Development and Validation of Tenth Grade Physics Modules Based on Selected Least Mastered Competencies

The main purpose of the study is to develop and validate modules in physics for Tenth Grade students. Specifically, it sought to answer the following problems: (1) Are the developed modules appropriate in terms of their objectives, content, design characteristics, learning activities, adaptability, clarity, and evaluation as perceived by experts, teachers, and students? (2) Is there a significant difference among the perceptions of the students, teachers, and experts with respect to the acceptability of the developed modules? (3) Will the developed modules enhance students' performance in basic physics? The development and validation of the modules focused on the ADDIE Model.