Students' understanding of the role of scientific models in learning science

Scientific models are used routinely in science not only as learning tools, but also as representations of abstract concepts and as consensus models of scientific theories. Students' experiences with scientific models help them to develop their own mental models of scientific concepts. This paper discusses the development and evaluation of an instrument to measure secondary students' understanding of scientific models. The results of a study with 228 secondary science students identify five themes about students' understanding of scientific models: scientific models as multiple representations; models as exact replicas; models as explanatory tools; how scientific models are used; and the changing nature of scientific models. The results highlight the need for greater emphasis on the teaching of the role and purpose of the concept of scientific models in science.

[1]  A. Tiberghien.  Modeling as a basis for analyzing teaching-learning situations , 1994 .

[2]  Frank T. Hinerman.  Interactive Video Labs , 1991 .

[3]  Carol L. Smith,et al.  Understanding models and their use in science: Conceptions of middle and high school students and experts , 1991 .

[4]  John K. Gilbert,et al.  Models in explanations, Part 2: Whose voice? Whose ears? , 1998 .

[5]  Julie R. Korenberg.  Mental modelling , 1995, Nature Genetics.

[6]  Model-based reasoning in a year 10 classroom , 1999 .

[7]  Stuart A. Rosenfeld,et al.  Metaphorical Models in Chemistry , 1995 .

[8]  Yehudit Judy Dori,et al.  High-School Chemistry Students' Performance and Gender Differences in a Computerized Molecular Modeling Learning Environment , 1999 .

[9]  M. Linn,et al.  How do students' views of science influence knowledge integration? , 1991 .

[10]  John K. Gilbert,et al.  The use of analogue models by students of chemistry at higher education level , 1991 .

[11]  D. Gentner,et al.  Cultural models in language and thought: How people construct mental models , 1987 .

[12]  S. Gilbert.  Model building and a definition of science , 1991 .

[13]  Hong Kwen Boo,et al.  Students' Understandings of Chemical Bonds and the Energetics of Chemical Reactions. , 1998 .

[14]  Anthony J. Hardwicke.  Using Molecular Models to Teach Chemistry. Part 2: Using Models. , 1995 .

[15]  David F. Treagust,et al.  Secondary students' mental models of atoms and molecules: Implications for teaching chemistry , 1996 .

[16]  Anthony J. Hardwicke.  Using Molecular Models to Teach Chemistry. Part I: Modelling Molecules. , 1995 .

[17]  John K. Gilbert,et al.  Learning Science Through Models and Modelling , 1998 .

[18]  John K. Gilbert,et al.  Models in explanations, Part 1 : Horses for courses? , 1998 .

[19]  George Marx,et al.  Models in Science Education. , 1981 .