We advance three propositions in this paper. First, teaching international business (IB) at any level needs to be theoretically driven, using mainstream frameworks to organize thinking. Second, these frameworks need to be made relevant to the experiences of the students; for example, by using them in case studies. Third, these parameters of rigor and relevance need to be seamlessly integrated. We then demonstrate these principles using Rugman's CSA-FSA matrix, describing both the theoretical and practical value of the framework. (Contains 1 figure.)