A prize of one million dollars was offered to anyone who could unravel it, but Perelman declined the winnings, and in doing so inspired journalist Masha Gessen to tell his story. Drawing on interviews with Perelman’s teachers, classmates, coaches, teammates, and colleagues in Russia and the United States—and informed by her own background as a math whiz raised in Russia—Gessen uncovered a mind of unrivaled computational power, one that enabled Perelman to pursue mathematical concepts to their logical (sometimes distant) end. But she also discovered that this very strength turned out to be Perelman's undoing and the reason for his withdrawal, first from the world of mathematics and then, increasingly, from the world in general.

    In the paper, Wigner observed that the mathematical structure of a physical theory often points the way to further advances in that theory and even to empirical predictions.

    Beginning with the ancient practice of bartering, the Cat explains various forms of money used in different cultures, from shells, feathers, leather, and jade to metal ingots to coins (including the smallest—the BB-like Indian fanam—and the largest—the 8-foot-wide, ship-sinking limestone ones from the Islands of Yap!), to the current king of currency, paper. Also included is a look at banking, from the use of temples as the first banks to the concept of gaining or paying interest, and a step-by-step guide to minting coins. A fascinating introduction is bound to change young reader’s appreciation for change!

    "In Jonas' latest tour de force of trompe l'oeil, each double-spread serves twice: as in Round Trip, the book is reversed for a return journey, in this case from forest to seaside....A rain cloud becomes a flock of ducks, a ferry upends to a restaurant....Fascinating."--Kirkus Reviews.

    Find out how to combine colours and textures to create different themes, devise intricate plans for complex builds, and discover secret hacks to use blocks in clever ways.With insider info and tips from the experts at Mojang, this is the definitive guide to creating in Minecraft.Perfect for Minecraft fans 8+.Collect all the new Minecraft Guidebooks:Minecraft Guide to ExplorationMinecraft Guide to RedstoneMinecraft Guide to the Nether and the EndCollect all of the official Minecraft series to become the best Minecrafter you can be: Minecraft BlockopediaMinecraft: Exploded Builds: Medieval FortressMinecraft The Survivors' Book of SecretsMinecraft Survival Tin Minecraft is a multi-platform block-based gaming sensation available on Xbox, PlayStation, PC and mobile devices. Whether you're in Creative, Survival or Hardcore Mode, the official Mojang-approved Minecraft books contain all the advice you need to survive and thrive.

    Bell, a leading figure in mathematics in America for half a century. Men of Mathematics accessibly explains the major mathematics, from the geometry of the Greeks through Newton's calculus and on to the laws of probability, symbolic logic, and the fourth dimension. In addition, the book goes beyond pure mathematics to present a series of engrossing biographies of the great mathematicians -- an extraordinary number of whom lived bizarre or unusual lives. Finally, Men of Mathematics is also a history of ideas, tracing the majestic development of mathematical thought from ancient times to the twentieth century. This enduring work's clear, often humorous way of dealing with complex ideas makes it an ideal book for the non-mathematician.

    It is amazing how much history, biographical material, and music is included in this book! Sebastian Bach, The Boy from Thuringia is the first complete work on the life of Bach ever written for children. Every important incident is mentioned and every detail of the story is true. It is filled with vivid descriptions of Bach s childhood: how he sat up many nights and copied music by the light of the moon, and how he walked two hundred miles to a choir school at Luneburg. Then his adult life: how he helped his wife Magdalena put the twenty children to bed every night; how he spread brown bread with honey for them to eat every afternoon; and how he taught them all to sing and play different musical instruments. The music reproduced here represents all of the different kinds of music that Bach ever wrote. A child can never really know music unless he knows Bach, for his contribution is the foundation and structural basis of all music. But it is more the human side of this book that will make it live, for in it the great master breathes. All who read it will know him not only as a musical genius, but also as an eager child, an affectionate father, and a lovable human being."

    Along with Katrina Kahler's: My First Book 1 and The Christmas Stories Book1; this sight words book has very simple text, repeated words and pictures to assist your child's prediction skills and comprehension. It is perfect for beginner readers aged from 2 to 5. This book has 7 stories including: Are You My Friend, Are You A Monster, All About Santa, Do You Want To Play, If You Love Your Dog, The Best Playground Ever and My First Day At Kindy. Sight word flashcards and activities follow each book. This book has been written by a professional teacher who has taught thousands of children to read over the past 30 years. You will be giving your child a great start to learning how to read when you buy this book.

