Through previous research and development, the team created a prototype of a mobile-based augmented reality (AR) app with virtual objects and annotations to engage students in science learning. In this project, the team will develop a new component of the AR app, a prototype with computer vision and recognition software to present real-world phenomena that are ordinarily not observable in nature. In Phase I, the research team will create a magnetism module would show students the invisible magnetic field all around them and how it interacts with magnetic objects. At the end of Phase I, in a pilot study with 50 high school students and 2 teachers, the researchers will examine whether the prototype and newly developed components function as planned, whether students and teachers understand the interface and screen flow of each activity, and whether students demonstrate increased engagement and learning outcomes when using the AR learning modules.