Although the core work of science is oriented toward constructing, revising, applying, and defending models of the natural world, models appear only rarely in school science, and usually only as illustrations, rather than theory building tools. We describe the rationale and structure for a learning progression to understand the development of…

A historically rich teaching intervention was developed for biological evolution with the intent of promoting a conceptual change from students' initial understanding to a more Darwinian understanding. Results from evaluation of the intervention indicate promise in the use of historical materials in conjunction with a conceptual change strategy.…

Advocates removing the taboo regarding anthropomorphism and teleology in biology education. Argues that for high school students, accepting such formulations does not necessarily imply anthropomorphic or teleological reasoning. Further, living organisms seem goal-oriented because of their adaptation for survival. Concludes with the argument that…

Ninety-three secondary school biology textbooks, identified in the appendix bibliography, were analyzed to determine the extent of emphasis of 44 topics concerned with the study of evolution. (HM)