AbstractThe problem behind this research is the unavailability of teaching materials that are effective and attract students' interest in learning. The teaching materials used during the chemistry learning process only utilize textbooks provided in the library and use student worksheets. This causes students to have difficulty understanding the concepts of chemistry, because textbooks tend to be monotonous and difficult to understand, moreover most of the material in chemistry learning is abstract so it needs a better explanation. Meanwhile, teachers have not developed interesting and easy-to-understand teaching materials due to time constraints. Based on this, the researchers conducted research on the development of SETS (Science, Environment, Technology, and Society)-Based Chemistry E-Modules for Class XI Students on petroleum materials. This research uses 4-D research (define, design, develop, and disseminate). To find out the validity or practicality of an e-module, validity and practicality tests are carried out. The results showed that the validation of the SETS-based chemical e-module that had been designed was very valid with a percentage of 96.8%, and the practicality results were very practical with a percentage of 89.0%.Keywords : Development, E-Module, SETS ApproachAbstrakPermasalahan yang melatarbelakangi penelitian ini adalah belum tersedianya bahan ajar yang efektif dan menarik minat belajar siswa. Bahan ajar yang digunakan selama proses pembelajaran kimia hanya memanfaatkan buku teks yang disediakan di perpustakaan dan menggunakan lembar kerja Siswa. Hal ini menyebabkan siswa mengalami kesulitan dalam memahami konsep-konsep kimia, karena buku pelajaran cenderung monoton dan sulit dipahami, apalagi sebagian besar materi dalam pembelajaran kimia bersifat abstrak sehingga perlu penjelasan yang lebih baik. Sementara itu, Guru belum mengembangkan bahan ajar yang menarik dan mudah dipahami karena keterbatasan waktu. Berdasarkan hal tersebut maka peneliti melakukan penelitian pengembangan E-Modul Kimia Berbasis SETS (Science, Environment, Technology, and Society) untuk Siswa Kelas XI pada materi minyak bumi. Penelitian ini menggunakan penelitian 4-D (define, design, develop, dan disebarluaskan). Untuk mengetahui validitas atau kepraktisan suatu e-modul dilakukan uji validitas dan kepraktisan. Hasil penelitian menunjukkan bahwa validasi e-modul kimia berbasis SETS yang telah dirancang sangat valid dengan persentase 96,8%, dan hasil kepraktisan sangat praktis dengan persentase 89,0%.Keywords : Pengembangan, E-Modul, Pendekatan SETS