Editor's Note: This is the final post in a three-part series. The first, Collaboration, can be found here. The second, Reassessment and Redesign, can be found here. Last spring, I was lucky to work with a small cohort of colleagues from Gorham Middle School (GMS) in our shared effort to implement Proficiency-Based Education (PBE) practices in our unique classroom settings. This cohort formed out of USM’s 4-course Certificate of Graduate Study in Proficiency-Based Education p