Abstract
The study probed into the cognitive activity and the development of the children from 3 to 5 years of age in magnitude comparison of one-figure number. Three experiments were included. In Experiment 1, the psychological representative model in magnitudes of one-figure numbers were explored. In Experiment 2, the semantic code characteristics of the numbers and the relation between numerical magnitude comparisons and semantic code were studies. In Experiment 3, the cause and effect research design was used to explore the influence of semantic code on the judgment of numerical comparisons. The results showed: (1) The comparison of numerical magnitudes made by children was influenced directly by their semantic representation of numbers. (2) The children presented the discrete category model gradually in magnitude representation of one-figure number as their ages increased. As a result, the process of magnitude comparison of one-figure number developed gradually from the random and disorder course to the hierarchical comparison course.
| Keywords: | children; magnitude comparisons; cognitive development; information processing |
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