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81.
Elizabeth Murphy María A. Rodríguez‐Manzanares Michael Barbour 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(4):583-591
This paper presents the results of an inductive, interpretive analysis of the perspectives of 42 Canadian high school distance education (DE) teachers on asynchronous and synchronous online teaching. The paper includes a conceptual overview of the affordances and constraints of each form of teaching. Findings provided insight into the following aspects of asynchronous and synchronous online teaching: degree of use; the tools used; the contexts in which each occur; students' preferences; and limitations. Pedagogy emerged as more important than media for both asynchronous and synchronous online teaching. Synchronous online teaching relied on teacher‐ rather than student‐centred approaches. Asynchronous online teaching provided support for self‐paced, highly independent forms of secondary DE supplemented by synchronous online teaching for answering questions and troubleshooting. 相似文献
82.
Ian McShane 《Discourse: Studies in the Cultural Politics of Education》2011,32(3):383-397
In recent years public libraries have experimented with user-generated or community-contributed content through the interactive tools of Web 2.0. For some commentators this not just establishes a new relationship between libraries and their publics, but signals the end of information hegemony and an ‘expert paradigm’. Such claims need to be treated with caution. This article argues that public library experiments with user-generated content can be more usefully analysed in the context of wider institutional mandates around literacy, civic engagement and access. This article critically examines some recent library developments in this field, with a particular focus on Australian libraries. 相似文献
83.
This paper explores and challenges the rationale for current, mainstream approaches to teachers’ continuing professional development (CPD) within schooling systems. Such approaches are significantly influenced by neoliberal and managerial pressures, evident in advocacy for generic, individualistic models of teacher learning, often focused on specific state-sanctioned domains. The paper draws upon a précis of recent action research literature, and empirical research from Sweden, to argue for an alternative paradigm, based on the practices and principles of participatory and collaborative action research. Action research is not presented as a simplistic ‘method’ which can be ‘applied’ regardless of context, but is explicitly focused on situated, specific, local sites. While more managerial and neoliberal practices can close down debates necessary for effecting real improvements in practice, evidence suggests action research, in its emancipatory iterations, enables a rich conception of educational practice which cannot be ‘managed’ into existence by a simplistic application of ‘what works.’ 相似文献
84.
Carol Murphy 《British Educational Research Journal》2011,37(1):147-161
Efforts to meet the needs of children's learning in arithmetic has led to an increased emphasis on the teaching of mental calculation strategies in England. This has included the adoption of didactical tools such as the empty number line (ENL) that was developed as part of the realistic mathematics movement in the Netherlands. It has been claimed that the English use of the ENL differs from that of the Dutch. In this study curriculum guidance materials are examined to investigate these differences. Two examples of teaching sequences are provided to illustrate them further. It is proposed that the different uses stem from different pedagogical principles. The implications of the English use are discussed in relation to the presentation of mental calculation strategies in an algorithmic way. 相似文献
85.
86.
This study addresses the epidemiology of knee injuries in adolescent males. Data were collected prospectively from 41 Premiership soccer academies over a 5 year period from July 2000 to June 2005. A total of 12,306 player seasons were registered in the U9 to the U16 age categories with a total of 1750 recordable injuries specific to the knee joint. There was a mean incidence of 0.71 (95% confidence interval ± 0.05) knee injuries per player per year, and a median of 17 (inter-quartile range 9-38) training days and 2 (inter-quartile range 1-4) matches missed per knee injury. Knee injuries were found to be most common in the 14-16 year age group. Six hundred and nine (35% of total) injuries were classed as severe resulting in more than 28 days' absence. Injuries were more likely to be sustained in a competitive or match-play environment (862 or 52%) than in training (796 or 48%), and a non-contact mechanism was implicated in 823 (55%) of recorded cases. Peaks in injury numbers were seen in early season and subsequent to the winter break. Sprain was the most common diagnosis recorded, with the medial collateral ligament affected in 23% of all knee injuries. Knee injuries are common in elite youth footballers. In this uninsured age group, it could be argued that earlier medical intervention may reduce long-term damage to the immature skeleton. 相似文献
87.
In the present study, we examined the independent and combined effects of an inspiratory muscle warm-up and inspiratory muscle training on intermittent running to exhaustion. Twelve males were recruited to undertake four experimental trials. Two trials (Trials 1 and 2) preceded either a 4-week training period of 1 × 30 breaths twice daily at 50% (experimental group) or 15% (control group) maximal inspiratory mouth pressure (PImax). A further two trials (Trials 3 and 4) were performed after the 4 weeks. Trials 2 and 4 were preceded by a warm-up: 2 × 30 breaths at 40% PImax. Pre-training PImax and distance covered increased (P < 0.05) similarly between groups after the warm-up (~11% and ~5-7% PImax and distance covered, respectively). After training, PImax increased by 20 ± 6.1% (P < 0.01; d = 3.6) and 26.7 ± 6.3% (P < 0.01; d = 3.1) when training and warm-up were combined in the experimental group. Distance covered increased after training in the experimental group by 12 ± 4.9% (P < 0.01; d = 3.6) and 14.9 ± 4.5% (P < 0.01; d = 2.3) when training and warm-up interventions were combined. In conclusion, inspiratory muscle training and inspiratory muscle warm-up can both increase running distance independently, but the greatest increase is observed when they are combined. 相似文献
88.
89.
Within the self-determination theory (Deci & Ryan, 2000) framework, research has considered the consequences of coaches' autonomy supportive and controlling behaviors on various athlete outcomes (e.g., motivation and performance). The antecedents of such behaviors, however, have received little attention. Coaches (N = 443) from a variety of sports and competitive levels completed a self-report questionnaire to assess their psychological need satisfaction, well-being and perceived interpersonal behaviors toward their athletes. Structural equation modeling demonstrated that coaches' competence and autonomy need satisfaction positively predicted their levels of psychological well-being, as indexed by positive affect and subjective vitality. In turn, coaches' psychological well-being positively predicted their perceived autonomy support toward their athletes, and negatively predicted their perceived controlling behaviors. Overall, the results highlight the importance of coaching contexts that facilitate coaches' psychological need satisfaction and well-being, thereby increasing the likelihood of adaptive coach interpersonal behavior toward athletes. 相似文献
90.
In countries such as the UK, schools have a responsibility to prevent all forms of bullying, including those related to sexual orientation. However, relatively little is known about how schools go about this work successfully. This study aimed to identify how three secondary schools in south London, England, were addressing homophobia. Three different kinds of schools – a co-educational, boys' and girls' school – were selected, each known to have conducted work to counter homophobic bullying. In each school, interviews were conducted with staff and pupils. Work on homophobia and homophobic bullying was said by most staff respondents to be part of a general commitment to countering bullying. Pupils stated that they were keen that homophobic bullying should be tackled – and distinguished bullying from ‘cussing’, ‘taking the mick’ and ‘mucking about’. Work carried out in schools had influenced pupils to consider homophobia and its effects – although the media as well as personal and family relationships were also important in this respect. Findings are discussed with regard to ways in which schools might better align what they do with regard to pupils' own values and understandings about how best to address homophobia and bullying. 相似文献