What is special about teaching infants and toddlers? How can the "what, hows and whys" of infant toddler pedagogy be articulated and enhanced to support learning? These questions were at the heart of a two-year study in which researchers teamed up with teachers in five infant and toddler centres in Auckland and Wellington to gather practice-based evidence about pedagogy as the art and science of teaching and learning in this under-researched area of early childhood education and care. (author abstract)