People learn best, and remember what they learned, through hands-on exercises. Training in process improvement will invariably include a simulation component, where students will immediately apply what they have learned intellectually. Typical Lean simulations for hospitals include Batch vs. Flow, Par Level versus Kanban, Quick Changeover, Quality Work and Employee Flexiblity. Lean Training Tools in the OR is an instruction booklet with scripts and support materials to conduct all of these exercises.