03:23
The Growing Years: Do Babies Have a Sense of Numbers?
Karen Wynn and a team of researchers at the Yale Infant Cognition Laboratory are conducting experiments related to young babies and their ability to grasp number and mathematics concepts. Using "looking time" as a measure of a baby's expectations, r...
01:10
Rounding Numbers: Summary: Rounding Numbers
This clip summarizes rounding numbers, explaining that, "
we use rounded numbers either when it's not important to know the exact ones, or when we can't find them." The clip then explains when and how we round up or down.