Arguing to learn and learning to argue: Case studies of how students' argumentation relates to their scientific knowledge

In this study we investigated junior high school students' processes of argumentation and cognitive development in science and socioscientific lessons. Detailed studies of the relationship between argumentation and the development of scientific knowledge are rare. Using video and audio documents of small group and classroom discussions, the quality and frequency of students' argumentation was analyzed using a schema based on the work of Toulmin ( 1958 ). In parallel, students' development and use of scientific knowledge was also investigated, drawing on a schema for determining the content and level of abstraction of students' meaning‐making. These two complementary analyses enabled an exploration of their impact on each other. The microanalysis of student discourse showed that: (a) when engaging in argumentation students draw on their prior experiences and knowledge; (b) such activity enables students to consolidate their existing knowledge and elaborate their science understanding at relatively high levels of abstraction. The results also suggest that students can acquire a higher quality of argumentation that consists of well‐grounded knowledge with a relatively low level of abstraction. The findings further suggest that the main indicator of whether or not a high quality of argument is likely to be attained is students' familiarity and understanding of the content of the task. The major implication of this work for developing argumentation in the classroom is the need to consider the nature and extent of students' content‐specific experiences and knowledge prior to asking them to engage in argumentation. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 45: 101–131, 2008     

Impact of severity of autism and intervention time‐input on child outcomes: comparison across several early interventions

In this article, written by Phil Reed and Lisa Osborne, both from Swansea University, the impact of severity of autism, and the time‐input of the treatment programme, on the outcome effectiveness for four early interventions for individuals on the autism spectrum was explored. The four interventions studied were applied behaviour analysis (ABA), special nursery, an adapted portage intervention, and a local authority approach. Sixty‐six children (aged from two years six months to four years) were studied over nine months, in terms of their intellectual, educational and adaptive behavioural functioning. Children undergoing the ABA approach demonstrated greater gains in functioning (especially in educational functioning). There were differences in the way that autism severity and intervention time‐input impacted on the different early intervention programmes. For special nursery, portage and local authority approaches, the gains made by the children were inversely related to the severity of their autism and directly related to time‐input. In contrast, the converse was true for the ABA approach. These data are discussed with respect to their implications for choosing an intervention strategy for a child on the autism spectrum.     

Students' questions and discursive interaction: Their impact on argumentation during collaborative group discussions in science

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     

Student Loans: a Northern Ireland Perspective

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.