We learn to count at such an early age that we tend to take the notion of abstract numbers for granted. We know the word “two” and the symbol “2” express a quantity that we can attach to apples, ...
Rise and Shine is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...
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