Happy Pi Day to You! All About Measuring Circles (The Cat in the Hat's Learning Library)

Worth, Bonnie

ISBN 10: 0593903757 ISBN 13: 9780593903759

Publisher: Random House Books for Young Readers, 2025

Synopsis

Laugh and learn with fun facts about the history of pi, measurements, theorems, and more—all told in Dr. Seuss’s beloved rhyming style and starring the Cat in the Hat!

“It is all about circles and measuring fun. So put on your Pi Hats! Let’s start, everyone!”

The Cat in the Hat’s Learning Library series combines beloved characters, engaging rhymes, and Seussian illustrations to introduce children to non-fiction topics from the real world! Go on an adventure with the Cat in the Hat and learn:

• how to measure and draw circles
• how pi is a number so long that it never ends
• how Ancient Egyptians used pi to help build the pyramids
• and much more!

Perfect for story time and for the youngest readers, Happy Pi Day to You! All About Measuring Circles also includes an index, glossary, and suggestions for further learning.

Look for more books in the Cat in the Hat’s Learning Library series!
High? Low? Where Did It Go? All About Animal Camouflage
Is a Camel a Mammal? All About Mammals
The 100 Hats of the Cat in the Hat: A Celebration of the 100th Day of School
A Great Day for Pup: All About Wild Babies
Would You Rather Be a Pollywog? All About Pond Life
I Can Name 50 Trees Today! All About Trees
Fine Feathered Friends: All About Birds
My, Oh My--A Butterfly! All About Butterflies
Oh Say Can You Seed? All About Flowering Plants
Inside Your Outside! All About the Human Body
Ice is Nice! All About the North and South Poles

About this title

About the Author

Bonnie Worth is the author of countless books for young readers, among them 18 of the Cat in the Hat's Learning Library books, including Oh Say Can You Say Di-No-Saur?, If I Ran the Rain Forest, Oh Say Can You Seed? (winner of the 2003 Ohio Farm Bureau Award), Hark! A Shark!, and If I Ran the Horse Show.

Aristides Ruiz is the illustrator of all the Cat in the Hat's Learning Library books.

Joe Mathieu has illustrated countless books for children, including Big Frank’s Fire Truck, Sesame Street titles, books in the Cat in the Hat’s Learning Library series, and many more.

Edition details

• Publisher: Random House Books for Young Readers
• Publication date: 2025
• Language: English
• ISBN 10: 0593903757
• ISBN 13: 9780593903759
• Binding: Library Binding
• Illustrator: Ruiz Aristides, Mathieu Joe
• Number of pages: 48