In an effort to bridge the space between operational Decision Making and the business modeling field, a current gap in System Dynamics (or SD) analysis of decision making was tackled. The "perception" element in mental model learning is addressed. Thus, a 3-step Mental Model Moderation, Modification& Managing (5M) framework is conceptualized, developed and applied in a supply chain context. The 5M framework relies on System Dynamics modeling, experiments and the Brunswikian Lens model as its instruments for analysis. The framework was validated by confirming that mental model misperception does exist and that information presentation methods are decisive for performance. The 5M framework can prove useful in training decision makers to opt for the optimal scenario given a set of cues in a complex environment.