Teacher knowledge has long been a focus of many educational researchers. Current conceptualizations of teacher knowledge are beginning to reflect the knowledge and skills teachers need to successfully navigate increasingly technologically-rich mathematical classrooms with the addition of knowledge domains such as technological pedagogical content…

Researchers have highlighted the benefits of using virtual worlds such as Second Life in education, but they have also forewarned educators of potential drawbacks. Understanding how virtual worlds work, including their capabilities and limitations, empowers educators to make better decisions regarding their relevance to learning and teaching. This…