Type of Text: articleAuthor: Aufschnaiter, Claudia (Author)Erduran, Sibel (Author)Osborne, Jonathan (Author)Simon, Shirley (Author)Wiley Periodicals, Inc. (Publisher)UK Economic and Social Science Research Council (Sponsor)German Research Foundation (Sponsor)Tags: classroom researchconceptual changediscourse analysisgeneral sciencemiddle school scienceDruid: kf051vr0345Year: 2008