James P Lantolf Editor & Author

James P. Lantolf: George and Jane Greer Professor in Language Acquisition and Applied Linguistics, Director of Center for Language Acquisition, and Co-director of Center for Advanced Language Proficiency Education Research at the Pennsylvania State University. Research interests include Sociocultural Theory, second language acquisition, and metaphor and conceptual knowledge. Co-author with S.L. Thorne of Sociocultural Theory and the Genesis of Second Language Development (Oxford University Press, 2006). Matthew E. Poehner: PhD, Pennsylvania State University (2005), Coordinator of Intensive English Program at Juniata College. Research interests include Sociocultural Theory, Dynamic Assessment, and Concept-Based Language Instruction. Has published articles in Journal of Applied Linguistics, Critical Inquiry in Language Studies, and Language Teaching Research. Forthcoming book Dynamic Assessment: A Vygotskyan Approach to Understanding and Promoting Second Language Development.