🇮🇳 India
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From 'Rigaveda' to 'Shunya': How ancient India meets core Mathematics in new Class 9 NCERT textbook
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A Grade 9 student opening the first chapter of their mathematics NCERT textbook this year may not encounter the number system or pythagoras theorem. Instead, they are taken thousands of years back to the streets of the Sindhu-Saraswati civilization, laid out in precise grids.“The idea of ‘grid-based thinking’… has deep roots in Bhārat,” the textbook notes, adding that ancient cities were built with streets aligned in North-South and East-West directions, functioning as “a coordinate system in pr
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