Penina KaminaPenina Kamina is a professor of mathematics education at the State University of New York, Oneonta, where she is responsible for advising and teaching mathematical content to pre-service elementary education majors. She views mathematics teaching andlearning as the negotiation of meanings, with the expert as a facilitator. She holds a Ph.D. in teaching and curriculum from Syracuse University and M.Ed. in mathematics education from Kenyatta University. Read More Read Less