All the games your brain can handle.

A great way to have fun and build brain power, Brain Teasers offers a variety of games to delight and challenge even the most advanced puzzler. Brain Teasers shows off some outrageously fun new mindbenders, like anasearches (a combination of an anagram, a crossword, and a word search), numberlockers (think of a crossword puzzle with numbers instead of words), and alphabetics (a miniature crossword puzzle that uses each letter of the alphabet exactly once). Perfect for anyone who sits down with the New York Times crossword puzzle every morning or works through Sudoku puzzles on the way home, this book is guaranteed to excite your mind and jump-start your brain. Also included is an interactive CD, which showcases games from each section of the book.

300 color.

This entertaining book of mathematical days exercises the brain with confounding puzzles, intriguing math problems, and, of course, detailed solutions to all the conundrums. Readers will enjoy 366 days' worth of stimulating math.

Hooked on Su Doku? Then get ready for Kakuro with 200 challenging new puzzles from the creator of the bestselling Big Book of Su Doku series.

Hot on the heels of Su Doku comes Kakuro, the latest Japanese puzzle craze. Like Su Doku, Kakuro is solved by using logic—with a twist. Taking puzzling a step further, Kakuro requires simple adding skills as well as reasoning. But don't worry, you don't have to be a math whiz to enjoy Kakuro. If you can do sums of single digits in your head, you're all set. The Big Book of Kakuro features 200 brand new puzzles graded for levels of difficulty—including unique Su Doku-Kakuro hybrid puzzles—and valuable tips and advice on how to solve Kakuro number grids.

Many of the most important mathematical concepts were developed from recreational problems. This book uses problems, puzzles, and games to teach students how to think critically. It emphasizes active participation in problem solving, with emphasis on logic, number and graph theory, games of strategy, and much more. Answers to Selected Problems. Index. 1980 ed.

This richly illustrated book discusses non-Euclidean geometry and the hyperbolic plane in an accessible way. The author provides instructions for how to crochet models of the hyperbolic plane, pseudosphere, and catenoid/helicoids. With this knowledge, the reader has a hands-on tool for learning the properties of the hyperbolic plane and negative curvature. The author also explores geometry and its historical connections with art, architecture, navigation, and motion, as well as the history of crochet, which provides a context for the significance of a physical model of a mathematical concept that has plagued mathematicians for centuries.

Grab a pencil. Relax. Then take off on a mind-boggling journey to the ultimate frontier of math, mind, and meaning as acclaimed author Clifford Pickover, Dorothy, and Dr. Oz explore some of the oddest and quirkiest highways and byways of the numerically obsessed. The thought-provoking mysteries, puzzles, and problems range from zebra numbers and circular primes to Legion's number--a number so big that it makes a trillion pale in comparison. The strange mazes, bizarre consequences, and dizzying arrays of logic problems entertain readers at all levels of mathematical sophistication. The tests devised by enigmatic Dr. Oz to assess human intelligence will tease the brain of even the most avid puzzle fan. They feature a host of mathematical topics: geometry and mazes, sequences, series, sets, arrangements, probability and misdirection, number theory, arithmetic, and even several problems dealing with the physical world. With numerous illustrations, this is an original, fun-filled, and unusual introduction to numbers and their role in creativity, computers, games, practical research, and absurd adventures that teeter on the edge of logic and insanity. Clifford A. Pickover is the author of over twenty highly acclaimed books on such topics as computers and creativity, art, mathematics, black holes, human behavior and intelligence, time travel, alien life, and science fiction. Among his books are Computers, Pattern, Chaos, and Beauty (St. Martin's Press, 1990), Wonders of Numbers (Oxford University Press, 2000), Dreaming the Future (Prometheus, 2001), The Zen of Magic Squares, Circles, and Stars (Princeton University Press, 2001), The Stars of Heaven (Oxford University Press, 2001), The Paradox of God and the Science of Omniscience (Palgrave, 2002). A Ph.D. graduate of Yale University, he is a prolific inventor with dozens of patents, the associate editor for several journals, the author of colorful puzzle calendars, and puzzle contributor to adult and children's magazines. Pickover's computer graphics have been featured on the cover of many popular magazines and on T.V. shows.

This richly illustrated book provides step-by-step folding instructions for the construction of over 40 modular origami creations. The author describes how to fold the modules and how to use them as building blocks to construct larger polyhedral models. These beautiful designs are elaborate three-dimensional geometric patterns, some resembling stars or flowers. One chapter focuses on models representing mutually intersecting planes in the shape of stars, hexagons, etc. Some of the models are advanced variations of favorite models from the author s previous book, Marvelous Modular Origami. The folding diagrams are clear, crisp, and easy to follow and are accompanied by color photographs of brilliant finished models. The book is aimed at intermediate folders, but the origami basics included at the start of the book make it accessible to beginners.

Famed puzzle expert explains math behind a multitude of mystifying tricks: card tricks, stage "mind reading," coin and match tricks, counting out games, geometric dissections, etc. Probability, sets, theory of numbers clearly explained. Also, more than 400 tricks, guaranteed to work, that you can do. 135 illustrations.

Beautifully illustrated, and with complete patterns and the mathematics behind each project, this book successfully connects the worlds of mathematics and the fiber arts. Each chapter covers a different mathematical paper and corresponding needlework project and includes mathematical explanations, needlework instructions, educational material, and specific projects to demonstrate the principles discussed.