This article identifies realistic, research-based computer simulations that are capable of stimulating student decision making. Also discussed is a recent category of computer programs, probeware. Students use a sensing device (probe) to measure physical characteristics and transmit results to a computer which collects, stores, and displays the…

Presents low-cost learning activities to help teach elementary students about the earth's magnetic field. One project has students make a model of the earth's magnetic field. Another has them experiment with magnetism. (SM)

Three articles discuss the use of computers in education: (1) "References for a Broader Vision" (Henry F. Olds, Jr.); (2) "What Every Teacher Should Know About Computer Simulations" (David Grady); and (3) "The Computer as Palette and Model Builder" (Interview of Alan Kay). (CJ)

This activity book for teachers and students presents ideas for lessons on Christopher Columbus. Three sections offer teaching ideas and student activities focusing on Columbus's inspiration and preparation for departure, the science of navigation and the voyage, and the pros and cons of changes brought about by Columbus's voyage. (SM)