Archived Japanese children learn super-fast mathematics with abacus (hooktube.com)
submitted ago by Grindelwo
Posted by: Grindelwo
Posting time: 1.7 years ago on
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Archived on: 7/4/2019 10:00:00 AM
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Archived Japanese children learn super-fast mathematics with abacus (hooktube.com)
submitted ago by Grindelwo
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[–] Bitterroot_Bugler 0 points 1 point 1 point (+1|-0) ago
Abacus and slide rules are often ignored, but powerful tools... combined with a brain. All of which are in short supply today.