In this study a distinction is made between routine, semiroutine, and nonroutine problems based on the problem solver's knowledge. Routine problems are solved by applying a known procedure, semiroutine problems require planning that uses functional knowledge, and nonroutine problems require generation of new functional knowledge. Nonroutine…

Reports on a study designed to determine the importance of images to experienced chemists and the nature of images among learners, with particular attention to correlations with level of learning. Suggests that instructional methods should consider the student's ability to develop specific images appropriate to the chemical concepts. (TW)

Perspectives on a psychological approach to learning are offered in this paper. Specific emphasis is directed to the assumption that children possess "minitheories." Minitheories are defined as attempts to make sense of particular kinds of experiences and are explained and delimited by the domain of experience to which they currently apply. This…

An overview is presented of the epistemology of the three types of constructivism. Criticized is another interpretation of constructivism; it is stated that this interpretation is trivial, cognitively abridged, and disrespectful of students' capacities, creativity, and imagination. Constructivism has to go beyond saying that knowledge is…