Test-Driven Development is a process that has obvious parts (the well-known Red-Green-Refactor), but also has subtle nuances that make the difference between a good process and a great one. Ted's "Predictive TDD" builds on TDD, adding an important step to the process: predicting how a test will fail. As part of teaching TDD, Ted created a game that's not only fun, but provides a great opportunity to discuss how TDD works.