Abacus learning is a technique used globally in pre-schools and elementary schools to teach math. The students are taught this technique for doing calculations of large numbers. Abacus learning technique is intended to train the mind during the brain's formative stages.
I am personally not in favor of abacus technique of teaching. The cjhildren should be taught mathematics in the classical manner though they may learn techniques like Vedic Math, Abacus and Soroban (which is the Japanese equivalent of an abacus ) additionally.
Originally the 'Abacus' was a calculating tool invented in China around 500 BC. The classical tool is sometimes referred to as the first computer. The Abacus is an instrument used to add, subtract, multiply, divide and to calculate fractions and square roots.
In 'Visual Math' the children are taught to visualise the Abacus in their mind (virtual Abacus) to calculate mathematical problems without the use of the physical tool.
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