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# Sir Cumference and the Sword in the Cone

## (Sir Cumference #4)

by

King Arthur has issued a challenge. The first knight to find the sword Edgecalibur will be the next king. Join Sir Cumference, Lady Di of Ameter, and their son, Radius, as they race to help their friend, Vertex, find the sword and discover the secrets of cubes, pyramids, cylinders, and cones.

Paperback, 32 pages

Published
July 1st 2003
by Charlesbridge
(first published January 1st 2003)

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## Community Reviews

Showing 1-30

Apr 02, 2011
Kelley
rated it
really liked it
·
review of another edition

Shelves:
later-elementary-school,
math

The character names alone- "sir cumference" "lady di ameter" and their son "radius" are HILARIOUS! This truly is an adventure in math and other elementary school children will love this! It makes math fun to read a story to figure out something like this, with three dimensional shapes and formulas. I also like that the author explains the real life connection to math (the history/explanation of the formula of this story) on the last page. The story is kind of hard to follow along with unless you
...more

**More like Sir Barely-Appearing-In-This-Book.**

This review was oringinally published at http://www.drttmk.com/books/sir-cumfe....

What even is this? This book is just weird. And apparently it's the fourth one in a series that are all about Sir Cumference. And the title is misleading, because Sir Cumference isn't really all that important to the story, it's more about his son Radius's best friend Vertex.

The family is sitting at a table, eating or something, and Vertex runs in, saying that King Arthur ...more

*Sir Cumference*is a series of entertaining, clever, and imaginative medieval fantasy tales set in a world full of fun geometry-based names and lands. The reader follows the adventure of each book and discovers new math concepts along with the knights and ladies in the stories - and sometimes dragons. I've always loved a good picture book, and I still do - and these books are a wonderful example of a quality picture book. I've enjoyed

*Sir Cumference*immensely in both childhood and adulthood.

Each ...more

**Author**: Cindy Neuschwander

**Illustrator**: Wayne Geehan

**First published**: 2003

**Length**: 32 pages

More complex maths than earlier books.

Measurements in feet and inches.

Geometry, 3D shapes

~ define edges, points, faces, vertex, polyhedron

~ defines cube, pyramid, rectangular prism, triangular prism, cone, cylinder

Euler's Law: the number of faces + number of vertices - number of edges = 2 for any polyhedron.

**Sir Cumference**:

Book 1 Sir Cumference and the First Round Table

Book 2 Sir Cumference and the Dragon of P ...more

Ages: 9+

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Feb 11, 2010
Dolly
rated it
really liked it
·
review of another edition

Recommends it for:
parents reading with their children

We discovered these books about Sir Cumference on the "Tumblebooks" online audiobook site (http://tumblebooks.com), which is available for free as one of the online resources from our local library. Our girls really enjoyed watching them read aloud.

Although I think the math concepts regarding geometry are a little more difficult to understand for children in grades K-2, I think it was a valuable way to introduce the concepts.

Because the story itself is fun, it makes the educational focus of th ...more

Although I think the math concepts regarding geometry are a little more difficult to understand for children in grades K-2, I think it was a valuable way to introduce the concepts.

Because the story itself is fun, it makes the educational focus of th ...more

Readers are introduced to Euler's Law, or the two's test for geometrical solids. Anytime the number of faces on a geometric sold is added to the number of its points (vertices) and then subtracted from the number of edges, the answer will always be two. (note that this works for any polyhedron, straight-sided, solid shape).

I think this book would be most meaningful for readers ...more

Early Literacy Skills: Vocabulary, Narrative Skills

From cover:

Sir Cumference is back and he's not alone, helping Sir Vertex seek the sword in the cone.

King Artur has hidden his sword, Edgecalibur. The knight who finds it will be the next king.

Can Sir Cumference and Lady Di point Vertex in the right direction? Will Vertex's sharp thinking give him the edge?

Another math adventure with Sir Cumference and his family with this nicely illustrated story about shapes.

Yeah, but who cares?

Jun 04, 2011
Jeff
rated it
really liked it
·
review of another edition

Shelves:
mathematics,
picture-books

Another adventure of Sir Cumference, this book gives an introduction to three-dimensional solids from nets to the connections between bases and heights of cones. In this one, Vertex the cousin of Radius mimics the King Arthur story by finding the sword Edgecalibur hidden not in a stone, but a cone. Fun!

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Cindy Neuschwander is a native Californian, born in San Diego, CA. Her father was a naval officer and later a high school teacher and her mother was a homemaker. She has one younger brother.

Cindy graduated with a BA in International Studies from Willamette University and earned an MA from Stanford University. She has taught all grades in elementary school as well as high school.

Cindy began writing ...more

Cindy graduated with a BA in International Studies from Willamette University and earned an MA from Stanford University. She has taught all grades in elementary school as well as high school.

Cindy began writing ...more

## Other books in the series

Sir Cumference
(10 books)

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