The Diffusion Simulation Game $($DSG$)$ teaches change management strategies which are consistent with Rogers' $(2003)$ diffusion of innovation theory and related research. The player's goal within the DSG is to promote the acquisition of strategies that result in the adoption of an instructional innovation $($peer tutoring$)$ by the principal, teachers, and support staff at a fictional junior high school. The underlying model of the DSG represents several concepts of the diffusion of innovations theory such as: progressive adoption stages $($awareness$,$ interest, appraisal and trial, and adoption of the innovation$),$ adopter types $($innovators$,$ early adopters, early majority, late majority, and laggards$),$ opinion leaders, and gatekeepers.