Aiming for a first-dan in abacus at 55. A record of my self-taught adult abacus journey, started with my 9-year-old and 2-year-old sons.Teppei MikitaniAt 49, I bought my first abacus.September 23, ...
For years, mathematics has been taught to many children as a subject of abstract numbers, formulas and procedures, something to be memorised and reproduced on paper. But the abacus is offering a ...
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