J. Adams; Editors: T. Thaden-Koch and R. Fuller, PERC 1998 Proceedings, 49-50, 161-164, 165-208.
In this PERC 1998 session, a representative from each physics education research group provided a report on their group's PER research and development activities. Collectively, the…
G. Aikenhead and A. Ryan, Sci. Educ., 76 (5), 477-491 (1992).
Educators who plan science lessons, who develop science curricula, or who evaluate learning, often wonder about students' preconceptions of the material to be taught. Until now,…