Few elementary school teachers command a science background sufficient to offer children early and sustained opportunities to develop an understanding of science concepts, and facility with scientific modes of reasoning. This four-year, NSF-funded study was designed to investigate how and to what extent particular combinations of science content…

This paper reports design experiments on two Japanese elementary science lesson units in a sixth-grade classroom supported by computer support for collaborative learning (CSCL) technology as a collaborative reflection tool. We took different approaches in the experiments depending on their instructional goals. In the unit 'air and how things…