Teacher teams from around the country learn how to apply state-of-the-art simulation and modeling techniques in the classroom to standards-based science and mathematics concepts. Computational scientists guide 25 teams of teachers in their exploration of innovative tools and applications that support students learning in collaborative work groups focused on science and mathematics. The selected teams continue their involvement during the following 18 months with monthly seminars and a Summer Institute. The teacher teams develop modeling and simulation curriculum modules that are shared nationally. As leaders in their school systems, teachers organize wider adoption of computational science methods by their peers. Although applications from both are accepted, high school teacher teams are given preference over middle school teacher teams.