This research was conducted in class X IPA semester II 2016/2017 school year at SMA Negeri I Bengkalis. This Classroom Action Research (CAR) was carried out in two cycles, where each cycle consisted of four steps: planning, action, observation and reflection. Research data were collected through student activity observation sheets, student learning achievement improvement sheets, and teacher and peer activity observation sheets. The teaching and learning process uses Student Activity Sheet. At the end of this research, it can be concluded that the application of the Discovery Learning model to the SPLTV material can improve the learning outcomes of students of Class X Science 2 of SMA Negeri I Bengkalis.Penelitian ini dilaksanakan di kelas X IPA semester II tahun pelajaran 2016/2017 di SMA Negeri I Bengkalis. Penelitian tindakan kelas ini dilaksanakan sebanyak dua siklus, dimana masing-masing siklus terdiri dari empat langkah: perencanaan, tindakan, observasi dan refleksi. Data penelitian dikumpul melalui lembar observasi aktivitas siswa, lembar peningkatan hasil belajar siswa, dan lembar observasi aktivitas guru, dan teman sebaya. Proses belajar mengajar ini menggunakan media LAS (Lembaran Aktivitas Siswa). Pada akhir penelitian ini, dapat disimpulkan bahwa Penerapan model pembelajaran Discovery Learning pada materi SPLTV dapat meningkatkan hasil belajar siswa kelas X IPA 2 SMA Negeri I Bengkalis.___________________Keywords: Classroom Action Research, Discovery Learning, Learning Outcomes.