Preschool children were asked to choose the figure most resembling a real man from three figures drawn according to formulas used by children to depict humans. Results suggest development of drawing systems influences children's conceptions about objects or events. (Author/DB)

This is volume 3 of the series of translations of books from the Soviet literature on research in the psychology of mathematics instruction and on teaching methods influenced by the research. This volume presents a detailed and careful technical analysis of the constituent aspects underlying spatial thinking as well as interesting reports of…