Examines spatial concepts required by young children for the understanding and manipulation of turn commands in Logo, and reviews the literature on children's Logo learning and the psychological-cognitive development of spatial concepts. Geometric concepts, alternative frames of reference, and the use of Turtle graphics are also discussed. (39…

This paper examines the gap between the learning potentials that computers provide and the actual impact of computer use on learning and development. It is argued that the computer's unique potential is derived in part from four basic attributes: information, symbol systems, user activities, and relations with the user. It is hypothesized that…