There was evidence of the abacus going back as early as 2700 B.C. And it is still commonly used in certain countries and places like Japan, China, Russia, and the Middle East.
The Abacus.
An abacus measures nothing, it is a device used for calculation
Yes it is. they teach it in school. It is primarily used to teach little kids in kitnergarden and elementary school to add and subtract.
Thailand vegetable vendors use abacus, nowadays abacus is gaining popularity in India, US and taught by many schools
Yes.
Florida
yes but not many people use it
Before electronics were invented, Mathematicians used abacus's.
the abacus as we know today appeared circa 1200 A.D. in
There was evidence of the abacus going back as early as 2700 B.C. And it is still commonly used in certain countries and places like Japan, China, Russia, and the Middle East.
Yes abacus still in used today, specially for visual impaired students. Eventhough the talking calculator did help for visual impaired students at Braille schools across the nation, but talking calculator do not let students understand the important of number placement value. I enclosed some websites talk about the benefits of using abacus in Braille schools: http://www.hadley-school.org/resources_list_detail.asp?resource=abacus http://www.hadley-school.org/resources_list_detail.asp?resource=abacus
The Abacus.
The Abacus.
The Abacus.
An abacus is an ancient Chinese calculator that is still in use today.
An abacus measures nothing, it is a device used for calculation