This study aims to determine the improvement of student learning results and the magnitude of the influence of the application of the Peer Led Guided Inquiry (PLGI) learning model on the subject of Hydrocarbons in class XI MIPA SMA Negeri 5 Pekanbaru. The form of this study is an experimental study using the Pretest-Posttest Design Randomized Control Group. The study sample consisted of 2 class…