There are numerous studies – a selection can be found under “Links” – on the effects of using the abacus. They have clearly proven that this ancient calculator is a modern mental tool.

Let’s see how the abacus affects the intelligence of children?

The studies were conducted at major universities in Europe and Africa (University of Manchester, University of Khartoum, University of Ulster) involving 3,185 children aged 7 to 11. They showed that the IQ of children who completed the Mental Arithmetic program increased by 7.11 points compared to children who did not participate in the program. 

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Nothing happens by chance. Not even knowledge. Here you will find a small selection of literature – starting with the effects of calculating with the abacus, through the abacus itself, to recent brain research.

For legal and other reasons, we limit ourselves to linking to texts from science and research that are accessible via libraries or educational platforms. This can lead to a link changing or the file being taken offline. We endeavor to fix such errors as quickly as possible. You are of course free to register with the hosting portals (free of charge).
All we can say is: It’s worth it for children who will change the world! 

All about the abacus

https://www.academia.edu/63293960/Addition_of_Whole_Numbers_with_Regrouping_using_the_Soroban_

Neuroscience

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