As Girls’ Education Challenge (GEC) projects aim to reach highly marginalised girls with education interventions, including through the implementation of targeted EdTech solutions, there is an opportunity to draw out some learning on how EdTech can work in low resource contexts for the most disadvantaged. This Learning Brief looks at some of the EdTech approaches, factors of success and lessons learned across GEC projects. It draws largely from a research article written by EdTech Hub in collaboration with the GEC that examined the factors that have facilitated the effective delivery of EdTech interventions and contributed to successful outcomes across the GEC portfolio. This research focuses particularly on six projects that have had positive outcomes. This brief heavily draws on this research as well as learnings across other GEC projects.