This study provides a historical overview of the development of the instructional television as a tool within the context of science education. The technology was traced from its beginning as experiments in public service broadcasting by universities and television networks, though closed circuit, cable, and commercially produced science-related programming. The use of the technology as a teaching tool is examined in terms of the concept of scientific literacy and the means by which instructional television helped to accomplish the goals of scientific literacy.
Many adolescents develop ideas about and attitudes toward engineering through their exposure to out-of-school representations of science and technology. Yet few studies have investigated the nature of these representations and found ways to use them in formal engineering learning. This article explores media representations of science and technology that today's adolescents are familiar with. It analyzes how the embedded representations compare with those found in academic engineering and examines how these representations influence students' knowledge of and dispositions toward engineering