Augmented reality (AR) superimposes digital content onto the real world in real time. There are two main types of AR technologies: marker-based AR uses images or codes that digital objects can be overlaid on, while marker-less AR uses location data to present virtual objects based on a user's location. AR has advantages for education by enabling visualization of concepts that are otherwise difficult to see, which can enhance understanding. It can also increase student motivation, attitudes, and academic achievement.