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Flexagons Inside Out

Author : Les Pook

Publisher : Cambridge University Press

Page : 186 pages

File Size : 19,62 MB

Release : 2003

Category : Crafts & Hobbies

ISBN : 9780521525749

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Book Description

Flexagons are hinged polygons that have the intriguing property of displaying different pairs of faces when they are flexed. Workable paper models of flexagons are easy to make and entertaining to manipulate. Flexagons have a surprisingly complex mathematical structure and just how a flexagon works is not obvious on casual examination of a paper model. Flexagons may be appreciated at three different levels. Firstly as toys or puzzles, secondly as a recreational mathematics topic and finally as the subject of serious mathematical study. This book is written for anyone interested in puzzles or recreational maths. No previous knowledge of flexagons is assumed, and the only pre-requisite is some knowledge of elementary geometry. An attractive feature of the book is a collection of nets, with assembly instructions, for a wide range of paper models of flexagons. These are printed full size and laid out so they can be photocopied.



Serious Fun with Flexagons

Author : L.P. Pook

Publisher : Springer Science & Business Media

Page : 338 pages

File Size : 28,55 MB

Release : 2009-08-04

Category : Mathematics

ISBN : 9048125030

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Book Description

A flexagon is a motion structure that has the appearance of a ring of hinged polygons. It can be flexed to display different pairs of faces, usually in cyclic order. Flexagons can be appreciated as toys or puzzles, as a recreational mathematics topic, and as the subject of serious mathematical study. Workable paper models of flexagons are easy to make and entertaining to manipulate. The mathematics of flexagons is complex, and how a flexagon works is not immediately obvious on examination of a paper model. Recent geometric analysis, included in the book, has improved theoretical understanding of flexagons, especially relationships between different types. This profusely illustrated book is arranged in a logical order appropriate for a textbook on the geometry of flexagons. It is written so that it can be enjoyed at both the recreational mathematics level, and at the serious mathematics level. The only prerequisite is some knowledge of elementary geometry, including properties of polygons. A feature of the book is a compendium of over 100 nets for making paper models of some of the more interesting flexagons, chosen to complement the text. These are accurately drawn and reproduced at half full size. Many of the nets have not previously been published. Instructions for assembling and manipulating the flexagons are included.



Fantastic Flexagons

Author : Nick Robinson

Publisher : Racehorse for Young Readers

Page : 96 pages

File Size : 11,72 MB

Release : 2017-04-04

Category : Juvenile Nonfiction

ISBN : 9781944686109

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Book Description

Are you ready to flip out? Hexaflexagons are six-sided, flat paper models that can be made to reveal hidden images through a series of flexes and folds. Flexagons were first introduced in a column written by Martin Gardner for Scientific American. From there, people started folding and figuring out creative ways to craft these interesting origami-like objects. Included in this delightful book are instructions and material to create hexaflexagons, tri-tetra flexagons, cubes, flexacubes, and more! Flexing kaleidocycles are shapes formed by taking several tetrahedra (four-sided 3D shapes) and joining their edges to form a ring, which can then be rotated so that it turns inside out to display a multitude different colors, shapes, and designs! This book contains: • A brief introduction on the history of hexaflexagons • Instructions on how to make 13 different fun flexagon models • 40 pages of easy tear-out pages with pieces to assemble your hexaflexagons People are still discovering new ways to innovate with these enjoyable creations—so with some study and practice, you may be able to come up with a unique design and enter the pages of flexagon history! All you need to do is to cut out and assemble the various models in this book to create the most intriguing and entertaining designs available. Start folding your flexagons now!



The Mathematics of Various Entertaining Subjects

Author : Jennifer Beineke

Publisher : Princeton University Press

Page : 290 pages

File Size : 38,30 MB

Release : 2019-04-09

Category : Mathematics

ISBN : 0691183473

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Book Description

The history of mathematics is filled with major breakthroughs resulting from solutions to recreational problems. Problems of interest to gamblers led to the modern theory of probability, for example, and surreal numbers were inspired by the game of Go. Yet even with such groundbreaking findings and a wealth of popular-level books exploring puzzles and brainteasers, research in recreational mathematics has often been neglected. The Mathematics of Various Entertaining Subjects brings together authors from a variety of specialties to present fascinating problems and solutions in recreational mathematics. Contributors to the book show how sophisticated mathematics can help construct mazes that look like famous people, how the analysis of crossword puzzles has much in common with understanding epidemics, and how the theory of electrical circuits is useful in understanding the classic Towers of Hanoi puzzle. The card game SET is related to the theory of error-correcting codes, and simple tic-tac-toe takes on a new life when played on an affine plane. Inspirations for the book's wealth of problems include board games, card tricks, fake coins, flexagons, pencil puzzles, poker, and so much more. Looking at a plethora of eclectic games and puzzles, The Mathematics of Various Entertaining Subjects is sure to entertain, challenge, and inspire academic mathematicians and avid math enthusiasts alike.



