First Name =Barbro Elisabeth Last Name =Grevholm Title =Professor Institution =University of Agder Street Address =Serviceboks 422 City =Kristiansand State =Norway Zip Code =NO-4604 Telephone =+4738141639 FAX =+4738141071 E-mail =barbro.grevholm@uia.no URL = Title of talk =Upper secondary mathematics teaching and teachers - two recent Nordic studies