About the Holiday

Established in 2009, Math 2.0 Day celebrates math and technology and how these two disciplines complement each other. The day was conceived to bring together mathematicians, programmers, engineers, educators, and managers to raise awareness of the importance of math literacy at all levels of education. For kids a love of math and technology begins early as they experiment and explore every day during playtime, family time and even, as today’s book shows, at bedtime.

Thank you to Charlesbridge for sending me a copy of  The Animals Would Not Sleep! for review consideration. All opinions about the books are my own.

The Animals Would Not Sleep!

Written by Sara Levine | Illustrated by Marta Álvarez Miguéns

All of Marco’s stuffed “animals were making a ruckus” when his mom told him it was time to get cleaned up and ready for bed. She wanted to see all the toys put away, so Marco, who thought like a scientist, got to work. He wanted to sort his animals like a scientist would, so he got out three baskets and made signs for Flying Animals, Swimming Animals, and Animals That Move on Land. Then he picked up his dancing flamingo, bird, bat, and ladybug and put them in the first basket. He placed his octopus, stingray, frog, fish, whale, and seal in the second basket, and his dinosaur, giraffe, bears, snake, pangolin, gecko, mice, and zebra in the third basket.

But the animals were still wide awake, and “they egged one another on until not one remained in its container.” Marco thought they would settle down, but when his mom called the second time, he reconsidered his strategy. This time he made signs that sorted the animals by color, but zebra started to cry. He was afraid being in such close quarters with black-and-white snake and stingray, plus he missed his friend giraffe.

Image copyright Marta Álvarez Miguéns, 2020, text copyright Sara Levine, 2020. Courtesy of Charlesbridge.

Marco decided to try again. He took all of his animals out and made signs that read Small, Medium, and Large. Things seemed to quiet down, so Marco began to put on his pajamas. But then he heard moaning and groaning coming from the Large basket. When he went to check, Dinosaur and Dancing Flamingo complained about being too cramped. Plus, Dancing Flamingo missed Rainbow Bear. Then he heard noises from the Small basket. Those animals weren’t happy either.

Marco’s mom gave him two minutes to get it all sorted out. Fortunately for Marco, being a scientist meant “he was used to coming up with ideas and thinking outside the box.” The animals were getting tired, and Yellow Bear had just burst into tears for no apparent reason. Like a good scientist, Marco cared about his animals and wanted them to be happy. He had one more sorting idea. With the large animals, medium-sized animals, and small animals all tucked in with plenty of room and their friends nearby on Marco’s bed, Marco got under the cozy covers. He got a goodnight kiss from Mom and then they all fell happily to sleep.

Back matter includes an illustrated Author’s Note about the way scientists sort, or classify, animals by their characteristics as well as a discussion that explores the math in the story. “Try This!” tips provided by Karen Economopoulos, co-director of the Investigations Center for Curriculum and Professional Development at TERC, give adults ideas for various ways to engage children in sorting.

Image copyright Marta Álvarez Miguéns, 2020, text copyright Sara Levine, 2020. Courtesy of Charlesbridge.

Perfectly capturing the way young children interact with their toys, Sara Levine combines imagination and scientific thinking in her inventive story, part of the Storytelling Math series from Charlesbridge. In Marco, who’s proud of his scientific thinking, Levine shows readers that they, too, already think like a scientist. Marco’s empathy for his animals’ complaints will get kids thinking about classification and the various ways they might sort the animals. Levine’s use of realistic dialogue that echoes bedtime routines in many homes and gives each character—human and animal—distinct personalities will draw kids in to this charming story that is organically infused with strong math lessons. Levine gives Marco a sweet final solution to his problem that will please kids and have them wanting to extend the lessons in the story to their own toys and/or household objects while they think like a scientist too.

Marta Álvarez Miguéns opens the story with an enchantingly wild two-page spread where Marco stands in the middle of his room as his toys bounce on the bed, climb blocks, juggle, fly, and cause a ruckus. Turn the page, though, and these animals now lie motionless around the room as Mom peeks in to check on Marco. When Marco sorts his animals into the baskets, readers can clearly see which animals go where and why. Kids will knowingly giggle when the just-sorted animals spring from their resting places to prolong bedtime. Miguéns also plainly depicts Marco’s and the animals’ facial expressions from happy and playful to sad and crying to peaceful and satisfied. These images give adults and children an opportunity to discuss emotions and how to recognize various clues in faces, a skill important for social-emotional learning. Vivid colors, adorable animals, details such as alphabet blocks that stack or are turned to spell words, and kid-appealing décor will have kids wanting to come back again and again.

A book that’s sure to become a favorite at bedtime or to enhance classroom or homeschooling curriculum, The Animals Would Not Sleep! will spark mathematical and scientific thinking and recognition in all young learners. The book offers an irresistible invitation to experiment and interact with math and science and is a must for home, school, and public library collections.

Ages 3 – 6

Charlesbridge, 2020 | ISBN 978-1623541286 (Hardcover) | ISBN 978-1623541972 (Paperback) 

Discover more about Sara Levine and her books on her website.

To learn more about Marta Álvarez Miguéns, her books, and her art, visit her website.

About Storytelling Math

Storytelling Math offers books that celebrate children using math in their daily lives as they play, build, collaborate, compromise, and discover the world around them. Each story features characters of color who are empowered to solve problems, enjoy activities, and help out using their knowledge of and experimenting with math. Free downloadable hands-on activity kits are available for each book on the Charlesbridge website. Sharing these joyful stories with your littlest ones and older kids will make them eager to explore, use, and learn more about math every day. You can learn more about Storytelling Math on the Charlesbridge website. 

Storytelling Math: Math, Diversity, and the Power of Story was developed with Marlene Kliman at TERC—a nonprofit dedicated to STEM education—under a grant from the Heising-Simons Foundation.

Enjoy this The Animals Would Not Sleep! trailer with Author Sara Levine!

National Book Month Activity

The Animals Would Not Sleep! Activity Kit

You can have fun sorting and exploring math with your class or family with the Activity Kit for The Animals Would Not Sleep on the Charlesbridge website. Download it here!

The Animals Would Not Sleep Activity Kit

You can find The Animals Would Not Sleep! at these booksellers

Amazon | Barnes & Noble | Books-a-Million

To support your local independent bookstore, order from

Bookshop | IndieBound

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