The aim of the study informing this paper was to investigate pre-service teachers' (PSTs') approaches to task design, posing the research question: How do pre-service teachers respond when they are asked to design an exploratory task using GeoGebra for 8th grade students? The research study and this paper focus on the PSTs' design stories rather…

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…

This article describes a pilot study that evaluated the efficacy of a computer-based, behavioral skill-building program in reducing aggression and improving academic performance among middle school students. The program is Ripple Effects'"Relate for Teens," a media rich, interactive application based on combining a proprietary learning…