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, Sir Cumference hears news about an impending snow siege from a young countryman named Volomo Longitudo Latitudo Altitudo. Volomo invites Sir Cumference in and shows him a nifty method for storing grains so that the harvest is easily countable and stackable. At the castle, Sir Cumference ...

Join Sir Cumference, Lady Di of Ameter, and their son Radius for wordplay, puns, and problem solving in this angle-packed math adventure. In the third installment of the beloved Sir Cumference series, Radius must prove himself on his quest for knighthood by rescuing a king. Sent off with the family medallion for luck, Radius dodges dangers and dragons. The ultimate challenge lies in a mysterious castle with a maze of many angles.

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 Di discover "Fracton numbers" while purchasing cloth and cheese at the Fracton Faire. While two-fourths may seem like the same as one-half, in truth it denotes two parts of one-half, or two quarters of the whole. But the real mystery is the fact that items at the fair keep disappearing, and Sir C, Lady ...

Part of the popular Sir Cumference series! Baker Pia is back with a handy way of counting by tens and fractions in this fun introduction to the decimal system.This time the focus is back on Pia of Chartres from Sir Cumference and the Off-the-Charts Dessert. She is kidnapped by a family of ogres--Tentt, the father, Hoondrit, the mother, and their ten daughters, Una to Decima.Pia is asked to help the ogres prepare a feast for a large celebration, whic...

Join Sir Cumference for wordplay, puns, and problem solving in this entertaining, medieval math adventure story about radius and the number Pi.This time the math adventure is centered around a potion that changes Sir Cumference into a fire-breathing dragon. Can Radius change him back? Join Radius on his quest through the castle to solve a riddle that will reveal the cure. It lies in discovering the magic number that is the same for all circles.The second in...

Join Sir Cumference, Lady Di of Ameter, and their son Radius for wordplay, puns, and problem solving in this geometry-packed math adventure.King Arthur was a good ruler, but now he needs a good ruler. What would you do if the neighboring kingdom were threatening war? Naturally, you'd call your strongest and bravest knights together to come up with a solution. But when your conference table causes more problems than the threat of your enemy, you need expert help. Enter Sir ...

For fans of the Sir Cumference series with coordinate geometry on their mind, here is the seventh installment in this fun look at math and language.While riding through the forests of Angleland, cousins Per and Radius realize they are lost and are desperate for a map to guide them home. Soon they come across a mysterious house in the hills. Inside they find a map to a treasure belonging to Xaxon Yellowbearyd, the fiercest Viking warrior of his time. Per and Radius must decode the s...

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 Rounds and Sir Cumference notice that there are strangers camped nearby, Rounds II decides to investigate despite being involved with the task of learning how to make accurate counts of the castle's stores of food, supplies, and weaponry. When he reports back that an enemy is lying in wait, everyone...

Join Sir Cumference and the gang for more wordplay, puns, and problem solving in the clever math adventure about place-value and counting by tens.Sir Cumference and Lady Di planned a surprise birthday party for King Arthur, but they didn’t expect so many guests to show up. How many lunches will they need? And with more guests arriving by the minute, what about dinner? Sir Cumference and Lady Di count guests by tens, hundreds, and even thousands to help young reader...

Join Sir Cumference and the gang for more wordplay, puns, and problem solving in the clever math adventure that introduces readers to the concepts of area and perimeters. When young Per visits her uncle Sir Cumference and his family, she learns how to play the game, "Inners and Edges." After she finds a clue linking the game to the mysterious castle on the island of Immeter, she must figure out how to find the perimeter and area of a circle to unlock the island's secret. Fans will love cra...

A funny and pun-filled retelling of “The Sword and Stone” that introduces readers to mathematical angles.King Arthur has hidden his sword, Edgecalibur and issued a challenge to the knights. The first knight to find the sword will be the next king. Can Sir Cumference and Lady Di point Radius's best friend, Vertex in the right direction? Will Vertex's sharp thinking give him the edge?Join Sir Cumference, Lady Di of Ameter, and their son, Radius, in this new adventure where th...

Medieval math favorite Sir Cumference series is back! Lady Di of Ameter and Percilla Centwell figure out parts of a whole in this fun percent introduction.Percilla Centwell and Lady Di are off to Gaggleston-on-Green to deliver Percilla's flock of one hundred geese to the townspeople who ordered them. When some of the geese go missing on the way, Percilla and Lady Di must figure out a way to make sure all of the customers still get their fair share of the flock....