Arran Hamilton

Arran Hamilton is an education researcher and author focused on implementation and impact in schools. He is a co‑developer of the 5D Implementation Framework—Discover, Design, Deliver, Double‑Back, Double‑Up—which is used by schools and systems to move from promising ideas to sustained, measurable improvements in teaching and learning. He is credited as one of a group of “world‑renowned educational improvement experts” behind this framework, alongside Douglas B. Reeves, Janet Clinton, and John Hattie.

Hamilton is co‑author of Building to Impact: The 5D Implementation Playbook for Educators (Corwin, 2022), with Douglas B. Reeves, Janet M. Clinton, and John Hattie, a practical field manual for implementing high‑impact initiatives in schools. He is also a co‑author of Making Room for Impact: A De‑implementation Guide for Educators, written with John Hattie and Dylan Wiliam, which outlines structured processes for reducing or removing low‑impact practices so educators can focus on approaches with stronger evidence of effectiveness.