Sir Cumference and the Great Knight of Angleland

by Cindy Newschwander
Available from Amazon
*****

In this entertaining math adventure, Sir Cumference’s son, Radius, enters upon a quest. Quests were the thing to do for aspiring knights in the ancient land of Angleland (apparently now known as England on current maps). So Radius goes to rescue King Lell, and takes with him a medallion, very much like a protractor. He uses it to determine angles which help him to follow the clues to find the missing king. When he is successful, angles are named after similar places in his adventure, such as the Mountains of Obtuse. Plenty of math terms find themselves in the story, which make it all the more entertaining. Such a great way to introduce geometry to younger children!

Sir Cumference and the Isle of Immeter

by Cindy Neuschwander, Illustrated by Wayne Geehan
Available from Amazon
*****

Back in the days of Camelot, people knew geometry, but they learned it in adventures instead of textbooks. Per of Ameter played a game created by the Countess Areana in which they figured the outside edges and inner pieces of shapes made with the same size squares. Their skill at this game allowed them to solve several mysteries on the Isle of Immeter through a few escapes, as the island was protected by a sea dragon. Finally Per solved all the puzzles, and the sea dragon delivered a locked from the Countess Areana giving Per ownership of the island. When the two children returned from their adventure, Sir Cumference named the measurement of the outside edge of any flat, straight sided shape perimeter, after Per, who now was the Lady of Immeter. The inside of the shapes was called Area, after the Countess Areana who designed all the puzzles they solved. And so, as you will know if you have read this book, this is a cute, abbreviated account of the true way geometry really evolved.

A handy chart on the last page explains in mathematical terms the formulas described in the book.

Sir Cumference and the First Round Table

by Cindy Neuschwander
Illustrated by Wayne Geehan
Available from Amazon
****

This 32 page children’s book tells how Sir Cumference, his wife the Lady Di of Ameter, and their son Radius solve the problems of the king’s table. King Arthur and his knights needed to have a council, but there was a problem with the table around which they met. It began as too long; after that was fixed, the table had too few sides, and other tables produced more objections. Geo of Metry makes tables in several shapes before a round table solves all the problems. The illustrations are great, with medieval pageantry and geometric explanations. A few other characters from Camelot appear, such as Sir Lancelot and Sir Gawain.

This is a great book to introduce geometry to the young, making it fun and easy. Shapes and measurements are explained in the quest for the perfect council table for the king and his knights. When the round table is finally found to be the perfect shape, the king names certain measurements after Sir Cumference, Radius, and the Lady Di from Ameter. Very cute!

The Sword and the Circle: King Arthur and the Knights of the Round Table

by Rosemary Sutcliff
Available from Amazon
***
Rosemary Sutliff acknowledges in the preface of the book that this story really is a myth, albeit a myth built around a real person. Many of the stories connected with King Arthur are retold here.

Read as a myth, the book is enjoyable. I could not enjoy it very much due to the prevalence of magical occurences. I know these are crucial to the story, and it is all very celtic, but the magic did bother me. Also that several cases of immorality were treated lightly, for example, between Guenever and Lancelot.