Teaching quantitative courses can be challenging. Similarly, layout modeling and lean production concepts can be difficult to grasp in an introductory OM (operations management) class. This article describes a simulation model developed in PROMODEL to facilitate the learning of layout modeling and lean manufacturing. Simulation allows for the evaluation of layout alternatives and the testing of labor-allocation strategies. In addition, the model shows the lead-time and resource utilization advantages of cellular layouts. Implications of these advantages for lean production are analyzed. As such, students learn to formulate operation strategies and make better decisions based on the outcomes of the simulation. Furthermore, limitations of the model and the need to generalize the model for adaptation in similar classes are discussed. (Contains 9 figures and 2 tables.)