The purpose of this study is to examine the difference in effectiveness between two on-line scientific learning programs--one with an argumentation component and one without an argumentation component--on students' scientific argumentation ability and conceptual change. A quasi-experimental design was used in this study. Two classes of 8th grade…

Online and face-to-face courses are often viewed and studied as two distinct worlds, but the social field of the teacher who teaches them may well include both, and both the teacher and the courses he or she teaches may be transformed by the movement from one environment to the other. Susan Lowes explores this two-way interaction between…