Abacus | Saunpan | Gintara

INTRODUCTION

What is Abacus The Abacus (suanpan in Chinese), also called a counting frame, is a calculating tool that was invented in ancient China and in use for centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. The Soroban is an abacus developed in Japan. It is derived from the Chinese suanpan, imported to Japan around 1600. Like the suanpan, the soroban is still used today, despite the proliferation of practical and affordable pocket electronic calculators. Types of Abacus

Mental Abacus The abacus system of mental calculation is a system where users mentally visualize an abacus to do calculations. No physical abacus is used; only the answers are written down. Calculations can be made at great speed in this way. For example, in the Flash Anzan event at the All Japan Soroban Championship, champion Takeo Sasano was able to add fifteen three-digit numbers in just 1.7 seconds. This system is being propagated in China, Singapore, South Korea, Thailand, Malaysia, and Japan. Mental calculation is said to improve mental capability, increases speed of response, memory power, and concentration power. Many veteran and prolific abacus users in China, Japan, South Korea, and others who use the abacus daily, naturally tend to not use the abacus anymore but perform calculations by visualizing the abacus. This was verified when the right brain measured heightened EEG activity when calculating and compared with non-veterans who were using the abacus to perform calculations. The standard abacus can be used to perform addition, subtraction, division, and multiplication; the abacus can also be used to extract square-roots and cubic roots. Introduction to Abacus

The Abacus (or Soroban as it is called in Japan) is an ancient mathematical instrument used for calculations. When using an Abacus always work numbers going from left to right.  The Parts of an Abacus ■ Positions The lower beads each having a value of one and upper beads each having a value of five. Each set of beads on each rod represents "units", "tens", "hundreds", etc.  ■ Cleared Position To reset the Abacus into cleared position or zero, sweep a finger across the beam from right to left or pressing the clearing device.  ■ Lower Beads When the lower beads are moved toward the beam (when you move lower beads up), it indicates addition.  When the lower beads are moved away from the beam (when you move the lower beads down), it indicates subtraction.  ■ Upper Beads When the upper beads are moved toward the beam (when you move upper beads down), it indicates an addition of 5.  When the upper beads are moved away from the beam (when you move the upper beads up), it indicates a subtraction of 5. 

Benefits of learning Abacus ☆ Improvement in speed and accuracy in calculation, reading and writing. ☆ improvement in mental arithmetic skills ☆ numbers will not be abstract my more and fear of numbers goes away ☆ improvement in academic performance and learning process is fun ☆ enhances confidence and changes the outlook for better ☆ academic scores improves in all subjects ☆ master fast and accurate and counting skills enhanced thinking ability response and memory power ☆ insteel construction and effective learning methods, develop self confidence ☆ Abacus in the brain in focus on complete braindevelopment it also helps to remove the learning blocks ☆ when will listen to a conversation, the left brain Concentrate on what is said (the content), while the right brain pickup how it was said (the emotions) Process to do Calculation in ABACUS