We present the Classroom Technology Deployment Matrix (CTDM), a tool for high-level Planning, Monitoring, Evaluating and Reporting of classroom deployments of educational technologies, enabling researchers, teachers and schools to work together for successful deployments. The tool is de-rived from a review of literature on technology adaptation (at the individual, process and organisation level), concluding that Normalization Process Theory, which seeks to explain the social processes that lead to the routine embedding of innovative technology in an existing system, would a suitable foundation for developing this matrix. This can be leveraged in the specific context of the classroom, specifically including the Normal Desired State of teachers. We explore this classroom context, and the developed CTDM, through look-ing at two separate deployments (different schools and teachers) of the same technology (Collocated Collaborative Writing), observing how lessons learned from the first changed our approach to the second. The descriptive and an-alytical value of the tool is then demonstrated through map-ping these observation to the matrix and can be applied to future deployments.