Modern education increasingly demands innovation in developing exciting and effective teaching materials. Augmented Reality Technology has attracted attention as a potential tool for increasing student interactivity and engagement in learning. With its ability to present additional information in a natural environment, Augmented Reality offers the opportunity to create immersive and engaging learning experiences. This research explores the use of Augmented Reality in developing interactive teaching materials, focusing on its effectiveness in increasing student understanding and facilitating more profound learning. The research method used in this study was a randomized control experiment in a secondary school. The randomized control experimental research method is used to evaluate the effects of an intervention or treatment on a group compared to a control group that did not receive the intervention or treatment. Data was collected through pre- and post-teaching comprehension tests and surveys of student satisfaction with the learning experience. The results of this research show that using interactive teaching materials based on Augmented Reality increases students’ understanding compared to using conventional teaching materials. Additionally, students in the experimental group reported higher satisfaction levels with their learning experience than the control group. This research concludes that using Augmented Reality to develop interactive teaching materials has great potential to increase learning effectiveness. By presenting additional information visually and interactively, Augmented Reality can improve students’ understanding and increase their involvement in learning. Therefore, integrating Augmented Reality in developing teaching materials can be a valuable step in improving the quality of education.