Introduction: Virtual worlds (VWs) are immersive three-dimensional environments, accessible simultaneously to multiple users, and described as shared, simulated spaces, whose inhabitants represented as avatars. VWs enable freedom of expression. Using VWs in educational contexts requires a shift from teacher-centered instruction to facilitation of…

Mobile technology is ubiquitous and diverse and permeates many aspects of daily life at home, during leisure activities, and in public spaces. The study presented here is of two sixth grade classes in Michigan, USA and two seventh grade classes in Norway. The students and the teachers in these four classrooms were equipped with mobile technologies…