David C Geary
Filling The Pail
00:00
Is There a Difference Between Language and Literacy?
The ability to read and write in literat might have been an evolutionary advantage, but there weren't enough of them. And then a sanethe similar sort of thing was going on with mathematics. So i goi to thisaen the ladies strarted to think about thus and the ruin ladies. It o kindof built on top of us.
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