Counting gifts, counting toys or even counting the little fishies in the tank. For a child, there is no better feeling than getting the exact total numerical value of things they love so much present ...

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). Concrete objects ...

Infants and animals are able to understand approximate quantities of different types, in terms of relative proportions of the numbers of different sets of objects, provided the difference in numbers ...