Educating management students on the connections between business and climate change is essential both to their careers and to society's ability to solve the climate challenge. To impart deep and lasting learning on this topic, the authors developed a multischool negotiation simulation that is unique in its intensiveness, cross-sector design, and transdisciplinary nature. This article explains their objectives, connects the choice of a role-play format to past literature, describes the curriculum they designed, and evaluates the results of its first and second teachings. Evaluation is based on the extent to which the course met their specific objectives, how individual elements contributed to overall learning, and the overlap between this curriculum and established precepts of good sustainability teaching. In addition, they draw lessons from their experience to guide others wishing to teach on this or on related topics. (Contains 5 tables and 1 note.)