Sir Cumference and the Fracton Faire
written by Cindy Neuschwander; illustrated by Wayne Geehan
Source: Review copy provided by the publisher
"They're Fracton numbers, my lady," the woman answered. "They are used to measure equal pieces of something, such as this beautiful cloth."
Lady Di of Ameter and Sir Cumference are visiting a fair with their friend the Earl of Fracton. In Fracton, you can buy a whole item or pieces of it. Lady Di spies a bolt of red fabric, but while she is getting a lesson on numerators and denominators from the seller, the fabric disappears. Meanwhile, Sir Cumference and the Earl are craving a snack so they chat up the cheese monger. He provides a lesson on equivalent fractions, which disappoints Sir Cumference because he, like an overeager second grader, thought choosing a large number for the denominator would guarantee more cheese. When the cheese monger turns to cut from the cheddar wheel, it's missing too! In fact, all of the vendors are missing items. Momentarily flummoxed, the Earl decides to think like a thief which allows him to devise a fracton-like plan to catch the stealing stinkers. Through the medium of a puppet show, a reward of one valuable gold coin is offered to the customer that can find the largest fraction written on pieces of paper distributed throughout the fair. The Earl surmises that only a visitor to Fracton would be delighted with a low numerator and a high denominator. Sure enough, a motley crew leader boasts of having found 1/32 and is outwardly annoyed when his fraction is not declared the winner. Case closed.
Fractions are one of the hardest topics for math students in grades 2-5. So when an engaging resource can be found to propel their learning, there is mathematical mirth to be had. The concepts are explained in an enlightening way both textually and visually. You also get the added bonus of fun wordplay, which is a hallmark of the Sir Cumference book series. All hail this new addition to a venerable math series!