Explores pupils' (n=800) ideas about what scientists do, their more general knowledge about theories and how they change, and their impressions of how theory and experiment interact in the school science that they have experienced. Discusses teacher and out-of-school effects, gender, school work, and development with age. Contains 22 references.…

Evaluates the effectiveness of a course using a constructivist approach in reducing Dutch secondary school students (n=190) misconceptions about force. Concluded that the lessons were effective in changing students' ideas in regard to forces in rest situations and frictional forces and that learning effects were equally distributed over student…