Hexaflexagons and Other Mathematical Diversions

Author : Martin Gardner

Publisher : American Mathematical Soc.

Page : 200 pages

File Size : 40,51 MB

Release : 2020-10-05

Category : Mathematics

ISBN : 1470463520

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Book Description

Martin Gardner's Mathematical Games columns in Scientific American inspired and entertained several generations of mathematicians and scientists. Gardner in his crystal-clear prose illuminated corners of mathematics, especially recreational mathematics, that most people had no idea existed. His playful spirit and inquisitive nature invite the reader into an exploration of beautiful mathematical ideas along with him. These columns were both a revelation and a gift when he wrote them; no one--before Gardner--had written about mathematics like this. They continue to be a marvel. This volume, originally published in 1959, contains the first sixteen columns published in the magazine from 1956-1958. They were reviewed and briefly updated by Gardner for this 1988 edition.



Cool Flexagon Art: Creative Activities that Make Math & Science Fun for Kids!

Author : Anders Hanson/Elissa Mann

Publisher : ABDO

Page : 34 pages

File Size : 19,35 MB

Release : 2014-09-01

Category : Juvenile Nonfiction

ISBN : 1617838217

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Book Description

Discover secret math and science tricks to creating art! This title introduces young readers to the sciences, with a creative twist. Math and science educational pages are interspersed with cool flexagon activities that offer practical applications of the information students learn in class. All activities include how-to photos, easy instructions, and clear explanations. Reinforce Common Core Standards in reading, math, and science, while making cool art projects, from a transformer star to a 3-D flexagon. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of ABDO Publishing Company.



Martin Gardner in the Twenty-First Century

Author : Michael Henle

Publisher : American Mathematical Soc.

Page : 312 pages

File Size : 40,49 MB

Release : 2012-12-31

Category : Education

ISBN : 0883859130

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Book Description

Martin Gardner enormously expanded the field of recreational mathematics with the Mathematical Games columns he wrote for Scientific American for over 25 years and the more than 70 books he published. He also had a long relationship with the Mathematical Association of America, publishing articles in MAA journals right up to his death in 2010. This book collects the articles Gardner wrote for the MAA in the twenty-first century, together with other articles the MAA published from 1999 to 2012 that spring from and comment on his work.



Math Horizons

Author :

Publisher :

Page : 156 pages

File Size : 45,36 MB

Release : 2005

Category : Mathematics

ISBN :

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Book Description



Cut and Fold Techniques for Promotional Materials

Author : Paul Jackson

Publisher : Laurence King Publishing

Page : 128 pages

File Size : 10,69 MB

Release : 2013-03-04

Category : Crafts & Hobbies

ISBN : 1780675038

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Book Description

Cut and Fold Techniques for Promotional Materials is a unique collection of over 40 attention-grabbing cut-and-fold designs that when printed and illustrated form memorable give-aways to promote and advertise services and products. The book provides a one-stop source for novelty promotional materials, many appearing in print for the first time. Some designs are interactive toys that turn inside out or reveal hidden faces when played with, others are more practical, offering ingenious ways to fold-up letters, brochures and posters, or to create novelty envelopes and leaflets. All the designs will enhance a message or presentation, grabbing attention in ways that simple printing can never achieve. Following the elegant, easy-to-follow style of Paul Jackson’s other titles for Laurence King, Cut and Fold Techniques for Promotional Materials is an essential resource for marketing professionals and design students, and an inspirational guide to anyone looking to enhance the presentation of their product or service.



A Mathematical Tapestry

Author : Peter Hilton

Publisher : Cambridge University Press

Page : pages

File Size : 48,24 MB

Release : 2010-07-22

Category : Mathematics

ISBN : 1139489070

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Book Description

This easy-to-read 2010 book demonstrates how a simple geometric idea reveals fascinating connections and results in number theory, the mathematics of polyhedra, combinatorial geometry, and group theory. Using a systematic paper-folding procedure it is possible to construct a regular polygon with any number of sides. This remarkable algorithm has led to interesting proofs of certain results in number theory, has been used to answer combinatorial questions involving partitions of space, and has enabled the authors to obtain the formula for the volume of a regular tetrahedron in around three steps, using nothing more complicated than basic arithmetic and the most elementary plane geometry. All of these ideas, and more, reveal the beauty of mathematics and the interconnectedness of its various branches. Detailed instructions, including clear illustrations, enable the reader to gain hands-on experience constructing these models and to discover for themselves the patterns and relationships they unearth.