The Crumble Starter Kit Companion manual is a book series focused on educating students between the years of eight to twelve. The purpose is to teach students who are interested in robotics how to use the Crumble Controller to create models of real_-world robots within multiple industries. The student will be introduce to eight of the external add-on modules (called crumbs) in the educational process. These eight introductions talk directly to the student as each of the following crumb types are discussed: analog input, analog output, digital input, and digital output.