Indonesia is highly vulnerable to hydrometeorological disasters, requiring contextual disaster mitigation in Geography education. This study aims to develop a Geography disaster mitigation e-module integrating BMKG data and Tana Toraja local wisdom, and to evaluate its validity, practicality, and effectiveness. Utilizing the Research and Development (R&D) method with the ADDIE model, the study involved students from Makale Catholic High School, Tana Toraja. Data were collected via questionnaires, interviews, and pre-/post-tests, then analyzed using descriptive qualitative-quantitative methods and N-Gain analysis. The results indicate that the e-module is valid based on expert assessments, practical according to teacher and student responses, and effective in enhancing student understanding and preparedness, demonstrated by a moderate-to-high N-Gain score. Consequently, this e-module is highly suitable as a contextual and innovative learning medium to support high school disaster mitigation education.
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