Explains how the Research on Open Educational Resources for Development (ROER4D) project is using desktop regional reviews, cross-regional surveys, cross regional and country case studies, action research studies and focused impact studies to establish in what ways, and under what circumstances the adoption of OER can impact upon a range of educational aspects. Focuses specifically on conceptual and methodological strategies adopted to tease out the relationship between OER and pedagogical practices in selected countries in Sub- Saharan Africa.