Discusses the design and maintenance of computer-based teaching and learning environments and illustrates consequences of evolution and change in Web-based courses. Focuses on changes in content; format of the course; infrastructure, including hardware, systems, and software; and pedagogy, or instructional design, including knowledge modeling,…

Investigates the use of female students as peer experts in a workshop introducing an interactive, computer-based learning environment called LEGO/Logo, in which students build computer-controllable machines. Participants were 85 sixth-grade students. Findings indicate that students were successful in building a wide range of machines and that peer…