Maximising the language and learning link in computer learning environments     

Catherine McLoughlin  & Ron Oliver 《British journal of educational technology : journal of the Council for Educational Technology》1998,29(2):125-136

In studies on the implementation and educational uses of computers there are reports of changes in students' behaviour as a result of working with computers (Rowe, 1993; Crook, 1994). Social, collaborative and dialogic exchanges have been observed as students engage in tasks around computers. This research provides evidence that the computer is a social facilitator in the sense that it provides opportunities for collaboration, group work and interaction which fosters cognitive change (Wild, 1995).
This article recognises the social role of the computer, and supports the view that computers can be used to facilitate learning through language. There is growing awareness that if we are to realise the full potential of computers in education, consideration must be given to their role as catalysts in the learning process, rather than technological tools (Hawkridge, 1990). Computer assisted learning has progressed through many phases, and through investigation of underlying theoretical frameworks it is possible to recognise the change of focus from individual accounts of learning to social perspectives.
Theoretical frameworks which emphasise the social dimensions of learning (Vygotsky, 1978) legitimise the link between computers, language use and learning and indicate that computers must be integrated into the social life of classrooms if their pedagogical benefits are to be realised.  相似文献   

Teaching About Sound: A Select Historical Examination of Research     

McGinnis  J. Randy  Oliver  J. Steve 《Science & Education》1998,7(4):381-401

The teaching of the science topic sound, a popular topic in science instruction, is selectively analyzed over the past century using evidence excerpted from a prominent teacher practitioner journal (School Science And Mathematics). Shifting innovative recommendations on how teachers of science should teach the sound topic are identified in the categories of content and pedagogy. Historical connections to the scientific development of sound, identification of what constitutes the subject matter of sound, recommended general pedagogical strategies, and best practices for teaching strategies associated with the sound concept are examined. Discussion relates to the influence of contextual factors in a given time period (social and theoretical) on the design of curriculum materials used to guide instructional practice. One implication for science teacher education is the need for science teachers to develop an historically and philosophically grounded perspective by examining both the teaching practices on a science topic over an extended time and the historical scientific development of the science topic.  相似文献   

ATriple Iron triathlon leads to a decrease in total body mass but not to dehydration     

Knechtle B  Knechtle P  Rosemann T  Oliver S 《Research quarterly for exercise and sport》2010,81(3):319-327

A loss in total body mass during an ultraendurance performance is usually attributed to dehydration. We identified the changes in total body mass, fat mass, skeletal muscle mass, and selected markers of hydration status in 31 male nonprofessional ultratriathletes participating in a Triple Iron triathlon involving 11.4 km swimming, 540 km cycling and 126.6 km running. Measurements were taken prior to starting the race and after arrival at the finish line. Total body mass decreased by 1.66 kg (SD = 1.92; -5.3 kg to +1.2 kg; p < .001), skeletal muscle mass by 1.00 kg (SD = 0.90; -2.54 kg to +2.07 kg; p < .001), and fat mass by 0.58 kg (SD = 0.78; -1.74 kg to +0.87 kg; p < .001). The decrease in total body mass was associated with the decrease in skeletal muscle mass (r = .44; p < .05) and fat mass (r = .51; p < .05). Total body water and urinary specific gravity did not significantly change. Plasma urea increased significantly (p < .001); the decrease in skeletal muscle mass and the increase in plasma urea were associated (r = .39; p < .05). We conclude that completing a Triple Iron triathlon leads to decreased total body mass due to reduced fat mass and skeletal muscle mass but not to dehydration. The association of decrease in skeletal muscle mass and increased plasma urea suggests a loss in skeletal muscle mass.  相似文献   

How can clusters sustain performance? The role of network strength, network openness, and environmental uncertainty   总被引：2，自引：0，他引：2  

Andreas B. Eisingerich  Simon J. Bell  Paul Tracey 《Research Policy》2010,39(2):239-253

This paper draws on social network theory to develop a model of regional cluster performance. We suggest that high performing regional clusters are underpinned by (1) network strength and (2) network openness, but that the effects of these on the performance of a cluster as a whole are moderated by environmental uncertainty. Specifically, the positive effects of network openness on cluster performance tend to increase as environmental uncertainty increases, while the positive effects of network strength on cluster performance tend to decrease as environmental uncertainty increases. Our findings have theoretical and practical implications for social network research in general, and cluster research in particular.  相似文献   

Interpretive issues with the Roberts Apperception Test for Children: Limitations of the standardization group     

