[PDF] The Abacus eBook

Author : Jesse Dilson
Publisher : St. Martin's Griffin
Page : 145 pages
File Size : 39,31 MB
Release : 2013-07-30
Category : Mathematics
ISBN : 1466850132

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The abacus is as useful and effecient a machine today as it was when it was first created centures ago. Whether you're an expert in the latest computer technology or you're mastering arithmetic and word problems for the first time, it won't take long to learn the basics (and even the not-so-basics) of adding, subtracting, multiplying, and dividing on this ingenious and fun-to-use mathematical tool.

Author : Simson L Garfinkel
Publisher : Union Square + ORM
Page : 739 pages
File Size : 13,9 MB
Release : 2019-01-15
Category : Computers
ISBN : 1454926228

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An illustrated journey through 250 milestones in computer science, from the ancient abacus to Boolean algebra, GPS, and social media. With 250 illustrated landmark inventions, publications, and events—encompassing everything from ancient record-keeping devices to the latest computing technologies—The Computer Book takes a chronological journey through the history and future of computer science. Two expert authors, with decades of experience working in computer research and innovation, explore topics including: the Sumerian abacus * the first spam message * Morse code * cryptography * early computers * Isaac Asimov’s laws of robotics * UNIX and early programming languages * movies * video games * mainframes * minis and micros * hacking * virtual reality * and more “What a delight! A fast trip through the computing landscape in the company of friendly tour guides who know the history.” —Harry Lewis, Gordon McKay Professor of Computer Science, Harvard University

Author : Katie Saunders
Publisher : little bee books
Page : 0 pages
File Size : 21,45 MB
Release : 2015-02-03
Category : Juvenile Nonfiction
ISBN : 9781499800050

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Little ones will learn to count with this Baby Steps abacus book that comes with secure, movable beads that slide across the pages! Baby Steps is a well-established, popular series of titles which features the bright and engaging artwork of Katie Saunders. COUNTING FUN! introduces the early learning concept of counting, with the aid of bright, tactile abacus beads. Simple text on each page prompts little ones to move the number of beads that corresponds to that page. This is an interactive treat that babies will love!

Author : Peter Duus
Publisher : Univ of California Press
Page : 508 pages
File Size : 37,32 MB
Release : 1995
Category : History
ISBN : 0520213610

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"This is a major historical work that, in the field of Japanese imperialism, will set a standard for careful and comprehensive analysis. The Abacus and the Sword is the handiwork of a master historian."—Mark R. Peattie, author of Nan'yo: The Rise and Fall of the Japanese in Micronesia, 1885-1945 "This book . . . deserves a wide readership, especially among East Asia history specialists, for it represents difficult and complex scholarship at its best. . . . It is clear from an analysis of his documentation that he put solid study into the Japan-Korea relationship problem, one of the most complex in modern East Asian history—the equivalent perhaps of the English-Irish relationship in Western History. . . . This book is . . . well worth reading, not only for East Asian specialists but for anyone fascinated by the mysteries of history." Hilary Conroy, American Academy of Political Science

Author : Takashi Kojima
Publisher : Tuttle Publishing
Page : 124 pages
File Size : 21,6 MB
Release : 2012-07-09
Category : Mathematics
ISBN : 1462903657

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This handy guide will take abacus users from beginner to master level in a very short time. Though the Japanese abacus may appear mysterious or even primitive, this intriguing tool is capable of amazing speed and accuracy. it is still widely used throughout the shop and markets of Asia and its popularity shows no sign of decline. This volume is designed for the student desiring a greater understanding of the abacus and its calculative functions. The text provides thorough explanations of the advanced operations involving negative numbers, decimals, different units of measurement, and square roots. Diagrams illustrate bead manipulation, and numerous exercises provide ample practice. Concise and easy-to-follow, this book will improve your abacus skills and help you perform calculations with greater efficiency and precision.

Author : Laurence Sigler
Publisher : Springer Science & Business Media
Page : 736 pages
File Size : 43,22 MB
Release : 2012-12-06
Category : Mathematics
ISBN : 1461300797

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First published in 1202, Fibonacci’s Liber Abaci was one of the most important books on mathematics in the Middle Ages, introducing Arabic numerals and methods throughout Europe. This is the first translation into a modern European language, of interest not only to historians of science but also to all mathematicians and mathematics teachers interested in the origins of their methods.

