The authors, each from a different background, share a passion for sociocultural theory. Each author brings stories, data and experiences from her area of expertise: second language pedagogy and teacher development (Linda); elementary classroom teaching with second language and bilingual students (Penny) and teaching and research in bilingual education and second language learning (Merrill). Merrill Swain is Professor in the Curriculum, Teaching and Learning department at the Ontario Institute for Studies in Education (OISE) at the University of Toronto.