The making of number: from content to representation (opens in new tab)

Despite their importance to human thought, the origins of numerical abilities remain debated. Numerical quantity is a property of physical objects and events, and both humans and many animals show an innate sensitivity to this numerical content. Yet how this content is represented is a separate question: it may be encoded nonsymbolically by an innate estimation system or symbolically through culturally developed formats, such as numeral notations and number words. Distinguishing content from ...