This paper will show how the Theory of Constraints approach can be used to teach Supply Chain Management concepts in manufacturing, as well as in business. The Theory of Constraints will be defined and the basic concepts will be presented. The manner in which manufacturing and marketing can both be more effective will be illustrated through a hands-on exercise, which has been used with repeated success in both manufacturing and marketing classrooms, as well as in industry. The exercise provides a clear demonstration of the value of integrating manufacturing and marketing, as well as fostering an understanding of how to accomplish that integration.