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141.
This paper focuses on formative assessment in the field of higher education. It examines Bernstein’s work on vertical discourses and knowledge structures with the view to deepening understanding of the concept of assessment for learning. The first part of the paper draws on Vygotsky’s work on concept development and Bernstein’s work on knowledge structures to explain why ‘generalisation’ and ‘hierarchy’ are central in knowledge acquisition. It then explores Bernstein’s claim that, within the vertical discourse, different knowledge structures (hierarchical and horizontal) afford greater or lesser visibility of their epistemic structure, and thus of their evaluation criteria of what counts as a legitimate text. The second part of the paper investigates the ways epistemic expectations are signalled through the practice of evaluation to first‐year university students in a professional education course and proposes that markers do not offer students stuffiest access to recognition rules necessary for producing legitimate texts in the future. Drawing on Maton’s distinction between semantic gravity and semantic density, the paper offers an example of how markers could recast what is present in students’ work to offer students access to key ordering principles in vertical discourses. 相似文献
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144.
New Caledonian (NC) crows are the most sophisticated tool manufacturers other than humans. The diversification and geographical
distribution of their three Pandanus tool designs that differ in complexity, as well as the lack of ecological correlates, suggest that cumulative technological
change has taken place. To investigate the possibility that high-fidelity social transmission mediated this putative ratchet-like
process, we studied the ontogeny of Pandanus tool manufacture and social organization in free-living NC crows. We found that juvenile crows took more than 1 year to reach
adult proficiency in their Pandanus tool skills. Although trial-and-error learning is clearly important, juveniles have ample opportunity to learn about Pandanus tool manufacture by both observing their parents and interacting with artifactual material. The crows’ social system seems
likely to promote the faithful social transmission of local tool designs by both favoring the vertical transmission of tool
information and minimizing horizontal transmission. We suggest that NC crows develop their Pandanus tool skills in a highly scaffolded learning environment that facilitates the cumulative technological evolution of tool designs. 相似文献
145.
Robert J. Noonan Danielle Christian Lynne M. Boddy Pedro F. Saint-Maurice Gregory J. Welk Paul R. Hibbing 《Journal of sports sciences》2019,37(16):1919-1925
This study used accelerometer and self-report measures of overall sedentary time (ST) and screen time behaviours to examine their respective associations with adiposity among UK youth. Participants (Year groups 5, 8, and 10; n=292, 148 girls) wore the SenseWear Armband Mini accelerometer for eight days and completed the Youth Activity Profile, an online report tool designed to estimate physical activity and ST.Stature, body mass and waist circumference were measured to classify adiposity outcomes (overweight/obese and central obesity). One-way between groups ANOVA and adjusted linear, logistic and multinomial logistic regression analyses were conducted. There was a significant main effect of age on total ST across the whole week (F(2, 289)=41.64, p≤0.001). ST increased monotonically across Year 5 (581.09±107.81 min·dˉ¹), 8 (671.96±112.59 min·dˉ¹) and 10 (725.80±115.20 min·dˉ¹), and all pairwise comparisons were significant at p≤0.001. A steep age-related gradient to mobile phone use was present (p≤0.001). ST was positively associated with adiposity outcomes independent of moderate-to-vigorous intensity physical activity (MVPA; p≤0.001). Engaging in >3 hours of video gaming daily was positively associated with central obesity (OR=2.12, p≤0.05) but not after adjustment for MVPA. Results further demonstrate the importance of reducing overall ST to maintain healthy weight status among UK youth. 相似文献
146.
