Please scroll down for article-it is on subsequent pagesWith 12,500 members from nearly 90 countries, INFORMS is the largest international association of operations research (O.R.) and analytics professionals and students. INFORMS provides unique networking and learning opportunities for individual professionals, and organizations of all types and sizes, to better understand and use O.R. and analytics tools and methods to transform strategic visions and achieve better outcomes. For more information on INFORMS, its publications, membership, or meetings visit Abstract. Teaching cases have become a cornerstone of operations research and management science (OR/MS) education since the early 1990s, when the focus of the pedagogy largely shifted to an applied, model-building emphasis. I provide a review of the literature related to the use of teaching cases in general as well as their use specifically within OR/MS courses. I discuss the pedagogical benefits and the challenges in using teaching cases to teach OR/MS methods and their application. I conclude by offering some practical suggestions to assist instructors looking to implement cases in their classrooms for the first time or to improve their effectiveness in using teaching cases.