Changing Perspective As Wang explained, something about the process of counting helps young children mentally alter how they look at a series of objects.

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 ...

Could you determine the contents of a box by shaking it? New research shows how people can use haptic perception to estimate the number of spheres in a box.