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.
In order to name and classify a plant they see, children use their existing mental models to provide the plant with a name and classification. In this study pupils of a range of ages (5, 8, 10, and 14 years old) were presented with preserved specimens of six different plants (strictly, five plants and a fungus) and asked a series of questions about them. Their responses indicate that pupils of all ages mainly recognise and use anatomical features when naming the plants and explaining why they are what they are. However, older pupils are more likely to also use habitat features. For both girls