March 14 – National Pi Day

Bedtime Math The Truth Comes Out Picture Book Review

About the Holiday

What would we do without pie, huh? The flaky crust, the delicious filling….What? Oh, how embarrassing! It’s Pi Day! Well, what would we do without pi, huh? All those circles would go unmeasured, the world just wouldn’t fit together quite right…

Pi Day recognizes the usefulness of the mathematical constant Pi, the first three numbers of which are 3.14. In 1988 Larry Shaw noticed the correlation to March 14 and organized the first Pi Day celebration at the Exploratorium in San Francisco, California. In 2009 The U.S. House of Representatives officially named March 14 as National Pi Day. The day is celebrated by schools and other organizations with math projects, pie-eating contests, and other fun events.

Bedtime Math: The Truth Comes Out

Written by Laura Overdeck | Illustrated by Jim Paillot


Bedtime has never been so numerical! Oh sure, kids might count the stars out their window or sheep leaping a fence, but how about flavors of astronaut ice cream or towns named for food? Wouldn’t it be fun to figure out how far a marshmallow shot from a rubber band will go? Or how to stop a charging rhino? Or whether a snake can lose its tongue? You bet it would! And that’s the genius behind the Bedtime Math series, which also includesBedtime Math: A Fun Excuse to Stay up Late and Bedtime Math: This Time It’s Personal.

Bedtime Math goes way beyond simply presenting math problems for kids to solve. Each problem begins with fascinating facts or trivia about topics kids care about, such as space, animals, food, themselves, and the world they live in. Adults will find as much to like about these revealing tidbits as kids.

Reluctant math students will respond to this series, as the presentation is light-hearted, humorous, and educational in the best way. They may not even realize they’re doing higher math as they try to solve these brain ticklers.

Each mind boggler comes with three difficulty levels—Wee Ones, Little Kids, and Big Kids—plus a bonus question that’s more advanced so that everyone can join in the fun. An extensive introduction gives tips and suggestions for using the book and answers any questions readers may have about the approach.

Of course, these cool calculations don’t have to wait for bedtime. They’re a smart way to fill those “I’m bored” moments or to just spend time together no matter when it is. Bedtime Math has expanded to include its own website and a nation-wide afterschool math club, Crazy 8s.

Author Laura Overdeck began using this technique to math learning with her own children and with a BA in astrophysics is well-qualified to take your child’s math skills to the stars and beyond!

Jim Paillot enhances each page with colorful exaggerated and humorous takes on the math teaser at hand, which increase kids’ interest in and even understanding of the concepts being “taught.”

Ages 3 – 8

Feiwell & Friends Publishers, 2015 | ISBN 978-1250047755

National Pi Day Activity

CPB - Pi Day Pie Match


Pi Day Pie Match


All this talk about math has made me hungry! You too? Well, just put these pies together and then you can enjoy a snack! Print the Pi Day Pie Match game here.

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