This second edition of Alexander Soifer’s How Does One Cut a Triangle? demonstrates how different areas of mathematics can be juxtaposed in the solution of a given problem. The author employs geometry, algebra, trigonometry, linear algebra, and rings to develop a miniature model of mathematical research.

• The perfect resource for quilters of every level to turn fat quarter bundles (a pre-assorted collection of coordinating fabric scraps) into gorgeous quilts • Contains 12 beautiful step-by-step projects and patterns all using convenient, color-coordinated bundles of fabric • Includes insightful details on how to choose fabrics and colors to use in your quilt projects, as well as essential quilting techniques • Stephanie Soebbing, author of the best-selling Super Simple Quilts for the Modern Home, is the owner of Quilt Addicts Anonymous and the Fat Quarter Shop where she provides a fat quarter subscription service for quilters

· On trend contemporary projects that modernize traditional blocks, embrace minimalism, and rely on bold colors and contrast · Contains 12 modern quilt patterns that are great for any level sewer · Build skills with step-by-step instruction and photography, and tips on piecing, hand or machine appliqué and quilting, and finishing · Color theory, fabric selection, and elements of design are all clearly explained · Author Stephanie Soebbing is a savvy social media marketer with an e-commerce site, weekly podcast, and 40,000+ online followers

Pat Sloan--popular teacher, designer, and online radio-show host--teaches all you need to know to create triangles with ease. Take your skills to the next level with this second book in her beginner-friendly "Teach Me" series. You'll discover 13 different ways to sew triangles--at least one method will be just right for you! Learn to successfully sew half-square and quarter-square triangles, 60-degree triangles, flying geese, and more Gain confidence and get all your questions answered--Pat shares tons of tips throughout Spotlight triangles in 12 exciting patterns, ranging from small wall hangings to lap quilts to a bed-sized design

This updated printing of the first edition of Colorado Mathematical Olympiad: the First Twenty Years and Further Explorations gives the interesting history of the competition as well as an outline of all the problems and solutions that have been created for the contest over the years. Many of the essay problems were inspired by Russian mathematical folklore and written to suit the young audience; for example, the 1989 Sugar problem was written in a pleasant Lewis Carroll-like story. Some other entertaining problems involve olde Victorian map colourings, King Authur and the knights of the round table, rooks in space, Santa Claus and his elves painting planes, football for 23, and even the Colorado Springs subway system.

Ready to take the triangle challenge? Choose from 70 pieced modern triangle blocks and 11 exquisite quilts that wow! Fourth-generation quilter Rebecca Bryan is back—this time with beautiful 3-sided blocks sewn from pieced stripes, chevrons, curves, and more. A dedicated graphic design chapter will help you choose a winning color palette, play up unexpected elements, and achieve balance and symmetry. Grab your favorite ruler and the full-size block templates to create equilateral, isosceles, and right triangles with ease. With no tricky seams, these sampler blocks are perfect to mix and match.