Investigates how situational knowledge differs across individuals of different competence levels. Analyzes participants' descriptions of physics problem situations. Discusses the relationship between competence and the structure of problem situations, differences between experts and novices, and implications for teaching. (Author/KHR)

Describes five astronomy education projects implemented by the Harvard-Smithsonian Center for Astrophysics Science Education Department and funded by the National Science Foundation. Project efforts have concentrated in three major areas: (1) curriculum development; (2) teacher support; and (3) classroom technology. (DDR)

This paper describes the design and implementation of a curriculum unit for English-as-a-Second-Language (ESL) secondary school students by an ESL teacher and a computer studies teacher that sought to foster reading, writing, and computer skills. The unit is based on Mohan's (1986) Knowledge Framework, a conceptual framework that systematically…

Secondary school geometry students have been found to have misconceptions concerning parallel lines. Correctional teaching programs did not seem effective in changing these misconceptions. This research describes an attempt to use teaching strategies which take into account current learning theory and which encourages students to be actively…

Argues that individual teacher's conceptions of disciplinary knowledge are reflected in the curricula but that institutional factors also influence the curriculum presented to students. Discusses constructivist epistemology and employs qualitative research to interpret teachers' conceptions in a case study of three biology teachers. Suggests…

Describes a long-term project where middle school students were taught to visually represent key text ideas through idea-mapping techniques. Instruction was inserted in the content area curriculum along with regular textbooks and supplementary material. Positive effects were found in recall, comprehension, and learning. (MJP)