Children think mathematically long before they start school. Before children start learning mathematics at school, they show informal understanding of many numeracy concepts. This is informal numeracy knowledge, that is, skills that children develop before starting school that do not depend on written mathematical notation (Purpura & Napoli, 2015). This review synthesises current research from...

The review describes examples from different countries of practices in educational policy and teacher development focused on enhancing teacher quality. It identifies policies that support teacher development as well as the characteristics of effective pre-service teacher education programs and of high-quality professional learning programs for teachers. It acknowledges the need to modify and adapt intervention...