Before the Bank of Canada got rid of the penny, I sometimes drove store checkout clerks mad by paying with extra dimes, nickels and pennies so I would get quarters as change. I never meant to be a ...

Some time in elementary school, you quit counting your fingers and just know the answer. Now scientists have put youngsters into brain scanners to find out why, and watched how the brain reorganizes ...

It is just as natural for young children to think mathematically about their world as it is for them to use language. They develop mathematical knowledge as they manipulate objects and reason about ...