Nancy L. Bell  Richard J. Nagle 《Psychology in the schools》1999,36(4):277-283

This study investigated the validity of the Roberts Apperception Test for Children (RATC) with an elementary school sample by examining the appropriateness of the standardization norms with other nonclinical samples. A sample of 86 children, ages 8–11 years, completed the RATC. Analyses revealed that the current sample of nonclinical children differed significantly from the standardization sample on six of the eight Adaptive Scales and three of the five Clinical Scales. Findings suggest that the children in this study form a separate and distinct group from the well‐adjusted children upon which the RATC scales were normed and supports previous research that suggests the standardization of the RATC is inadequate. The current findings strongly suggest that the norms for the RATC not be used for clinical diagnosis until restandardization is completed. © 1999 John Wiley & Sons, Inc.  相似文献   

The impact of library services in primary care trusts in NHS North West England: a large‐scale retrospective quantitative study of online resource usage in relation to types of service     

Katherine Bell  Steven William Glover  Colin Brodie  Anne Roberts  Colette Gleghorn 《Health information and libraries journal》2009,26(2):136-142

Background: Within NHS North West England there are 24 primary care trusts (PCTs), all with access to different types of library services. This study aims to evaluate the impact the type of library service has on online resource usage. Methodology: We conducted a large‐scale retrospective quantitative study across all PCT staff in NHS NW England using Athens sessions log data. We studied the Athens log usage of 30 381 staff, with 8273 active Athens accounts and 100 599 sessions from 1 January 2007 to 31 December 2007. Results: In 2007, PCTs with outreach librarians achieved 43% penetration of staff with active Athens accounts compared with PCTs with their own library service (28.23%); PCTs with service level agreements (SLAs) with acute hospital library services (22.5%) and with no library service (19.68%). This pattern was also observed when we looked at the average number of Athens user sessions per person, and usage of Dialog Datastar databases and Proquest full text journal collections. Discussion: Our findings have shown a correlation of e‐resource usage and type of library service. Outreach librarians have proved to be an efficient model for promoting and driving up resources usage. PCTs with no library service have shown the lowest level of resource usage.  相似文献   

Learning from Second Life     

David Bell 《British journal of educational technology : journal of the Council for Educational Technology》2009,40(3):515-525

There is currently widespread interest in exploring the opportunities to develop learning that can be delivered in three-dimensional multiuser virtual environments (3-D MUVEs). In this paper, I argue for the need to conduct research into the emerging cultures of use in 3-D MUVEs, focussing on the example of Second Life. Drawing on social and cultural studies of 3-D MUVEs, the paper briefly explores four issues in Second Life which have profound implications for the transplanting of learning: (1) the emerging 'virtual vernacular' of Second Life builds, (2) the development of a capitalist economy within and beyond Second Life, (3) the phenomenon of 'griefing', and (4) the need to take account of the everydayness of Second Life. Only by attending to the cultures of use in 3-D MUVEs—learning from Second Life—can we begin to contemplate the potential for learning in Second Life.  相似文献   

Developing math automaticity using a classwide fluency building procedure for middle school students: A preliminary study     

Philip K. Axtell  R. Steve McCallum  Sherry Mee Bell  Brian Poncy 《Psychology in the schools》2009,46(6):526-538

To investigate the influence of an innovative math fluency intervention, 36 middle‐school students were randomly assigned to either an experimental (the Detect, Practice, Repair [DPR]) or control condition (reading intervention). After covarying pretest scores, the DPR treatment produced a significantly higher (p = .016) adjusted mean (M) math score (M = 47.53, standard deviation [SD] = 3.26) for the intervention group when compared to the control group (M = 33.31, SD = 4.39). The intervention is described so that teachers and consulting school psychologists can implement the steps for individuals or groups (e.g., in a multitiered response to intervention model). © 2009 Wiley Periodicals, Inc.  相似文献   

Childhood abuse and the content of delusions     

Oliver J. Mason  Emma Brett  Miriam Collinge  Helen Curr  John Rhodes 《Child abuse & neglect》2009,33(4):205-208

  相似文献   

A value‐added study of the impact of science curriculum reform using the National Pupil Database     

Jacqueline Bell  Jim Donnelly  Matt Homer  Godfrey Pell 《British Educational Research Journal》2009,35(1):119-135

This article compares the examination performance of students following General Certificate of Secondary Education Applied Science and Double Award science on a value‐added basis. It uses data from the National Pupil Database, which are analysed by a variety of methods, including multilevel modelling. It argues that the claims made within Office for Standards in Education reports on the impact of the new Applied Science course are inaccurate, and in some cases positively wrong. The authors' analysis, based on the second (2003–05) cohort of students following the course, shows that students of lower attainment at Key Stage 3 appear to perform better than would have been predicted from their Key Stage 3 attainment, but that higher attaining pupils perform less well. Schools offering Applied Science show greater diversity in the value‐added effects they produce than they do with Double Award science. The article argues that analyses of this kind are of value in seeking to understand the impact of curriculum reform, but that they are dangerous as a generalized guide for policy. They must be complemented by work in schools in which the sources of the effects observed and of school diversity are examined.  相似文献