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41.
Students' questions and discursive interaction: Their impact on argumentation during collaborative group discussions in science 总被引:1,自引:1,他引:0
This study investigated the potential of students' written and oral questions both as an epistemic probe and heuristic for initiating collaborative argumentation in science. Four classes of students, aged 12–14 years from two countries, were asked to discuss which of two graphs best represented the change in temperature as ice was heated to steam. The discussion was initiated by asking questions about the phenomenon. Working in groups (with members who had differing viewpoints) and guided by a set of question prompts, an argument sheet, and an argument diagram, students discussed contrasting arguments. One group of students from each class was audiotaped. The number of questions written, the concepts addressed, and the quality of written arguments were then scored. A positive correlation between these factors was found. Discourse analysis showed that the initial focus on questions prompted students to articulate their puzzlement; make explicit their claims and (mis)conceptions; identify and relate relevant key concepts; construct explanations; and consider alternative propositions when their ideas were challenged. Productive argumentation was characterized by students' questions which focused on key ideas of inquiry, a variety of scientific concepts, and which made explicit reference to the structural components of an argument. These findings suggest that supporting students in productive discourse is aided by scaffolding student questioning, teaching the criteria for a good argument, and providing a structure that helps them to organize and verbalize their arguments. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:883–908, 2010 相似文献
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The government's proposals for a student loans scheme has been inadequately thought-out and researched. Mr Baker's commitment to increase participation in higher education, and hence to increase the 'outflow' of much-needed graduates, may well be undermined by the proposed scheme. In particular, what has been missing in the debate on loans has been a regional perspective. Northern Ireland offers a useful example in that, despite being the most economically depressed region in the United Kingdom, recent participation rates have already come close to the rate Mr Baker is aiming for in other parts of the country.
We cannot predict the effect of the loans scheme on participation rates. However, in present circumstances and under present policies, our guess, based on extensive survey research, is that the proposed loans scheme will diminish participation rates, particularly among those Mr Baker has targeted for special attention. Secondly, the cost of the proposed scheme to the government will be much higher than envisaged. Regional evidence from Northern Ireland suggests that large numbers of graduates will take a long time to earn sufficient salaries to rise above the 85 per cent threshold, if, in fact, they ever do. 相似文献
We cannot predict the effect of the loans scheme on participation rates. However, in present circumstances and under present policies, our guess, based on extensive survey research, is that the proposed loans scheme will diminish participation rates, particularly among those Mr Baker has targeted for special attention. Secondly, the cost of the proposed scheme to the government will be much higher than envisaged. Regional evidence from Northern Ireland suggests that large numbers of graduates will take a long time to earn sufficient salaries to rise above the 85 per cent threshold, if, in fact, they ever do. 相似文献
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Higher education in Britain displays a diversity of patterns of participation and provision. The establishment of funding councils for England, Scotland, Wales; together with the advisory body the Northern Ireland Higher Education Council (NIHEC), for Northern Ireland, will further increase this diversity. As these councils go about their work, a valuable exercise might be conducted by recording the patterns of participation in the early 1990s. Each council confronts a different tradition, with different levels of participation, and with somewhat different issues on their policy agenda. The NIHEC oversees a small two university system, with a high Northern Irish age participation index, and where affirmative action and equal opportunity measures have a particular prominence. 相似文献
49.
R. D. Osborne 《Higher Education Quarterly》2003,57(4):376-395
This paper reviews the provision of higher education courses in the further education sector in Northern Ireland. It charts the evolution of policy through the 1990s by examining major policy documents. It notes the chronic absence of reliable statistical and research evidence during this period. The available statistical evidence is reviewed. Key themes are identified including: localism, ‘non‐evidence based policy making’, higher education versus the demand for skills and community relations and equality. The innovative concept, now it would appear doomed, of the Springvale campus for west Belfast is examined. Finally, the paper notes that there is an urgent need to provide strategic direction to the further education sector as a whole. 相似文献
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Roger Osborne 《科学教学研究杂志》1976,13(6):525-531