Kirshner has been on faculty at LSU since 1987. His current professional service includes membership on the editorial boards of Mathematical Thinking and Learning, and Journal of the Korea Society of Mathematical Education, and on the Advisory Board of the James J. Kaput Center for Research and Innovation in Mathematics Education at University of Massachusetts, Dartmouth. He also serves as a Co-director of the Gordon A. Cain Center for Scientific, Mathematical, Engineering, and Technological Literacy at LSU. In past years, he has chaired the Editorial Panel of the Journal for Research in Mathematics Education, and served as President of the North American Chapter of the International Group for the Psychology of Mathematics Education. Kirshner's interests concern the psychology of learning. Studies he has conducted in mathematics education explore the development of algebra symbol skills, and inculcation of explicit mathematical reasoning in algebra through use of a Lexical Support System. His crossdisciplinary approach addresses the problematic of a multi-paradigmatic science of psychology. Rather than align Education with a single theory of learning, or else try to forge a synthesis across paradigms that Psychology itself has not yet accomplished, his work with teachers focuses on the discrete genres of teaching that collectively address the valued learning goals of education.