This chapter provides an overview of immersive virtual environments (IVEs) in education with an emphasis on augmented reality (AR). A related Chap. 63, “Educational Opportunities for Immersive Virtual Reality” focuses on the other main branch of IVE. The chapter begins with an attempt to clarify and define terms. Then, a review of research is presented for AR that highlights the current and potential impact in PreK-12, higher education, and professional development settings. Findings suggest that use of AR can lead to increased engagement. However, the synthesis also points mostly to theoretical argumentation for AR’s PreK-12 implementation.