This document discusses how identity changes in virtual environments like Second Life can influence teaching and learning. It notes that profiles in virtual worlds allow for self-expression and identity experimentation. The author then discusses how learner and teacher identities impact the learning and teaching experience, and can help or hinder the learning process. The document outlines questions the author asked Second Life students about choosing avatars and identity changes. Student responses discuss communicating traits through avatars, others' expectations of identities, and how identities may reflect aspects of real lives. The author concludes by suggesting further discussion on implications for teaching.