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11.
The Science Co-op is a local systemic change project that connects eight regional clusters of elementary schools in rural Missouri and Iowa in the USA. These clusters are comprised of 38 school districts distributed over 40,000 square miles and include more than 1,400 teachers and 20,000 elementary school students. The project stresses inquiry science in the classroom and involves investigating science ideas using a constructivist approach and cross-curricular connections. Within the frameworks of the Science Co-op project a technology known as Interactive Television (ITV) allows for almost real-time interaction (a 3–5 second delay) within the state boundaries of Missouri and Iowa, respectively. The primary goals of the ITV sessions are to enhance the science content and science pedagogical knowledge among the population of elementary school teachers that they may have lacked in their prior education, and to reinforce and extend instructional strategies emphasized in this local systemic change project. In this study the participants' self-reported learning and reactions to live ITV sessions and videotaped, delayed broadcast of ITV sessions were compared. Regression analysis results show teaching experience's influence on overall satisfaction with ITV (p<0.05) while mode attended, perceived technical difficulty, preferred mode, and perceived new skills or content learned in the session entered the regression equation at p=.000. Further t-tests suggested p>0.05 for perceived new skills and content learned on the different modes of communication.  相似文献   
12.
Classroom-based assessments have the potential to enhance validity by facilitating the assessment of important skills that are difficult to assess in written examinations. Such assessments tend to be marked by teachers. To ensure consistent marking standards, quality assurance procedures are needed. In the context of continued debate over the robustness of assessment by teachers, this research aimed to provide insights into the cognitive and social processes involved in the moderation of project work in General Certificate of Secondary Education qualifications (taken by many 16 year olds in England). The research involved nine examiners across three subject areas ‘thinking aloud’ whilst moderating the marks given to six students (treated as a mock school). The participants were also interviewed. These methods were chosen to provide an in-depth look at the judgement processes involved. The research provides an improved understanding of moderation judgements and how aspects of this process relate to existing theories of judgement. Improving our understanding of the judgement processes involved when an examiner moderates teacher marking can help to evaluate the appropriateness of this assessment method, may contribute to debate on whether teacher marking can be sufficiently well verified by quality assurance procedures, and may inform moderation practice.  相似文献   
13.

Orthographic knowledge is the understanding of how spoken language is represented in print. However, the terms used to describe the two levels of orthographic knowledge, lexical and sublexical orthographic knowledge, have been variably defined and inconsistently measured, potentially contributing to discrepancies in research findings. Dissimilarities in how orthographic knowledge has been operationally defined and measured and the associated differences in tasks used to assess that construct are discussed. As part of that discussion, we relate how some measures assess either implicit or more explicit levels of orthographic knowledge. Using current theories and the existing research, we next provide an argument for how initial development of sublexical orthographic knowledge occurs before lexical orthographic knowledge. Suggestions are provided for what researchers might do in the future to help move the field toward a better understanding of orthographic knowledge. Strategies for assessing orthographic knowledge in literacy research are offered.

  相似文献   
14.
Children's lie-telling is surprisingly understudied among children with significant behavioral problems. In the present study, experimental paradigms were used to examine antisocial lie-telling among ethnically diverse 5- to 10-year-old children with disruptive behavior disorders (DBD;= 71) and a typically developing (TD) comparison sample (= 50) recruited from a southeastern state from 2013 to 2014. Children completed two games that measured the prevalence and skill of their lies: (a) for personal gain and (b) to conceal wrongdoing. Children with DBD were more likely to lie for personal gain than TD children. With age, children were more likely to lie to conceal wrongdoing, but the reverse was true regarding lies for personal gain. Results advance knowledge concerning individual differences in children's lie-telling.  相似文献   
15.
Developmental cognitive neuroscience highlights the importance of interactions between children and their environment. As young children spend increasing time in childcare, it is key to investigate the impact of “maths‐talk” and maths provisions in preschools. Qualitative insights from early educators indicate a greater bias toward counting activities than would be expected given the Early Years curriculum. In addition, we quantified the observed breadth of preschool practitioners' maths language (e.g., place‐value language), setting‐based maths provisions (e.g., quality of maths‐related activities), and their relation with children's early numeracy skills. In settings with greater practitioners' breadth of maths language, children display greater cardinality skills although our data call for the further investigation of parental socioeconomic status and education. We conclude with a discussion on the need to operationalize children's maths learning environments as diversely as possible. Enriching practitioners' skill sets may be an effective and needed way of improving early maths outcomes.  相似文献   
16.
17.
