Development of Physics Learning Media Assisted by Threads Instagram for High School Students

Physics learning is often perceived as difficult by students due to limited opportunities to visualize and imagine the concepts being taught, which in turn reduces their engagement and interest in learning. One of the topics that is still delivered using lecture methods and textbooks is optical instruments. Therefore, an innovative learning medium is needed to boost student engagement. This study aims to examine its validity through theoretical and empirical analysis, assess its practicality, and determine its effectiveness.This research is a development study (Research and Development) using the 4-D model, which consists of four stages: define, design, develop, and disseminate. The developed media utilizes the Threads application on Instagram to support physics learning. The research subjects included media expert validators and eleventh-grade students at SMA PGRI Sungguminasa, Gowa Regency, as respondents. Physics learning is often perceived as difficult by students due to limited opportunities to visualize and imagine the concepts being taught, which in turn reduces their engagement and interest in learning. One of the topics that is still commonly delivered through lectures and textbooks is optical instruments. Therefore, an innovative learning medium is needed to enhance student engagement and understanding. In this context, the study aims to examine the validity of the developed media through theoretical and empirical analysis, as well as to assess its practicality and effectiveness in supporting physics learning.The results indicated that the teachers' responses to the developed media reached a score of 80.65%, falling within the valid and appropriate category for supporting physics instruction. Categorized as practical, while students' responses were 92.54%, categorized as highly practical. The N-Gain test on student learning outcomes showed a score of 0.85 in the high category, with an effectiveness percentage of 84.96%, categorized as effective. Thus, the physics learning media using Threads Instagram is proven to be practical and effective as a supporting tool for physics instruction in the classroom.