Carnegie Mellon University has launched OpenSimon — a learning engineering community that will catalyze a revolution in learning and teaching for the world’s educational institutions. Central to this effort is the release of the OpenSimon Toolkit. This suite of tools, educational resources and underlying codebase includes many of the instruments that Carnegie Mellon’s learning scientists invented for their own research and are being used to improve the quality of courses taught in CMU classrooms today. Altogether, this collection represents more than $100 million in research and development effort.