Happy Pi Day from the Wyoming State Library! Here’s some news that’s even more exciting than even pizza or pie–all TEN of the Sir Cumference books by Cindy Neuschwander are available on TumbleMath for Pi Day!
For those unfamiliar with TumbleMath, it is a companion resource to the popular Tumblebooks resources available on GoWYLD. TumbleMath delivers the same caliber of high-quality children’s books in animated form and focuses on literature that enhances students’ understanding of math concepts including counting, addition, subtraction, multiplication, word problems, geometry, fractions, place value, measurement, probability, division, graphing, finance, time, temperature, and more.
TumbleMath is currently available on GoWYLD as a trial subscription, so be sure to try it out before September 30, 2025, to see what you think!
If you haven’t read any of the Sir Cumference books, you are in for a mathematical treat. This series of picture books are geared towards elementary school students, but older students may enjoy them, too. All of the books are stories that involve geometric concepts with a particular focus on circles, their components, and related vocabulary. Characters include Sir Cumference, who is a knight of the round table, Lady Di of Ameter, Radius, and many more fun people and creatures, most with mathematical names. Their adventures center around solving problems using mathematical concepts in a fun, practical, and engaging way.
The ten Sir Cumference titles available on TumbleMath for Pi Day are:
- Sir Cumference and All the King’s Tens
- Sir Cumference and the Fracton Faire
- Sir Cumference and the Off-the-Charts Dessert
- Sir Cumference and the Roundabout Battle
- Sir Cumference and the Viking’s Map
- Sir Cumference and the Dragon of Pi
- Sir Cumference and the First Round Table
- Sir Cumference and the Great Knight of Angleland
- Sir Cumference and the Isle of Immeter
- Sir Cumference and the Sword in the Cone
Celebrate math on Pi Day and every day with these fun and educational adventures along with all the other great math books on TumbleMath!