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Enseñanza de las ciencias (Natural Sciences Teaching)

¿Han sido seleccionados o se han acostumbrado? Ideas de estudiantes de biología sobre la selección natural y consistencia entre ellas

Have they been selected or have they become accustomed? Biology students' ideas on natural selection and the consistency between them

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Pages 67-81 | Received 01 Mar 1988, Accepted 01 Jun 1989, Published online: 29 Apr 2014
 

Resumen

Estudiantes universitarios de Biología, ante problemas de respuesta abierta sobre la selección natural, utilizan, en porcentajes alarmantes, interpretaciones que consideran la adaptación como cambios heredables en los individuos. Se encontró un cierto grado de consistencia entre las respuestas de cada sujeto a los problemas en diferentes contextos; pero hay también casos en que una persona empleó esquemas conceptuales diferentes. Se sugiere que una de las condiciones para promover el cambio conceptual es que los profesores tengan en cuenta las ideas de los estudiantes.

Abstract

When faced with open-response problems on natural selection there was a large percentage of university students of Biology who used explanations which regard adaptation as inherited changes in individuals that are passed on to offspring.

A degree of consistency was found between subjects answers to problems with different task contexts; although sometimes more than one framework was used by the same subject.

It is suggested that one of the conditions for promoting conceptual change is that teachers pay attention to student's ideas.

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