If you could hike to the moon, how long would it take? Just how many glasses of lemonade would you need to fill an Olympic-size swimming pool? If everyone on Earth owned exactly the same amount of land, how big would your yard be? And how much time would you spend mowing the lawn? Learn the math behind these questions in this hilarious romp through weight, volume, distance, and more. These 12 zany scenarios add up to a book full of fun!

"This book presents a series of goofy questions that will help kids understand various mind-boggling math concepts."--

More than two hundred new and challenging logic puzzles—the simplest brainteaser to the most complex paradoxes in contemporary mathematical thinking—from our topmost puzzlemaster (“the most entertaining logician who ever lived,” Martin Gardner has called him). Our guide to the puzzles is the Sorcerer, who resides on the Island of Knights and Knaves, where knights always tell the truth and knaves always lie, and he introduces us to the amazing magic—logic—that enables to discover which inhabitants are which. Then, in a picaresque adventure in logic, he takes us to the planet Og, to the Island of Partial Silence, and to a land where metallic robots wearing strings of capital letters are noisily duplicating and dismantling themselves and others. The reader’s job is to figure out how it all works. Finally, we accompany the Sorcerer on an alluring tour of Infinity which includes George Cantor’s amazing mathematical insights. The tour (and the book) ends with Satan devising a diabolical puzzle for one of Cantor’s prize students—who outwits him! In sum: a devilish magician’s cornucopia of puzzles—a delight for every age and level of ability.

Could your pet help you with your math homework? Discover how amazing animals use number sense in this fun and fact-filled investigation. Animals know a lot more about numbers than you might think. Guppies can tell large numbers from small ones, hyenas can count, and chimpanzees can use Arabic numerals! Readers will get to know these extraordinary animals and more—and how scientists study their number sense. Each chapter wraps up with an interview with a researcher and a hands-on activity that give readers the chance to challenge their own math skills. Illustrations brimming with personality, along with colorful photos, sidebars, and splashy facts, make for an entertaining delve into these fascinating studies in this second book in the Extraordinary Animals series. A bibliography as well as an “Add to Your Knowledge” section at the back encourage more discovery.

In the American Mathematical Society's first-ever book for kids (and kids at heart), mathematician and author Richard Evan Schwartz leads math lovers of all ages on an innovative and strikingly illustrated journey through the infinite number system. By means of engaging, imaginative visuals and endearing narration, Schwartz manages the monumental task of presenting the complex concept of Big Numbers in fresh and relatable ways. The book begins with small, easily observable numbers before building up to truly gigantic ones, like a nonillion, a tredecillion, a googol, and even ones too huge for names! Any person, regardless of age, can benefit from reading this book. Readers will find themselves returning to its pages for a very long time, perpetually learning from and growing with the narrative as their knowledge deepens. Really Big Numbers is a wonderful enrichment for any math education program and is enthusiastically recommended to every teacher, parent and grandparent, student, child, or other individual interested in exploring the vast universe of numbers.

Did you know that you can measure the height of buildings with your own shadow? Or that when you shuffle a pack of cards, chances are that no other pack of cards has ever been in that order, ever? This highly accessible, dynamic book is packed with fun, unexpected and awesome ideas about maths. It mixes a fresh, modern illustration style with punchy, eye-opening facts and humorous anecdotes about famous mathematicians and their groundbreaking discoveries. Ideal for children aged 8+.

For years, Christian math books have looked basically like secular textbooks, with the addition of a Bible verse here or there. Here, at last, is a book to help you transform your math class and show your child God’s handiwork in math! Revealing Arithmetic will help you: Teach math from a biblical worldview. Worship the Lord in math. Help your child really understand concepts. Train your child to think mathematically. Transform everyday activities and objects into math lessons. Teach your child to use math as a real-life tool. Explore historical methods and symbols. This book is designed for homeschool parents needing a simple math guide to use alongside their curriculum and help them teach arithmetic to elementary students, older students needing a review of math basics before moving on to advanced mathematics, or Christian school or co-op teachers (or future teachers) wanting ideas on how to modify the curriculum to better reveal the truth of a Creator God.