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Document Type

Article

Abstract

Children between 2 years, 6 months old and 3 years, 2 months old correctly discriminate the relative number of objects in two rows; between 3 years, 2 months and 4 years, 6 months they indicate a longer row with fewer objects to have "more"; after 4 years, 6 months they again discriminate correctly. The discriminative ability of the younger children shows that the logical capacity for cognitive operations exists earlier than previously acknowledged.

Publication Date

April 1969

Journal Title

Iowa Science Teachers' Journal

Volume

6

Issue

4

First Page

29

Last Page

32

Copyright

© Copyright 1969 by the Iowa Academy of Science

Language

en

File Format

application/pdf

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