The ability to design and interpret controlled experiments is an important scientific process skill and a common objective of science standards. Numerous intervention studies have investigated how the control-of-variables-strategy (CVS) can be introduced to students. However, a meta-analysis of 72 intervention studies found that the opportunity to…

Presents and analyzes data focusing on how teacher and students moved between theory and data in a unit designed to engage seventh-grade students mostly in the deductive direction of scientific activity, and how the dialectic of education was played out in the classroom as teacher and students were engaged in the activity. Contains 29 references.…

Describes a study that investigated the role of a design context for developing children's understanding of science as the construction and revision of models. Results indicate that as early as the first grade, children's model-evaluation skills may be quite amenable to development. (DDR)

Argues that assessment should be an integral component of the science curriculum and that assessment should assist students and teachers in accomplishing their goals. Points out the failures of the process-product models of school reform. (DDR)

Discusses preliminary research on a new heuristic tool for learning from laboratory activities in secondary science. Finds that use of the science writing heuristic facilitated students in generating meaning from data; making connections among procedures, data, evidence, and claims; and engaging in metacognition. (Contains 29 references.)…

A model to illuminate and relate various twentieth-century philosophical perspectives on key questions about the nature of scientific theories and, therefore, aspects of the structure and development of postmodern science is described. The Scientific Theory Profile model then forms the basis for a course for science teachers in perspectives on the…

Reports on a case study that examines the beginnings of gender differentiation during a naturally occurring academic activity designed to support and guide young children's interest in doing science. Contains 25 references. (DDR)