---
product_id: 6789517
title: "Sir Cumference and the Dragon of Pi"
price: "€ 15.91"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.fi/products/6789517-sir-cumference-and-the-dragon-of-pi
store_origin: FI
region: Finland
---

# Sir Cumference and the Dragon of Pi

**Price:** € 15.91
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Sir Cumference and the Dragon of Pi
- **How much does it cost?** € 15.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/6789517-sir-cumference-and-the-dragon-of-pi)

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## Description

Sir Cumference and the Dragon of Pi [Neuschwander, Cindy, Geehan, Wayne] on desertcart.com. *FREE* shipping on qualifying offers. Sir Cumference and the Dragon of Pi

Review: Great kids book - Great book for kids to learn math in an entertaining way.
Review: Great story for elementary ages! - We bought this initially to help our school celebrate "Pi Day" (March 14). It is a fun story and has a clever use of geometric terms (beyond the title). The concepts were a little tricky for the kindergarteners, but they loved the story and we were happy to at least introduce them to the concepts, even if they didn't get all of the math behind it. Our third graders, on the other hand, still loved the story, but were able to begin to appreciate the math and could make the connections between the two. Even our sixth graders enjoyed the story, and were excited to hear the next geometry name page after page! Because of how fun and educational this book is, we are going to try some of the others in this series next!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | 1570911649 |
| Best Sellers Rank | #89,356 in Books ( See Top 100 in Books ) #38 in Children's Geometry Books #97 in Puns & Wordplay #2,739 in Children's Action & Adventure Books (Books) |
| Customer Reviews | 4.8 4.8 out of 5 stars (613) |
| Dimensions  | 8.5 x 0.14 x 9.5 inches |
| Edition  | 1st |
| Grade level  | 2 - 5 |
| ISBN-10  | 9781570911644 |
| ISBN-13  | 978-1570911644 |
| Item Weight  | 5.7 ounces |
| Language  | English |
| Part of series  | Sir Cumference |
| Print length  | 32 pages |
| Publication date  | February 1, 1999 |
| Publisher  | Charlesbridge |
| Reading age  | 5 - 11 years, from customers |

## Images

![Sir Cumference and the Dragon of Pi - Image 1](https://m.media-amazon.com/images/I/91fOZtpm0eL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great kids book
*by D***C on February 27, 2025*

Great book for kids to learn math in an entertaining way.

### ⭐⭐⭐⭐⭐ Great story for elementary ages!
*by J***N on March 21, 2014*

We bought this initially to help our school celebrate "Pi Day" (March 14). It is a fun story and has a clever use of geometric terms (beyond the title). The concepts were a little tricky for the kindergarteners, but they loved the story and we were happy to at least introduce them to the concepts, even if they didn't get all of the math behind it. Our third graders, on the other hand, still loved the story, but were able to begin to appreciate the math and could make the connections between the two. Even our sixth graders enjoyed the story, and were excited to hear the next geometry name page after page! Because of how fun and educational this book is, we are going to try some of the others in this series next!

### ⭐⭐⭐⭐⭐ Surprisingly effective in teaching material in my focus group of one
*by S***N on June 10, 2014*

Having prepared myself for rejection, ready for rebuke for shoving math down her throat, I was rather amazed how my almost 8-year old granddaughter took to these books. Illustrations are nothing special, but effective. The child loves the punny names of all the characters. I now think she'll understand the concepts radius, diameter, circumference, pi, for the rest of her life. The child is only just beginning to learn her 2x, 3x multiplication tables, but she became so good after reading this book at thinking of circles in terms of Pi = Circumference divided by Diameter, I somewhat regretted that Knights of Angleland used angle measurements in degrees instead of radians. A missed opportunity. Because of this book, perhaps the first mathematical formula she truly understands is Circumference (read: Sir Cumference) = 2(Pi)(Radius) or (Pi)(Diameter). Using radians (Radius is Sir Cumference's son) as the angle measurement would both prepare kids for basic trig and allow for endless punning opportunities. Oh well ... maybe later in the series after old Sir Degrees passes away ... Even so, she liked it a lot more than I expected and it taught the material well. Hit right in her wheelhouse for reading level and just a hair ahead of her in math, though it's given her an incentive (among several) to learn her multiplication tables, which have been met with less resistance than one might suspect. She's voraciously read Dragons of Pi, Knights of Angleland, and the First Roundtable, all at least twice, this one four times, at least, so we're going to try a couple more. For me as an adult, I almost went with four stars because the illustrations aren't particularly inspiring. But based on how elegantly it treats the subject matter and the impressive reaction from my focus group of one, on her behalf I'll go with five. I wasn't expecting Sir Cumference to become a house favorite, but lately there always seems to be a copy near the top of the stack.

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-05*