Abacus Name: 205#17-digit Wooden Abacus with Clear-up Device for Financial Calculations - Bank Special

Abacus size: length 39cm * width 9.5cm * height 2.2cm

Abacus packaging: Paper bag packaging, 50 sides in a case

Abacus single weight: 0.5kg per set

Dear friends, please note:

This product is very cost-effective, as the beads are manually sorted by hand. There might be some small cracks or small gaps in some beads, but they do not affect normal use. Such issues are not grounds for exchanges or returns. If you are concerned, please do not purchase!!!

This is a very practical teaching aid for the family. Babies can recognize individual, ten, hundred, thousand, and ten thousand, making it an ideal teaching aid for parents to initiate their children's education..Abacus is also a simple and convenient calculation tool invented by the Han ethnic group. Due to the convenience and speed of abacus operations, it has been widely used as a calculation tool for thousands of years among the Han people, and even the most advanced electronic calculators cannot completely replace the role of the abacus. 

In layman's terms, mental arithmetic is essentially doing mental calculations. Based on the practice of arithmetic, mental arithmetic involves fully internalizing the arithmetic process, thereby completely eliminating the external actions of actual arithmetic. This internalized "mental abacus" (also known as the "virtual abacus") allows calculations such as addition, subtraction, multiplication, and division to be performed in the mind. Mental arithmetic is characterized by group calculations, which can be particularly challenging for young children to master large numbers. This method helps them better understand the concept of numbers and overcome the tendency to count individually. The "five-step, ten-step system" of mental arithmetic significantly reduces the difficulty of carrying. The operational model of mental arithmetic is also conducive to improving children's computational abilities.

Should we learn mental arithmetic in the age of computers?

Some people say that with the rapid development of computer technology and information, learning abacus arithmetic is not going backwards? With the existence of airplanes, trains, cars, and motorcycles, is there still a use for bicycles? Each has its own strengths and uses. Although computers are very useful, saving time and being accurate, they cannot become the foundation of mathematics. Abacus arithmetic is different; it allows students to truly experience the entire calculation process, which is an extremely important aspect of mathematics. To master mathematics well, one must understand the entire calculation process. Knowing only the answer without understanding the reason behind it does not help in the development of thinking abilities. One can only say that computers are a tool for calculations, while abacus arithmetic helps in the development of intellectual functions.