This document provides an introduction to using augmented reality (AR) technology for educational purposes. It defines AR as an interactive 3D environment that links physical reality and the virtual world using radio frequency identification. The document then describes the basic processes for using AR, which involves hardware like a computer and webcam, AR software, and markers that trigger virtual content. It explains some example AR projects for education and discusses how AR usage has grown significantly since 2009 and is predicted to be widely adopted for teaching within the next few years.