Readers will put their multiplication skills to use in this clever math adaptation starring the fairy-tale favorite, Rumpelstiltskin. It's been 10 years since the queen defeated Rumpelstiltskin and now he's back to collect his payment from years before. He causes a stir in the kingdom by making mischief with his multiplying stick and threatens to do far worse if the debt is not repaid. It's up to Peter, the young prince, to take possession of the Rumpelstiltskin’s magical multiplying stick and learn how to use it—and multiply both whole numbers and fractions-- in order to restore peace to the kingdom. A perfect mix of math, fairy-tale, and fun, The Multiplying Menace will get STEM/STEAM readers excited to solve the adventure one number at a time.

Twelve-year-old Maggie Malloy can make wishes come true. But she’s learned that people like magic better in storybooks than in real life, and longs to find someone who understands her power. When she’s forced to spend a year with her grandmother, Maggie discovers an old magic repair shop—and the owner, Mr. McGuire, is a real magician, just like Maggie! She becomes Mr. Maguire’s apprentice and learns how to repair cauldrons, break disfiguring hexes, and mend magic hats that won’t stop duplicating rabbits. But Maggie is in more trouble than she bargained for when an evil magician, Milo the Magnificent, comes to town with his deadly magic act….

Enzo is the son of a great magician, however unlike his father, his spells create chaos instead of order. What really interests Enzo, more than books about magic, are books by and about the lives of famous physicists and astronomers like Galileo Galilei and Johannes Kepler. Enzo dreams not of becoming a magician, but a mathematician instead. When Tessel, the village shoemaker, is called upon to make twelve identical shoes out of only one piece of leather, Aida, the shoemaker’s sister, goes to Enzo’s father for some magic to help her brother. With Enzo’s father out of town at a magic convention, it’s up to Enzo to help Aida and Tessel out of their predicament. A spell snafu leads Enzo and Aida to a method of forming patterns without gaps or overlaps, and they discover that math, not magic, may be the answer to their problem. Sharon Morisette’s accessible text introduces readers to the concept of tessellations, while Philomena O’Neill’s illustrations offer a clear visual to what tiling is—children will enjoy finding the tessellations hidden throughout the images. Back matter includes a glossary and notes about tessellations, Galileo, and Kepler.

Equal parts action and humor add up to a wholly entertaining introduction to simplifying fractions, in this one-of-a-kind math picture book story. When a valuable fraction goes missing, George Cornelius Factor (a.k.a. GCF) vows to track it down. Knowing that the villainous Dr. Brok likes to disguise his ill-gotten fractions, G.C.F. invents a Reducer—half ray gun, half calculator— that strips away the disguise, reducing the fraction to its lowest common denominator and revealing its true form. With the Reducer in hand, George seeks out Dr. Brok in hopes of retrieving the missing fraction. David Clark’s illustrations are packed with humorous details as well as clearly defined fractions and their corresponding reduction equations.

Farmer Worth discovers that a special tree on his farm produces different kinds of money, depending on what animal fertilizer he uses.

Readers will put their division skills to use in this clever math adventure follow-up to THE MULTIPLYING MENACE. After being banished to the Abyss of Zero, Rumpelstiltskin is back, and he’s stirring up more trouble than ever. Together with his sidekick, a witch named Matilda, Rumpelstiltskin plots his revenge on Peter and uses his magical powers to divide the kingdom into frogs. Peter and his dog, Zero, must locate the Great Multiplier and find a solution that will break the Great Divide before Rumpelstiltskin has a chance to combine the two mighty math sticks. Can Peter once again save the kingdom in time, or will it meet a green and warty fate? Young readers will learn all about dividing by whole numbers and fractions, as well as division rules for equations involving zero, all while follow Peter and Zero on another adventure. A perfect mix of math, fairy-tale, and fun, THE MULTIPLYING MENANCE DIVIDES will get STEM/STEAM readers excited to solve each puzzle one number at a time.

Ten years after being tricked, Rumpelstiltskin returns to the royal family to wreak vengeance using multiplication. Includes nonfiction math notes about multiplying by whole numbers and by fractions.