Robert J. Noonan Lynne M. Boddy Youngwon Kim Zoe R. Knowles Stuart J. Fairclough 《Journal of sports sciences》2017,35(21):2067-2072
This study assessed children’s physical activity (PA) levels derived from wrist-worn GENEActiv and hip-worn ActiGraph GT3X+ accelerometers and examined the comparability of PA levels between the two devices throughout the segmented week. One hundred and twenty-nine 9–10-year-old children (79 girls) wore a GENEActiv (GAwrist) and ActiGraph GT3X+ (AGhip) accelerometer on the left wrist and right hip, respectively, for 7 days. Mean minutes of light PA (LPA) and moderate-to-vigorous PA (MVPA) per weekday (whole-day, before-school, school and after-school) and weekend day (whole-day, morning and afternoon–evening) segments were calculated, and expressed as percentage of segment time. Repeated measures analysis of variance examined differences in LPA and MVPA between GAwrist and AGhip for each time segment. Bland–Altman plots assessed between-device agreement for LPA and MVPA for whole weekday and whole weekend day segments. Correlations between GAwrist and AGhip were weak for LPA (r = 0.18–0.28), but strong for MVPA (r = 0.80–0.86). LPA and MVPA levels during all weekday and weekend day segments were significantly higher for GAwrist than AGhip (p < 0.001). The largest inter-device percent difference of 26% was observed in LPA during the school day segment. Our data suggest that correction factors are needed to improve raw PA level comparability between GAwrist and AGhip. 相似文献
147.
Technology professional development for teachers 总被引:2,自引:0,他引:2
This article examines technology professional development for preservice and inservice teachers. It reviews the current status
of technology in our schools, what we know about professional development in the area of technology, and research on efforts
to increase preservice teacher use of technology in appropriate ways. 相似文献
148.
This paper describes and evaluates a project undertaken with parents from an inner city primary school in Hartlepool, UK, devised to help realise children's potential and raise standards. In order to achieve this, it was necessary to create a partnership between parents, school and the child in an environment characterised by the ‘core conditions’ (Rogers, 1957). It was hoped to increase the self‐esteem of the parents and to give them an understanding of the preschool curriculum in order to develop their skills, knowledge and confidence. It was also the intention of the project to involve these, and other parents, in school life and to enable them to take ownership of their own children's education. The multimedia approach involved video, photographs, word processing and press and radio interviews. The process encouraged the fulfilment of the objectives described above. The paper concludes by describing the successful outcomes of the project and indicates some possible developments. 相似文献
149.
James DV Johnston LH Crone D Sidford AH Gidlow C Morris C Foster C 《Journal of sports sciences》2008,26(2):217-224
The aim of this study was to examine participant and scheme characteristics in relation to access, uptake, and participation in a physical activity referral scheme (PARS) using a prospective population-based longitudinal design. Participants (n = 3762) were recruited over a 3-year period. Logistic regression analyses identified the factors associated with the outcomes of referral uptake, participation, and completion (> or = 80% attendance). Participant's age, sex, referral reason, referring health professional, and type of leisure provider were the independent variables. Based on binary logistic regression analysis (n = 2631), only primary referral reason was associated with the PARS coordinator making contact with the participants. In addition to the influence of referral reason, females were also more likely (odds ratio 1.250, 95% confidence interval 1.003-1.559, P = 0.047) to agree to be assigned to a leisure provider. Referral reason and referring health professional were associated with taking up a referral opportunity. Older participants (1.016, 1.010-1.023, P < 0.001) and males were more likely to complete the referral. In conclusion, the PARS format may be less appropriate for those more constrained by time (women, young adults) and those with certain referral reasons (overweight/obesity, mental health conditions). More appropriate targeting at the point of referral could improve participation rates by revealing or addressing barriers that might later result in dropout. 相似文献
150.
Huberty JL Ransdell LB Sidman C Flohr JA Shultz B Grosshans O Durrant L 《Research quarterly for exercise and sport》2008,79(3):374-384
The purpose of this study was to qualitatively examine factors related to physical activity adherence to understand why women continue to participate in long-term exercise after completing a structured exercise program. Data were collected from focus groups, interviews, and e-mails, and analysis used grounded theory. The central category related to physical activity adherence was self-worth. Motivation, activity enjoyment, priorities, body image, ability to access support, and self-regulation skills had an impact on the self-worth of nonadherers and adherers. Women must value themselves enough to continue to participate in physical activity once they start. Exercise and fitness professionals are encouraged to use strategies to increase self-worth and long-term adherence to physical activity. Some recommended strategies include (a) increasing motivation and enjoyment relative to activity, (b) making activity a high priority in a woman's life, (c) improving or deemphasizing body image, (d) increasing a woman's ability to access support, and (e) facilitating the use of self-regulation strategies. This study is the first to examine qualitative perspectives of exercise adherence among women who completed a structured exercise program. Several concepts related to adherence presented in the quantitative literature are confirmed and enhanced in this study. 相似文献