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ERIC Number: ED084805
Record Type: Non-Journal
Publication Date: 1973
Pages: 20
Abstractor: N/A
Reference Count: N/A
A Production System for Counting, Subitizing and Adding.
Klahr, David
An explicit model of the process of quantification which involves the operations of subitizing and counting is described. The general model states that quantification of n items takes place via subitizing when n is less than five and via subitizing and addition (that is, counting) when n is five or larger. The explicit model is stated in the form of a production system, which consists of a collection of independent rules, or productions, each of which is stated in the form of a condition and an action. A special programing language (PSG) which allows users to observe the sequential consequences of their models and to provide inputs for subprocesses is described. An example of the model is presented in order to demonstrate some features of PSG and the conclusion is reached that the model can coordinate subitizing and adding in a way that is fairly true to the empirical data. (LB)
Academic Press, Inc., 111 Fifth Ave., New York, New York 10003
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A