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Abstract: The experimental study shows: (1) The time perception of the group of 5-year-old children is not very aceurateand steady because they cannot use the standard measure of time. (2) The children of the 6-year-old group generally cannot use the standardmeasure of time and their reproductions of long time intervals are not accurate andsteady, this is similar to children of the 5-year-old group; but their reproductions ofshort time intervals are more accurate and steady than that of the 5-year-old children. (3) The children of the 7-year-old group are able to use the objective standardmeasure of time; but there are only few who can use the subjective standard measureof time. (4) The children of the 8-year-old group can actively use the standard measureof time. The accuracy and steadiness of their time perception are greatly enhancedand tend to approach the level of adults.

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