<![CDATA[The development of innovative learning media is essential for improving students' numeracy literacy, particularly in learning three-dimensional geometry, which is often perceived as abstract by elementary school students. This study aimed to develop Augmented Reality (AR)-based learning media for three-dimensional geometry to enhance the numeracy literacy skills of fifth-grade students at SDN Pejambon 1. The study employed a Research and Development (R&D) approach using the ADDIE model, consisting of Analysis, Design, Development, Implementation, and Evaluation. Data were collected through classroom observations, teacher interviews, expert validation, teacher and student response questionnaires, documentation, and numeracy literacy tests. The developed media was designed as an Android-based application that visualizes interactive three-dimensional objects using Augmented Reality technology. The findings revealed that the developed media met the validity criteria based on expert evaluations and received positive responses from both teachers and students regarding its practicality. Classroom implementation demonstrated that the media enhanced students' engagement, facilitated their understanding of three-dimensional geometry concepts, and improved their numeracy literacy through contextual learning activities. Therefore, the AR-based learning media is considered a feasible, practical, and innovative instructional tool for mathematics learning in elementary schools.]]>