    Watt, track down a missing comb in this Level 2 Ready-to-Read story perfect for beginning readers!Hamster Holmes and Dr. Watt’s friend Ouchy the Porcupine lost his favorite comb! He thought he left it in the park, but when he went back to look for it, the comb was nowhere to be found. Can Hamster Holmes and Dr. Watt help Ouchy solve the mystery?

    . . Amelia Bedelia!Amelia Bedelia visits her uncle's dude ranch and makes herself at home on the range, getting all tied up (by her own lasso) and stopping a stampede (with only her own two hands)!The West sure is wild when Amelia Bedelia comes to town!

    The easy kind, practiced by ants, shrimp, Welsh corgis -- and us -- is innate. What innate calculating skills do we humans have? Leaving aside built-in mathematics, such as the visual system, ordinary people do just fine when faced with mathematical tasks in the course of the day. Yet when they are confronted with the same tasks presented as "math," their accuracy often drops. But if we have innate mathematical ability, why do we have to teach math and why do most of us find it so hard to learn? Are there tricks or strategies that the ordinary person can do to improve mathematical ability? Can we improve our math skills by learning from dogs, cats, and other creatures that "do math"? The answer to each of these questions is a qualified yes. All these examples of animal math suggest that if we want to do better in the formal kind of math, we should see how it arises from natural mathematics. From NPR's "Math Guy" -- The Math Instinct will provide even the most number-phobic among us with confidence in our own mathematical abilities.

    Take a journey through the fascinating story of fractions, numbers, patterns, and shapes in order to better understand the complex world we live in.Continuing the "Big Ideas" series' trademark combination of authoritative, clear text and bold graphics to chart the development of maths through history, the book explores and explains some of the most complex and fascinating mathematical subjects. Delve into everything from the mathematical ideas and inventions of the ancient world such as the first number systems, magic squares, and the Chinese abacus, through to the developments in mathematics during medieval and Renaissance Europe, to the rise of group theory and cryptography more recently.This diverse and inclusive account of mathematics will have something for everybody: for those interested in the maths behind world economies, secret spies, modern technology and plenty more, taking readers around the world from Babylon to Bletchley Park. Tracing maths through the Scientific Revolution to its 21st-century use in computers, the internet, and AI, The Maths Book uses an innovative visual approach to make the subject accessible to everyone, casual readers and students alike.

    But Julio and his friends know it’s time to get serious when the class begins preparing for the big statewide test at the end of the year. Just thinking about it is enough to give anybody a stomachache!Julio and his best friend, Lucas, are going to try every superstition in the book to make sure they pass. They’ll wear their underwear inside out, use brand-new pencils, and even—gulp—study. But when test day comes, Julio finds out there are some surprises no one can prepare for!Whether one has read about Julio and Lucas and their other classmates before in class clown and class president or this is the first meeting, here is a story that will strike a familiar chord. With the warmth and realism she is known for, beloved author Johanna Hurwitz brings us the hardships and humor of Julio Sanchez’s fourth-grade year.

    The Secret Lake is Karen's bestselling time travel mystery adventure story, enjoyed by over 7,000 readers. Karen has been praised by teachers, librarians, parents and reading charities for getting the most reluctant readers turning the pages. Full books available to order in print and/or for Kindle once the kids have had their say :) Order with one click for free today - we think the kids and preteens will be back for more...!

    A lecture class taught by Wittgenstein, however, hardly resembled a lecture. He sat on a chair in the middle of the room, with some of the class sitting in chairs, some on the floor. He never used notes. He paused frequently, sometimes for several minutes, while he puzzled out a problem. He often asked his listeners questions and reacted to their replies. Many meetings were largely conversation. These lectures were attended by, among others, D. A. T. Gasking, J. N. Findlay, Stephen Toulmin, Alan Turing, G. H. von Wright, R. G. Bosanquet, Norman Malcolm, Rush Rhees, and Yorick Smythies. Notes taken by these last four are the basis for the thirty-one lectures in this book. The lectures covered such topics as the nature of mathematics, the distinctions between mathematical and everyday languages, the truth of mathematical propositions, consistency and contradiction in formal systems, the logicism of Frege and Russell, Platonism, identity, negation, and necessary truth. The mathematical examples used are nearly always elementary.