Discusses research on middle school science learning and instruction that suggests how generative models of scientific phenomena can be developed. The Computer as Learning Partner curriculum is introduced as a curriculum that provides a firm foundation for lifelong learning through the use of authentic questions. (SLD)

Argues for a reconceptualization of teaching expertise based on psychological similarities of expert teachers to one another. The authors offer a prototype-based categorization model, drawn from psychological research, on which the family resemblance among expert teachers may be founded. The authors discuss several implications of the prototype…