Several authors have suggested reasons for children transferring to new schools, and they have hypothesized that the reasons may affect the nature and tenure of the transition process. The present study investigated the reasons parents of 451 elementary school children gave for changing schools and demonstrated that the reasons influenced children's ability to adjust to their new schools. Specifically, children transferring because their old school closed were more competent academically and had a higher average socioeconomic status than did the other groups. On the other hand, those transferring because of changing households had poorer academic performance and more stressful life events on average than the other groups. Finally, reasons for moving not only vary according to race, but the effects of the reasons are different for each racial group. Implications for school personnel seeking to integrate transfer students into their schools effectively are discussed.  相似文献   
18.
The purpose of this study was to compare submaximal physiological responses and indices of mechanical efficiency between asynchronous and synchronous arm ergometry. Thirteen wheelchair-dependent trained athletes performed eight steady-state incremental bouts of exercise (0 to 140 W), each lasting 4 min, using synchronous and asynchronous arm-cranking strategies. Physiological measures included oxygen uptake (VO2), heart rate, and blood lactate concentration. The power outputs corresponding to fixed whole blood lactate concentrations of 2.0 to 4.0 mmol x l(-1) were calculated using linear interpolation. Mechanical efficiency indices - gross efficiency, net efficiency, and work efficiency - were also calculated. An analysis of variance with repeated measures was applied to determine the effect of crank mode on the physiological parameters. Oxygen uptake was on average 10% lower (P < 0.01), and both net efficiency (P < 0.01) and gross efficiency (P < 0.01) were higher, during the asynchronous strategy at both 60 and 80 W (gross efficiency: 16.9 +/- 2.0% vs. 14.7 +/- 2.4% and 17.5 +/- 1.8% vs. 15.9 +/- 2.6% at 60 and 80 W respectively). There were no differences in heart rate, blood lactate concentration or power output at either of the blood lactate reference points between the asynchronous and synchronous strategies (P > 0.05). In conclusion, test specificity is an important consideration. If a synchronous strategy is to be adopted, it is likely to result in lower efficiency than an asynchronous strategy. The exercise testing scenario may help dictate which method is ultimately chosen.  相似文献   
19.
There have been many conflicting observations between the linear or curvilinear decline in maximal heart rate (HRmax) with age. The aim of this study was to determine if linear or curvilinear equations would better describe the decline in HRmax with age in individuals of differing cardiorespiratory fitness (CRF) levels. Treadmill cardiopulmonary exercise test (CPX) results from participants (1510 men and 1134 women; 18–76 years) free of overt cardiovascular disease were retrospectively examined using cross-sectional and longitudinal study designs. Participants completing ≥2 CPX with ≥1 year between test dates were included in the longitudinal analysis (325 men and 150 women). Linear and quadratic regressions were applied to age and HRmax for the whole cohort and respective CRF groups (high, moderate, and low, relative to age and gender normative values). To test for differences among linear, quadratic, and polynomial equations, the change in R2 (cross-sectional analysis) and Bayesian information criterion (BIC) (longitudinal analysis) from the linear to the more complex models were calculated. The quadratic or polynomial regression in the cross-sectional analysis, marginally improved the variance in HRmax explained by age compared to the linear regression for the whole cohort (0.2%), moderate fit group (0.3%), and low fit group (0.8%). With no improvements in the high fit group. BIC did not improve for any CRF category in the longitudinal analysis. In conclusion, the minimal differences among linear, quadratic, and polynomial equations in the respective CRF groups, emphasizes the use of linear prediction equations to estimate HRmax.  相似文献   
20.
The role of recordkeeping in our personal and professional lives is rarely perceived as a topic of mainstream interest outside the world of professional records managers and archivists. While corporate records management has been written about throughout the recordkeeping literature, there has traditionally been less focus on what McKemmish describes as the role of ‘personal recordkeeping cultures’. Yet personal recordkeeping can play a role in creating a sense of belonging, especially for children and families. For example, within the field of Australian early childhood education, one of the key policy documents replicates a similar theme with the aptly titled ‘Early Years Learning Framework – Belonging, Being & Becoming’. By reflecting on her own personal recordkeeping story and that of her family, the author aims to explore the purpose of recordkeeping awareness and the role this plays in the wider profession. This article will draw upon relevant recordkeeping theory as well as some key early childhood education literature to introduce how ‘recordkeeping awareness’ could be reconceptualised as ‘recordkeeping literacy’. She will also explore what impact a reconceptualised understanding of continuum-based ‘recordkeeping literacy’ may have upon evolving recordkeeping theory and practice.  相似文献   
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