Mathical Book Prize
From the Simons Laufer Mathematical Sciences Institute (SLMath)
Educators: Join the Mathical Readathon as a classroom anytime this year!
By Sandra Boynton
Illustrated by Sandra Boynton
Year Published: 1977
Mathical Hall of Fame Ages 02–04 Award Year: 2020
One hippo, all alone, calls two hippos on the phone. So begins Sandra Boynton’s classic counting story, Hippos Go Berserk! Exuberant hippopotamus guests show up in ever-increasing numbers, until an all-night party is inevitable.
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