The purpose of this research is to provide ELT material for Physics Education Department students at UIN Alauddin Makassar on the theme of Relativity. Research and development utilizing the ADDIE model is the research method. The model includes the processes of analysis, design, development, implementation, and evaluation. There are two sorts of data being analyzed: qualitative and quantitative. Documents on the results of data need analysis and evaluation checklists to validate designed products are included in the research instrument. The results showed that the syllabus components, module organization, and module content matched the criteria and were sufficient for the students' needs, and for future researcher, it is suggested to conduct implementation to test the acceptability of the syllabus and the material.