02303    a2200409   4500001001100000005001700011008004200028020002200070037003700092040000700129041000800136072001500144072001500159072001500174072001400189072001500203072001300218072001300231072001300244072001200257072001300269072002100282072002100303072002100324072002100345072002100366072001800387100001800405245006400423250000600487260003500493300001000528520129700538700002101835700002201856999001501878103256047920250328151429.0250324022025xx        758           eng    a9781032560472qBB  bTaylor & FranciscGBP 155.00fBB  a01  aeng7 aPBM2thema7 aPBP2thema7 aPBW2thema7 aAB2thema7 aPBC2thema7 aPBM2bic7 aPBP2bic7 aPBW2bic7 aAB2bic7 aPBC2bic7 aMAT0250002bisac7 aCRA0230002bisac7 aMAT0120002bisac7 aMAT0380002bisac7 aMAT0000002bisac7 a793.742bisac1 aScott Sherman10aSecret World of FlexagonsbFascinating Folded Paper Puzzles  a1  bA K Peters/CRC Pressc20250320  a314 p  bThe hexaflexagon is a folded paper strip of colored triangles that has long delighted people with how it “magically” changes its appearance when “flexed”. This hands-on, comprehensive book goes beyond the hexaflexagon, the standard version of this folded puzzle, exponentially expanding the barely explored field of flexagons as it brings new options and fresh insights to light. ● Learn over a dozen different flexes, and make dozens of different flexagons with the aid of step-by-step illustrated directions and templates to copy and print. ● Delve into the internal structure of flexagons and discover a universal way to describe and predict their behavior. ● Learn how to create your own custom flexagons with a special computer program. ● Understand how flexagons are connected to group theory, computer science, and topology. ● Have fun decorating flexagons and make flexagon books, puzzles, pop-ups, mazes, and more. Written in a clear, easy-to-understand, and conversational style and enhanced with challenges and tips to broaden your flexagon skills and spark creativity, The Secret World of Flexagons: Fascinating Folded Paper Puzzles is a must for flexagon enthusiasts, teachers, students, libraries, mathematicians, and everyone who loves to solve a good puzzle.1 aYossi Elran4A011 aAnn Schwartz4A01  c8792d8792