Introducing the concept of Process Design in the higher education system is essential to help shape future professionals face real problems through a holistic view. For this, project-based learning (PBL) can be used since it provides the active participation of students to achieve specific results. Therefore, this study aims to apply a PBL theoretical model to teach Process Design through Toyota Kata patterns. The model presents four Target Conditions and their deliverables. To achieve them, students use a systematized routine with small experiments and reflections on the actions performed. To show the applicability of the proposed model, Mechanical Engineering undergraduate students were considered. The model was performed in a Computer Numerical Control (CNC) Laboratory of a Brazilian Federal University over seven days. The students registered the results in a storyboard, describing the seven PDCA (Plan, Do, Check, Action) cycles, the lessons learned, and the main obstacles faced. The contribution of this paper is the application of a PBL model of designing the teaching process, promoting active participation of the students when performing this activity, focus value, and knowledge sharing.