Looking at numbers as groups of rocks may seem unusual, but actually it's as old as math itself. The word "calculate" reflects… — Anonymous Copy Share Image
My older brother was cool, so I was suddenly cool by association. And I totally dusted all my old math friends. — David Spade Copy Share Image
Indeed, there is something to be said for the old math when taught by a poorly trained teacher. He can, at least,… — Martin Gardner Copy Share Image