Harney’s hilarious and energetic illustrations capture the antics of these enthusiastic kittens. Each book in the CATastrophe Tale series includes helpful back matter, which shows readers that, just like the kittens, they use mathematical skills in their everyday lives. Additional titles in the series include CATastrophe!: A Story of Patterns and sCATtered!: A Story of Estimation.

Nine kittens go on an exciting boating adventure that's a (funny) catastrophe in this playful picture book that demonstrates the key math concept of patterns. 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 strong rhythm, clever wordplay, and countable characters, CATastrophe! is a fun read-aloud that also shows what patterns can do. Helpful backmatter will deepen readers' understanding and challenge them to find more patterns in this book and in our world. There's also much to find in the illustrations-including a dragonfly and worm that each appear twenty times.

This playful picture book demonstrates key math concepts to children in a merry story featuring the Arithmechicks, ten math-loving chicks. The Arithmechicks have invited their new friend Mouse for a sleepover. When Mama says it's time for bed, the clever chicks decide it's time to prolong the fun instead! During the story, readers are invited to count and take away during everyone's favorite game of hide-and-seek -- and to find Mouse, who hides in a different place in each illustration -- until all settle down for bed in the warm, cozy conclusion. The book is the perfect introduction to essential math for young children and their caregivers. It includes a helpful glossary that defines the eight arithmetic strategies the chicks use throughout the story.