Is it possible to count objects you can't see? If you've ever received a boxed gift, or a mysterious package from Amazon, you might have tried to lightly shake the box to try to guess its contents ...

Skip counting is a useful skill if you need to count sets of objects, such as pairs of shoes, gloves, the wheels on a tricycle, or even money. Counting on in twos, threes, fives and tens is easy ...

The Counting Kingdom is a new tower defense game for PC and Mac that perfectly blends learning about math and fun for kids 6 to 8.

Is it possible to count objects you can't see? If you've ever received a boxed gift, or a mysterious package from Amazon, you might have tried to lightly shake the box to try to guess its contents ...

Psychologists have found that use of certain objects for counting have mixed results with preschoolers, particularly if those objects are rich in perceptual detail (bright and shiny).