The development of immersive virtual reality (IVR) hardware and software has accelerated in recent years. The conceptual vocabulary has, however, not received the same amount of attention, especially in the context of collaborative learning settings. Existing concepts such as immersion, presence and interactivity focus predominantly on the…

In vision-based augmented-reality (AR) environments, users view the physical world through a video feed or device that "augments" the display with a graphical or informational overlay. Our goal in this manuscript is to ask "how" and "why" these new technologies create opportunities for learning. We suggest that AR is…