Origami Design Secrets : Mathematical Methods for an Ancient Art, Second Edition
Robert J. (http://www.langorigami.com, Alamo, California, USA) Lang
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Taking Sudoku Seriously : The Math Behind the World's Most Popular Pencil Puzzle
Jason Rosenhouse
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From Computing to Computational Thinking
Paul S. (Kent State University, OH, USA) Wang
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How to Fall Slower Than Gravity : And Other Everyday (and Not So Everyday) Uses of Mathematics and Physical Reasoning
Paul Nahin
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Professor Higgins's Problem Collection
Peter M. Higgins
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Professor Higgins's Problem Collection
Peter M. Higgins
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Problem Solving Through Recreational Mathematics
Bonnie Averbach
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Math Games : Skill-Based Practice for Kindergarten
Ted H. Hull
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Math Games : Skill-Based Practice for First Grade
Ted H. Hull
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Math Games : Skill-Based Practice for Second Grade
Ted H. Hull
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Math Games : Skill-Based Practice for Third Grade
Ted H. Hull
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Math Games : Skill-Based Practice for Fourth Grade
Ted H. Hull
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Math Games : Skill-Based Practice for Fifth Grade
Ted H. Hull
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Math Games : Skill-Based Practice for Sixth Grade
Ted H. Hull
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From Computing to Computational Thinking
Paul S. (Kent State University, OH, USA) Wang
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One Hundred Problems in Elementary Mathematics
Hugo Steinhaus
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Hidden Connections and Double Meanings
David Wells
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Mathematical Wizardry for a Gardner
Ed Pegg Jr
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Puzzlers' Tribute : A Feast for the Mind
David Wolfe
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A Gardner's Workout : Training the Mind and Entertaining the Spirit
Martin Gardner
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