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121.
ABSTRACT

Participation in youth sport is positively associated with physical fitness and performance. The purpose of the current study was to examine if physical fitness measures during childhood and early adolescence predicted high school sport participation. Participants included youth in the Michigan State University Motor Performance Study. Measures consisted of the endurance shuttle run, Wells sit-and-reach, jump and reach, standing long jump, agility shuttle run and 30-yard dash. Individual, generalized estimating equation models were used to estimate the association between each measure and the odds of participating in high school sport. For both sexes, the endurance shuttle run and agility shuttle run were related to sport participation. For boys only, the long jump and 30-yard dash were also associated with sport participation. Better physical fitness and performance across several dimensions in childhood, including those related to motor skills, enhanced the likelihood of sport participation in high school.  相似文献   
122.
Researchers have shown that students' perceptions of mathematics assignments could be improved by interspersing additional briefer, easier problems (e.g., Logan and Skinner, 1998). The current study was designed to extend this research to reading tasks. Seventh‐grade students read out loud both a control passage and a similar experimental passage that contained additional interspersed brief (i.e., 16 words), easy (i.e., first‐grade reading level) paragraphs. Students then selected the passage that would require the least effort to read and the least time to read. Students also indicated the passage they liked most (preference) and the passage that they would like to read again (choice). Significantly more students selected the control passage as requiring less time to read, but no differences were found for preference, choice, or effort selections. The results failed to confirm earlier research on the interspersal procedure, thus our findings have applied and theoretical implications regarding causal variables that may account for the effectiveness of the interspersal procedure. Specifically, the current study suggests that the interspersal procedure may improve assignment perception only when the procedure increases discrete task‐completion rates. © 2001 John Wiley & Sons, Inc.  相似文献   
123.
Teaching has been described as an emerging community of practice. Within such professional communities, the processes of reflection and collaborative dialogue, or critical transformative dialogue, are central to the maintenance and improvement of professional practice for individuals, and the field. This paper reports on the challenges experienced by a group of first-year pre-service teachers engaging in a process of reflection and critique with peers, as they participated in a program focused on the development of core practices of teaching. These pre-service teachers' responses indicated their growing understanding of the importance of engaging in ongoing critical dialogue, as part of the “unnatural” aspects of teaching. The paper concludes with a reflection on the value of feedback from the earliest stages of professional learning.  相似文献   
124.
The aim of this article is to gain insights into the economic impacts of the Winter Youth Olympic Games (YOG). Taking the example of Innsbruck 2012 (YOG 2012)—the first ever Winter YOG—the economic dimension of the event is comprised by calculating the primary economic impulse as well as the induced economic impulse (total economic effect). For the purpose of this study the region (Tirol) and the period of time (13th to 22th January 2012) were chosen.  相似文献   
125.
This article analyses findings from two studies conducted collaboratively across two educational settings, New Zealand and England, in 2001–2002. These studies examined the impact of national educational policy reforms on the nature of primary teachers’ work and sense of their own professionalism and compared these impacts across the two countries. Adopting a policy ethnography approach, using in‐depth interview data from samples of teachers in each country, it is argued that there have been discursive shifts in the meaning of the three key terms, autonomy, altruism and knowledge, embodied in the classical professionalism triangle. These shifts reflect policy‐makers’ moves from a ‘professional‐contextualist’ conception of teacher professionalism towards the ‘technocratic‐reductionist’ conception that accompanies neo‐liberal educational reforms in many countries. Teachers in both countries experienced increasing constraints on their autonomy as they became far more subject to ‘extrinsic’ accountability demands. Whether these demands were perceived as enhancing or diminishing teacher professionalism depended on the manner in which they were filtered through the profession’s defining quality, namely teachers’ altruistic concerns for the welfare of the children in their care.  相似文献   
126.
