Thus far, it is unclear how students can learn most effectively from their own errors. In this study, reflections on the rationale behind self-made errors are assumed to enhance knowledge acquisition. In a field experiment with pre/post/follow-up design, the authors practiced fractions with 174 seventh- and eighth-grade students who were randomly…

Our study investigated whether problem-oriented designed ecology lessons with phases of direct instruction and of open experimentation foster the development of cross-domain and domain-specific components of "experimental problem-solving ability" better than conventional lessons in science. We used a paper-and-pencil test to assess…

This study reports middle school astronomy classes that implemented photographs and classroom response systems (CRSs) in a discussion-oriented pedagogy with a curriculum unit for the topics of "day-night" and "cause of seasons." In the new pedagogy, a teacher presented conceptual questions with photographs, her 6th grade…