This research aims to develop a case-based method jobsheet on CNC Lathe 2A material that is valid and practical in the Mechanical Engineering Education Study Program, FKIP University of Sriwijaya. This type of research is research and development (R&D) using a 4D (Define, Design, Develop, Disseminate) development model. The subject of the study is a student of the Mechanical Engineering Educati…