Nova is the modeling platform for the course, and it was a spectacular success in giving students quick entry into a rich and visually oriented modeling environment.
I use Nova in my upper-level biology class at Oberlin College to help students grasp genetic models of evolution. The students really benefit from the ability to alter parameters and see how that changes outcomes in an instant.
I use Nova to build a dynamic systems model of participation in an informal economy, dependent on availability of public assistance/unemployment compensation and shifting norms of acceptance/rejection of illicit economic practices (e.g. theft, barter, unlicensed business transactions, etc.). I found Nova to be a more user friendly program, both for designing the model, but also applying the model in the classroom, than other software I have tried, specifically Vensim.