Presymptomatic genetic testing generates socioscientific issues in which decision making is complicated by several complexity factors. These factors include weighing of advantages and disadvantages, different interests of stakeholders, uncertainty of genetic information and conflicting values. Education preparing students for future decision…

In this study, the authors compared four multimedia learning arrangements differing in instructional approach on effectiveness and efficiency for learning: (a) hypermedia learning, (b) observational learning, (c) self-explanation-based learning, and (d) inquiry learning. The approaches all advocate learners' active attitude toward the learning…

This article summarises a doctoral thesis entitled "Learning algebra in a computer algebra environment, design research on the understanding of the concept of parameter" (Drijvers, 2003). It describes the research questions, the theoretical framework, the methodology and the results of the study. The focus of the study is on the…