This report examines the scaling journeys of 14 regional and global education initiatives that are attempting to scale within 30 low- and middle-income countries (LMICs). In 2020, the Center for Universal Education (CUE) at the Brookings Institution joined the Global Partnership for Education’s (GPE) Knowledge and Innovation Exchange (KIX) - a joint partnership between GPE and the International Development Research Centre (IDRC) - to facilitate a cross-national, multiteam, design-based research and professional support initiative called Research on Scaling the Impact of Innovations in Education (ROSIE). The goal of this partnership is threefold: 1) To enhance the quality and results of scaling efforts among KIX global and regional projects through participatory action research and conceptual and practical guidance. 2) To generate new evidence around effective strategies for scaling education initiatives through research and analysis of KIX partner projects and through complementary research focusing on key drivers and enabling conditions from a national decisionmaker perspective. 3) To develop and disseminate practical, evidence-based resources and conceptual tools for KIX partners, education stakeholders in GPE member countries, regional entities, and the international development community on scaling education initiatives to optimize quality, inclusion, equity, and sustainability. To pursue this, CUE has been reflecting on what can currently be learned from the 14 ROSIE collaboration teams in order to offer insights and recommendations both for the ROSIE collaborator teams and for other practitioners, policymakers, and funders around the world working to scale the impact of their efforts to improve education and learning outcomes. The report presents our empirical reflections and offers relevant guidance. Given that the research is ongoing, the report does not offer an overarching explanation of, or framework for, scaling but rather presents illustrative examples and provisional analyses of topics that constitute part of the scaling process in education globally.