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Happy Pi Day to You! All About Measuring Circles by Bonnie Worth
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Happy Pi Day to You! All About Measuring Circles

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

Best Seller

Part of The Cat in the Hat's Learning Library

Part of The Cat in the Hat's Learning Library

Part of The Cat in the Hat's Learning Library

Hardcover $9.99

Feb 04, 2020 | ISBN 9780525579939 | 5-9 years

Hardcover $12.99

Jan 14, 2025 | ISBN 9780593903759 | 5-9 years

Ebook $7.99

Feb 04, 2020 | ISBN 9780593301401 | 5-9 years

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    Happy Pi Day to You! All About Measuring Circles by Bonnie Worth
    Hardcover $9.99
    Feb 04, 2020 | ISBN 9780525579939

    Buy from Other Retailers:

    See All Formats (2) +
    • $9.99

      Feb 04, 2020 | ISBN 9780525579939 | 5-9 years

      Buy from Other Retailers:

    • $12.99

      Jan 14, 2025 | ISBN 9780593903759 | 5-9 years

      Preorder from:

    • Feb 04, 2020 | ISBN 9780593301401 | 5-9 years

      Buy from Other Retailers:

    Buy the Ebook:

    About Happy Pi Day to You! All About Measuring Circles

    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 Happy Pi Day to You! All About Measuring Circles

    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 Happy Pi Day to You! All About Measuring Circles

    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

    Also by Bonnie Worth

    The Cat in the Hat's Learning Library Boxed Set
    Hug a Bug: How YOU Can Help Protect Insects
    The Cat on the Mat: All About Mindfulness
    Hurray for Today!
    Cows Can Moo! Can You? All About Farms
    See all books by Bonnie Worth

    Also by Bonnie Worth

    The Cat in the Hat's Learning Library Boxed Set
    Hug a Bug: How YOU Can Help Protect Insects
    The Cat on the Mat: All About Mindfulness
    Hurray for Today!
    Cows Can Moo! Can You? All About Farms
    See all books by Bonnie Worth

    Also by Bonnie Worth

    The Cat in the Hat's Learning Library Boxed Set
    Hug a Bug: How YOU Can Help Protect Insects
    The Cat on the Mat: All About Mindfulness
    Hurray for Today!
    Cows Can Moo! Can You? All About Farms
    See all books by Bonnie Worth

    About Bonnie Worth

    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… More about Bonnie Worth

    About Aristides Ruiz

    New Jersey native and “constant doodler” ARISTIDES (“Art”) RUIZ has illustrated over 100 books for children—among them 40+ books in the Cat in the Hat’s Learning Library series. A versatile artist, he divides his time between illustrating for children and fine art painting.

    About Joe Mathieu

    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.

    About Bonnie Worth

    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… More about Bonnie Worth

    About Aristides Ruiz

    New Jersey native and “constant doodler” ARISTIDES (“Art”) RUIZ has illustrated over 100 books for children—among them 40+ books in the Cat in the Hat’s Learning Library series. A versatile artist, he divides his time between illustrating for children and fine art painting.

    About Joe Mathieu

    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.

    About Bonnie Worth

    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… More about Bonnie Worth

    About Aristides Ruiz

    New Jersey native and “constant doodler” ARISTIDES (“Art”) RUIZ has illustrated over 100 books for children—among them 40+ books in the Cat in the Hat’s Learning Library series. A versatile artist, he divides his time between illustrating for children and fine art painting.

    About Joe Mathieu

    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.

    Product Details

    Category: Children’s Nonfiction

    Hardcover | $9.99
    Published by Random House Books for Young Readers
    Feb 04, 2020 | 48 Pages | 6-1/2 x 9 | 5-9 years | ISBN 9780525579939

    Category: Children’s Nonfiction | Children’s Picture Books

    Hardcover | $12.99
    Published by Random House Books for Young Readers
    Jan 14, 2025 | 48 Pages | 6-1/2 x 9 | 5-9 years | ISBN 9780593903759

    Category: Children’s Nonfiction

    Ebook | $7.99
    Published by Random House Books for Young Readers
    Feb 04, 2020 | 48 Pages | 5-9 years | ISBN 9780593301401

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