This talk was given at the 2011 PhysTEC Conference and addresses the dilemma of what to teach today, an ongoing issue among many teachers, administrators, researchers, and standards writers. Modeling Instruction is built on one answer to this question; teach students to build, evaluate and deploy models. Modeling Instruction has become over the past twenty years the largest high school physics professional development workshop in the US.  Adaptation of Modeling Instruction is growing in university physics as well. In this presentation Eric Brewe discusses some of the underpinnings and the history of Modeling, then highlights research into Modeling Instruction as a view on the future of Modeling.