How can we break the cycle of frustrated students who “drop out of math” because the procedures just don’t make sense to them? Or who memorize the procedures for the test but don’t really understand the mathematics? Max Ray and his colleagues at the Math Forum @ Drexel University say “problem solved,” by offering their collective wisdom about how students become proficient problem solvers, through the lens of the CCSS for Mathematical Practices. They unpack the process of problem solving in fresh new ways and turn the Practices into activities that teachers can use to foster habits of mind required by the Common Core.