This edited book brings together a collection of research-based work from different contexts across the globe to contribute to improving knowledge and understanding of major issues that early childhood mathematics education encounters today and to advancing research, development and practice in this field. The chapters of the book are based on the invited contributions in TSG 1: Early Childhood Mathematics Education at ICME-13. The chapters provide a wide scope for discussion of current themes, theoretical perspectives and methodological approaches to promoting teaching and learning of mathematics in the early years. This chapter includes an overview of the core focus of the chapters.
