Subitising

'Subitising is the instant recognition of numericy in a group' (Clements, 1999). By subitising, children are able to recognize the numbers without even counting.


There are two different recognize forms:


Perceptual subitising.
"Recognizing a number without using other mathematical processes" (Clements 1999,p. 401).
For example: Children might "see 5" without using any learned mathematical knowledge.


Conceptual subitising.
"Recognizing the number pattern a s a composite of parts and as a whole, for example: an eight-dot domino" (Clements, 1999,p.401)

Snap card game.

This game is good to enhance students' subitizing skills. The numbers are represented in dot form so children must recognise the number. When the same number appears twice, they can 'snap' the card with their fly swatter or hand.

Teddy bear race home.

This is another games that can be played to teach subitising concept. The child must pick a number for their little toy character. Then they must roll the dice and if their number appears on the dice they get to move their toy one space. This is a perfect example of subitizing as to recognise their allocated number when it appears on the dice they must use this technique.


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