Animated pedagogical agents (APAs) have the potential to provide one-on-one, just-in-time instruction, guidance or mentoring in classrooms where such individualized human interactions may be infeasible. Much current APA research focuses on a wide range of design variables tested with small samples or in laboratory settings, while overlooking…

Emergent research indicates that electronic portfolios (ePortfolios) can have a positive impact on the learning experience, but there are significant challenges--pedagogical and technological--which may limit their effectiveness. This paper contributes to research by providing further evidence about such challenges from the tutor perspective and…

This study focused on the barriers that middle school teachers faced when implementing technology-enhanced problem-based learning (PBL) in their classrooms. Using a human performance-based model, we interviewed teachers, administrators, university faculty and technical support staff to determine the perceived importance of multiple barriers to the…