We studied the development of spatial frames of reference in children aged 3-6 years, who retrieved hidden toys from an array of identical containers bordered by landmarks under four conditions. By moving the child and/or the array between presentation and test, we varied the consistency of the hidden toy with (1) the body, and (2) the testing…

Children aged 6 through 9 made drawings of cubes and simple abstract designs, with or without looking at their hand. Copying errors and differences between the age groups were discussed in terms of visual realism (perspective drawing) compared with intellectual realism (structural essentials copied without a unified perspective view). (CTM)