Preschool children's understanding of the coordinated concepts of distance, movement, number, and time.
D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D004215:Distance Perception; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D009039:Motion Perception; D012737:Sex Factors; D012923:Social Class; D013998:Time Perception