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

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.     

Adult literacy,learning identities and pedagogic practice

This article discusses the relationship between persistence in adult literacy and numeracy programs, changes in the participants’ attitudes to engaging in learning and pedagogic practices using data from eight Scottish literacy education organizations. It argues that literacy learning can act as a resource that enables vulnerable adults to change their dispositions to learning, achieve their goals and make a transition towards their imagined futures. Pedagogic practices that operate from an approach that emphasized learners’ strengths, rather than their deficits, and critically interrogated learners’ experiences used as a resource for learning were the most successful in enabling this transition. Holistic provision that creates a supportive community of practice was found to be the most effective in bringing about the positive changes that learners identified they wished to make in their lives.     

Participation in adult and community education: a discourse of diminishing returns

The terms in which the dominant discourse of participation is framed systematically reinforces one particular view about the relationship between life and learning. It is one in which participation in learning is professionally and institutionally controlled and, consequently, defined largely in vocational, instrumental and individual terms. A significant absence in the dominant discourse is an understanding of participation which draws on the experience of the radical tradition in adult education. In a context where there is potential for greater participation in social and civic politics, as evidenced by the growth of social movements, reconnecting with radical ideas about participation in education can lead to rethinking the ‘problem of participation’ and its implications. We need to understand not only how the discourse of participation has generated knowledge but also excludes and limits what is known. A thorough critique is necessary and overdue and one that is critical of the ‘regime of truth’ which has been seeded, cultivated and harvested through the dominant professional discourse.     

School science education for citizenship: Strategies for teaching about the epistemology of science

One consequence of the advancing globalization and technological dependence of society is that people outside professional science are finding that issues of concern to them have a science dimension. I consider how school science education can support engagement with scientific information. I contend that teaching about the epistemology of science is central to achieving this educational goal. I identify epistemic learning aims appropriate to school science education. These are derived from a survey of case studies of how individuals interact with science outside formal education. I consider different ways in which these learning aims might be achieved in schools. Teaching approaches based on modifications of existing practice are identified. Addressing the full range of epistemic learning aims is likely to require teaching approaches rarely used in current science teaching.     

Conceptions of teaching and educational knowledge requirements

Abstract

This paper scrutinises the educational knowledge requirements of craft, technical, and reflective professional conceptions of teaching, as recently outlined by Winch, Oancea, and Orchard. Drawing on Bernsteinian sociology of knowledge we identify the different requirements each conception makes of educational knowledge, and how it is envisaged that this knowledge will be used in educational practice. While craft conceptions dismiss the value of educational knowledge per se, they nevertheless value other forms of disciplined knowledge. Arguing that technical conceptions of teaching may be either narrowly instrumental or autonomous, we suggest that an advanced technical knowledge base requires a disciplinary aspect, while knowledge for purely instrumental purposes offers a reductive view of educational practice. Moreover, the varying notions of reflection suggested by reflective professional conceptions require certain forms of engagement with educational knowledge, which are challenged by contemporary reforms in teacher education globally. It is suggested that there are often interdependencies between forms of educational knowledge and conceptions of teaching, with potential implications for the trajectories of educational reforms. The argument is briefly illustrated with reference to the national contexts of Germany, England, and Finland.     

The Formation of Identity: The importance of ideals

In the formation and composition of what might be termed personal identity a key but often neglected aspect is ideal identity. While comprising aspirations rather than realities, it makes a major contribution to the definition of self-identity. It does this as a result of: (a) clarifying what kind of person the individual wishes to be; and (b) an interrogation of how she sets about achieving her ideal identity, intimating what kind of person she is at a particular moment by virtue of the way in which she strives to achieve her ideal. The article argues for a re-appraisal of the notion of ideals in education and for its reinstatement as a significant feature of education. Indeed, we argue, children cannot avoid ideals--they are presented to them everyday from a wide variety of sources. But these sources or the ideals that they promote are not necessarily good for the child's well-being or for her fellow citizens. Consequently, teachers as moral agents have an important role in assisting children to acquire ideals that do meet such a criterion of goodness in addition to helping them reflect critically on the range of ideals they may encounter in their communities and society.     

How do students learn to apply their mathematical knowledge to interpret graphs in physics?

This paper describes a laboratory-based program in physics designed to help students build effective links between the mathematical equations used to solve problems in mechanics and the real world of moving objects. Through the analysis of straight line graphs derived from their own data students have been able to achieve a considerable development towards a concept of slope, or gradient, and how it relates to the concept of proportionality, but they continue to demonstrate a great resistance to applying their mathematical knowledge to physics. A model designed to help us apply current research ideas to this problem is described. The work described in this paper was carried out at Dickson College, a government senior secondary college (Years 11 and 12) in the Australian Capital Territory, where the author taught physics and biology.