Through a strategic learning process, prototypes unveil design directions. We provide a review of prototyping methods for novice designers to study and pedagogical practice for capstone design course faculty to juxtapose. Stanford University's ME310 graduate-level project-based learning course introduces students to various prototyping design techniques, such as Needfinding and Benchmarking, and prototyping methods, such as the Critical Experience Prototype, Critical Function Prototype, Dark Horse Prototype, Part-X is Finished, Funky System Prototype, and Functional System Prototype.