Counting is the mathematical action of repeatedly adding (or subtracting) one, usually to find out how many objects there are or to set aside a desired number of objects (starting with one for the first object and proceeding with a one-to-one correspondence). However, counting is also used (primarily by children) to demonstrate knowledge of the number names and the number system.

Inclusive counting is usually encountered when counting days in a calendar. Normally when counting 8 days from Sunday: Monday will be day 1, Tuesday day 2, and the following Monday will be the eighth day. When counting inclusively the Sunday (the start day) will be day 1 and therefore the following Sunday will be the eighth day. Examples: the French for fortnight is quinze jours (15 days), similarly in Greek (δεκαπενθήμερο) and Spanish (quincena) are all based on the number 15. The practice appears in other calendars: in the Roman calendar the nones (meaning nine) is 8 days before the ides; and in the Christian calendar Quinquagesima (meaning 50) is 49 days before Easter Sunday.

Counting sometimes involves numbers other than one -- for example, when counting money, or counting out change, or when "counting by twos" (2, 4, 6, 8, 10, 12, ...) or when "counting by fives" ( 5, 10, 15, 20, 25 ...).

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Rhymes and Counting - Twitter Search

As a preschooler is learning letters, counting, rhymes, and shapes, the most important skills learned are self-control and problem-solving.
DChristianson (David Christianson) Fri, 30 Oct 2009 12:33:37 -0000
As a preschooler is learning letters, counting, rhymes, and shapes, the most important skills learned are self-control and problem-solving.

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