Articulación del uso de pruebas y el modelo de flujo de energía en los ecosistemas en argumentos de alumnado de bachillerato
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ISSN: 0212-4521
E-ISSN: 2174-6486
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Universitat Autònoma de Barcelona
Abstract
Este estudio examina el uso del modelo de flujo de energía y su articulación con pruebas
situadas en diferentes niveles epistémicos por estudiantes de segundo de bachillerato. La muestra
analizada (N = 254) procede de los exámenes de la Prueba de Acceso a la Universidad. La tarea solicita
al alumnado justificar la limitación en el número de niveles de una cadena trófica. Los resultados
muestran: a) que el uso del modelo teórico por el alumnado es más sofisticado que el uso de pruebas y
b) que del 12,2% de los estudiantes que utilizan pruebas en tres o cuatro niveles epistémicos, la mayoría
(11% del total) usan un modelo complejo de flujo de energía. Una implicación es que, aunque el
conocimiento conceptual es necesario para articular pruebas, no es suficiente, siendo necesario llevar a
cabo actividades para promover el uso de pruebas en la clase de ciencias
This study examines the use of the model of energy flow and its articulation with evidence at different epistemic levels by 12th grade students. The sample (N = 254) was obtained from an external standardized examination. The task requires students to justify the limitation on the number of levels in a trophic chain. The results show that: a) the students’ use of the theoretical model is more sophisticated than their use of evidence; and b) from 12,2% of students that use evidence in three or four epistemic levels; the majority of them (11% from the total number) employ a complex model of energy flow. One implication is that although content knowledge is necessary in order to articulate evidence, it is not enough, and there is a need to carry out activities in order to promote the use of evidence in science classroom
This study examines the use of the model of energy flow and its articulation with evidence at different epistemic levels by 12th grade students. The sample (N = 254) was obtained from an external standardized examination. The task requires students to justify the limitation on the number of levels in a trophic chain. The results show that: a) the students’ use of the theoretical model is more sophisticated than their use of evidence; and b) from 12,2% of students that use evidence in three or four epistemic levels; the majority of them (11% from the total number) employ a complex model of energy flow. One implication is that although content knowledge is necessary in order to articulate evidence, it is not enough, and there is a need to carry out activities in order to promote the use of evidence in science classroom
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Bravo Torija, B., Jiménez Aleixandre, M.P. (2014) Articulación del uso de pruebas y el modelo de flujo de energía en los ecosistemas en argumentos de alumnado de bachillerato. Enseñanza de las Ciencias, 32.3, pp. 425-442
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http://dx.doi.org/10.5565/rev/ensciencias.1281Sponsors
EDU2012-38022-C02-01 financiado por el Ministerio de Economía y Competitividad
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Copyright (c) Autores. Licencia Creative Commons Atribución 4.0 Internacional








