Join Sir Cumference and the gang for more wordplay, puns, and problem solving in the clever math adventure that introduces readers to the concept of rounding numbers. When Steward Edmund...
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Join Sir Cumference and the gang for more wordplay, puns, and problem solving in the clever math adventure that introduces readers to the concept of fractons. Sir Cumference and Lady...
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Sir Cumference, his wife, Lady Di of Ameter, and their son Radius use different geometry and problem-solving techniques to help King Arthur...
Medieval math favorites Sir Cumference and Lady Di of Ameter learn a method to calculate volume in this adventure story introduction to a math curriculum staple. While on horseback,...
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Xaxon Yellowbearyd was the fiercest Viking warrior of his time. Now a map to his hidden treasure lies in Radius and Per's hands. Together the cousins must decode the strange numbered...
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Radius is on a quest. To earn his knighthood he must find and rescue a missing king with only a circular medallion, a mysterious poem, and his own wits to guide him...
King Arthur has issued a challenge--the first knight to find the sword Edgecalibur will be the next king--and Sir Cumference wants to be the one...
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