Virtual humans are on-screen characters that are often embedded in learning technologies to deliver educational content. Little research has investigated how virtual humans can be used to correct common misconceptions. In this study, we explored how different types of narrative structures, refutation text and expository text, influence perceptions…

We developed RoboSTEM, a portal for open educational resources for the use of robotics in teaching and learning, to help teachers learn how to design and implement lessons using robotics. In this article, the design and functionality of RoboSTEM and the theoretical foundations behind its design are described. Two usability testing studies are also…