The Research Training Group (RTG) in Mathematical Modeling and Simulation is really a NSF-funded vertically-integrated research activity in the Courant Institute funded through the National Science Foundation (award DMS-1646339) since nov 2017. The audience includes faculty, Courant Instructors, postdocs, graduated pupils, and undergraduate students thinking about applied mathematics more broadly, and modeling and simulation of physical systems more particularly. Since in early stages, the Courant Institute were built with a strong emphasis in applied mathematics, with modeling and simulation at its core.