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.
Youth participants in an informal after school science program created a multimodal digital video public service announcement video. This paper considers the counterstories that emerge within the video and during the making of the video that challenge existing definitions of science literacy. The investigation suggests youth engage in expansive learning where vertical knowledge and horizontal knowledge inform their actions toward community based energy issues. Vertical knowledge describes the scientific knowledge youth engage while horizontal knowledge refers to the locally situated knowledge