Author : Nancy Marie Brown
Publisher : Basic Books
Page : 330 pages
File Size : 37,9 MB
Release : 2010-12-07
Category : History
ISBN : 0465022952

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The medieval Catholic Church, widely considered a source of intolerance and inquisitorial fervor, was not anti-science during the Dark Ages -- in fact, the pope in the year 1000 was the leading mathematician and astronomer of his day. Called "The Scientist Pope," Gerbert of Aurillac rose from peasant beginnings to lead the church. By turns a teacher, traitor, kingmaker, and visionary, Gerbert is the first Christian known to teach math using the nine Arabic numerals and zero. In The Abacus and the Cross, Nancy Marie Brown skillfully explores the new learning Gerbert brought to Europe. A fascinating narrative of one remarkable math teacher, The Abacus and the Cross will captivate readers of history, science, and religion alike.

Author : Sai Speed Math Academy
Publisher :
Page : 92 pages
File Size : 15,66 MB
Release : 2014-06-01
Category :
ISBN : 9781941589007

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Abacus Mind Math Instruction Book Level 1 (for teachers and parents): Goal for Level - 1 Addition - without carryover problems Subtraction - without borrowing problems Topics covered: Basics of abacus How to do mind math How to do dictation 5 exchange concepts explained in detail with examples Skill building activities explained Instruction book includes: Examples for each concept with detailed pictures and steps by step instruction on how to calculate and what to tell your students while teaching. Theory behind the formulas explained in simple terms. Over 380 sample problems for teachers and parents to practice the concepts. These sample problems can be used to introduce your child to the concept with effortless ease. Instruction on how to effectively introduce children to mind math with ways to build the skill. Dictation - a very important aspect of abacus training is explained with useful ideas to achieve. Skill building activities are explained that help you train your child. Common mistakes made by students with ways to help them avoid making these mistakes are outlined. Corresponding practice work for children is given in the two workbooks that are sold separately under the following titles. " Abacus Mind Math Level 1 Workbook 1: Excel at Mind Math with Soroban, a Japanese Abacus Abacus Mind Math Level 1 Workbook 2: Excel at Mind Math with Soroban, a Japanese Abacus " Soroban, the Japanese abacus is a very useful visual tool that helps children 'see' numbers as beads while calculating. Soroban perfectly fits with the base 10 number system used at present and provides a systematic method (formulas) to follow while calculating both on the tool and in the mind. Mastering of this tool will enhance your child's basic math comprehension, speed and accuracy. In general, when children practice mind math, they get a very important sense of achievement that helps raise their confidence as students. You can also see an improvement in their concentration, tenacity, memory power and listening skills.

Author : Abacus Foundation
Publisher : Createspace Independent Publishing Platform
Page : 214 pages
File Size : 43,65 MB
Release : 2017-10-02
Category :
ISBN : 9781977830364

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A Complete Abacus Mind Math Instruction and Workbook for addition and subtraction, the book includes: Instructions on how to effectively introduce children to mind math with ways to build their skill. Integrated workbook work is given after each instruction section. Examples are shown for each section with clear graphics on how to proceed. The book explains how to calculate both on the abacus and in the mind. The Soroban has for a long time been used as an instrument to fast track children into a better understanding of math. Abacus Mind Math with its methodical approach: 1. Strengthens mental visualization 2. Sharpens concentration 3. Improves academic results 4. Enforces problem solving techniques These attributes combine to boost the confidence of the child throughout their learning years. This useful and impressive skill would be an asset for anyone.

Author : Daniel Rosen
Publisher : Rowman & Littlefield
Page : 241 pages
File Size : 22,9 MB
Release : 2015-08-21
Category : Political Science
ISBN : 1442240857

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Until recently a lack of precision around China’s economic size was taken for granted but caused little lost sleep: room to expand and the pace of growth were self-evident, and everything beyond that was academic for most purposes. But today the pace and even direction of China’s growth is prone to volatility, and the nation is sizable enough to cause global disruption. This study reassesses China’s nominal economic size from the bottom up. It compares China’s practices with international standards and reviews the long-standing arguments about Chinese economic statistics to separate real concerns from distractions.