||This paper contains a brief description of a research about classification in the context of solid geometry. Models of answers to tasks given by teacher training students of different courses and specialities are shown. To do the tasks it is necessary to identify and enumerate examples of prism's subfamilies; to judge, state and justify relationships between the subfamilies characterised and to represent by means of a diagram those relationships. Errors made by the teacher training students are exposed as well as the difficulties they encountered when doing the tasks after the quadrilateral inclusive classification was studied and different prism's families had been established. The data analysed was obtained from interviews, class-working sessions and written answers to homework activities. The research was carried out with students of Escola de Magisteri Ausiàs March (Teaching School) of the University of Valencia.
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||Ensenanza de las Ciencias, V. 19 N. 3 (2001) , p. 415-431, ISSN 0212-4521