In Ireland and the UK it is accepted practice that agencies with formal responsibility for delivering school examinations allow examination candidates, and in many cases their teachers, to see their examination papers once they have been marked. Returned papers can carry various pieces of information; as well as the total score given for a performance, additional information is included in the form of the annotations left on the examination paper by the marking examiner. As far as we know there has been no research into how this information affects those who come into contact with it. The study uses teacher interview and survey data to explore whether a sociocultural approach to analysis can illuminate the factors that might influence their interpretation of those annotations. These analyses suggest that a key influence on the valid interpretation of an examiner's annotations is a teachers' involvement in examining activity. The analyses support further conceptualisation that these teacher-examiners' interpretative capacity is related to their positioning in a boundary zone between two different activity systems.  相似文献   
127.
How can we use ICT to enhance the quality of pupil learning? The case study below deliberately embedded ICT within the context of an existing scheme of work to develop 11–12 year olds’ understanding of the skills and processes of historical investigation. It also mapped onto the existing teaching styles of the teachers involved, and reflected their orientation—beliefs and values. The role for the ICT was to present the pupils with a problem that would intrigue, excite and motivate them. Accordingly, we asked them to act in role as assistants to Harry and Hermione in investigating the strange death of Sam Woodhouse in 1822. The pupils carried out the investigation using a hyperlinked set of clues. They had undertaken two identical kinds of investigation earlier in the year. One was a murder mystery, the other the disappearance of the Princes in the Tower in 1483. For both these mysteries the clues were on cards. Comparisons of the results of the ICT mystery with those of the earlier two investigations suggest that the hyperlink version was equally effective in terms of developing understanding, with some clear advantages in developing pupils’ overall understanding of the problem and ability to make links between disparate clues and pieces of information.  相似文献   
128.
The aim of this study was to assess the effect of time of day on physiological responses to running at the speed at the lactate threshold. After determination of the lactate threshold, using a standard incremental protocol, nine male runners (age 26.3 - 5.7 years, height 1.77 - 0.07 m, mass 73.1 - 6.5 kg, lactate threshold speed 13.6 - 1.6 km· h -1 ; mean - s ) completed a standardized 30 min run at lactate threshold speed, twice within 24 h (07:00- 09:00 h and 18:00-21:00 h). Core body temperature, heart rate, minute ventilation, oxygen uptake, carbon dioxide expired, respiratory exchange ratio and capillary blood lactate were measured at rest, after a warm-up and at 10, 20 and 30 min during the run. In addition, the rating of perceived exertion was reported every 10 min during the run. Significant diurnal variation was observed only for body temperature (36.9 - 0.9°C vs 37.3 - 0.3°C) and respiratory exchange ratio at rest (0.86 - 0.01 vs 0.89 - 0.07) ( P ? 0.05). Diurnal variation persisted for body temperature throughout the warm-up (37.1 - 0.2°C vs 37.5 - 0.3°C) and during exercise (36.2 - 0.6°C vs 38.6 - 0.4°C), but only during the warm-up for the respiratory exchange ratio (0.85 - 0.05 vs 0.87 - 0.02) ( P ? 0.05). The rating of perceived exertion was significantly elevated during the morning trial (12.7 - 0.9 vs 11.9 - 1.2) ( P ? 0.05). These findings suggest that, despite the diurnal variation in body temperature, other physiological responses to running at lactate threshold speed are largely unaffected. However, a longer warm-up may be required in morning trials because of a slower increase in body temperature, which could have an impact on ventilation responses and ratings of perceived exertion.  相似文献   
129.
130.
Judith Graham 《Literacy》2000,34(2):61-67
Where authors and illustrators exercise rigorous constraint with their texts, with neither replicating the work that the other can portray more effectively, they are at their most creative and they make picture books to which readers are repeatedly drawn because of the inherent and deeply satisfying challenges offered. Moreover, the allure is not just to children; teachers find that such texts draw from them their most creative ideas for ways of working with children. Three picture books are examined in terms of their strengths and potential activities. Conclusions are drawn which seek to justify the sharing of such picture books in terms of imaginative empowerment and lasting messages about reading.  相似文献   
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