A Twenty‐five Year Old Professional Development Program for the 21st Century     

A.J. Dawson 《Asia-Pacific Journal of Teacher Education》1994,22(1):59-67

Teacher education programs around the globe are undergoing consolidation as the result of extensive, critical reviews. The concepts of faculty associates, school associates, module structure, research agenda and long practica, which were incorporated initially within the Professional Development Program (PDP) at Simon Fraser University (Vancouver, Canada) over 25 years ago, are offered as viable ways of addressing concerns, for greater school/university collaboration and more meaningful practica. Evidence is provided from a recent external review (British Columbia College of Teachers, 1991) regarding the impact of these program attributes on the PDP student teachers, as well as on the faculty members and faculty associates working with them.  相似文献   

The Learner‐Centered Approach to the Co‐Curriculum Model     

Kara L. Fresk  Caleb J. Keith  Hannah C. Keith 《Assessment Update》2020,32(4):1-16

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THE MEDIA AND ENVIRONMENTAL ISSUES IN HONG KONG 1983-95     

Chan  Kara 《Int. Journal of Public Opinion Research》1999,11(2):135-151

This study tests the agenda-setting hypothesis for the environmentalissue in Hong Kong from 1983 to 1995. It was found that theagenda-setting hypothesis was supported for the initial periodof five and a half years. In the subsequent period of sevenand a half years, despite the increased media coverage of theissues, there was a significant drop in the perceived salienceof the environmental problem. This may be due to the dilutionof public attention as a result of diversity in the news agendaand reporting of local environmental problems as ‘soft’news. It was also found that the environmental issue failedto compete with other prominent issues directly affecting thepublic. The mass media played a much less important role inkeeping the environmental issue on the public agenda at thelater stage.  相似文献   

Establishing open and critical discourses in the science classroom: Reflecting on initial difficulties     

Vaille M. Dawson  Dr Peter C. Taylor 《Research in Science Education》1998,28(3):317-336

This paper presents a reflective account of a science teacher’s endeavours to use the referent of critical constructivism to transform her pedagogical practices. The context of her action research was a Year 10 Bioethics unit taught at an independent girls’ school in Perth, Western Australia. Students were provided with opportunities to engage in open and critical discourses; many did, but a few were unwilling to participate in accordance with the teacher’s intentions. We illustrate the disruptive influence of these “dissident” students and explore the reasons for their unwillingness to suspend their disbelief in a new way of knowing (and of being) that involves a radical change in the role of language in the classroom. We conclude with recommendations for epistemological pluralism and the careful use of critical discourse for re-negotiating teaching and learning roles and creating conditions for open discourse to flourish.  相似文献   

The Emergence of Cognitive Maps for Spatial Navigation in 7- to 10-Year-Old Children     

Ford Burles  Irene Liu  Chelsie Hart  Kara Murias  Susan A. Graham  Giuseppe Iaria 《Child development》2020,91(3):e733-e744

Although much is known about adults’ ability to orient by means of cognitive maps (mental representations of the environment), it is less clear when this important ability emerges in development. In the present study, 97 seven- to 10-year-olds and 26 adults played a video game designed to investigate the ability to orient using cognitive maps. The game required participants to reach target locations as quickly as possible, necessitating the identification and use of novel shortcuts. Seven- and 8-year-olds were less effective than older children and adults in using shortcuts. These findings provide clear evidence of a distinct developmental change around 9 years of age when children begin to proficiently orient and navigate using cognitive maps.  相似文献   

A Seven-Year Plan of Support for Students in Teacher Education Programs     

Dawson R. Hancock 《Performance Improvement》1997,36(2):37-39

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Using Wikis to Collaboratively Prepare for Qualifying Examinations:     

Joseph C. DiPietro  Wendy Drexler  Kathryn Kennedy  Vasa Buraphadeja  Feng Liu  Kara Dawson 《TechTrends》2010,54(1):25-32

This article focuses on the experiences of seven Ph.D. students implementing a wiki to collaboratively prepare for qualifying examinations in the educational technology program at a large southeastern university. Concomitant study for such a rigorous examination is rare, and the trials and tribulations of the group are described in detail. Specific guidelines highlighting effective preparation options for qualifying exams are often elusive, and, as such, this article explores current research related to collaborative preparation and mentoring, as well as the qualifying examination process in total, in hopes of adding to the scientific body of knowledge related to these subjects. It also offers best practice strategies, suggests possible technology tips regarding wiki implementation, and seeks to better scaffold future scholars and/or mentors seeking to effectively participate in or plan for collaborative qualifying examination preparation.  相似文献   

Can changes in resistance exercise workload influence internal load,countermovement jump performance and the endocrine response?     

Daniel J Hiscock  Brian Dawson  Michael Clarke  Peter Peeling 《Journal of sports sciences》2018,36(2):191-197

This study examined the influence of differing volume load and intensity (%1 repetition maximum[%1RM]) resistance exercise workouts on session rating of perceived exertion (sRPE) countermovement jump (CMJ) performance and endocrine responses. Twelve participants performed a workout comprising four exercises (bench press, back squat, deadlift and prone bench pull) in randomised order as either power (POW); 3 sets × 6 repetitions at 45%1RM × 3 min inter-set rest, strength (ST); 3 sets × 3 repetitions at 90%1RM × 3 min inter-set rest, or hypertrophy (HYP); 3 sets × 10 repetitions at 70%1RM × 1 min inter-set rest in a randomised-crossover design. CMJ performance and endocrine responses were measured immediately pre-, post-, 12, 24, 48 and 72 h post-exercise. POW sRPE (3.0 ± 1.0) was lower than ST (4.5 ± 1.0) (P = 0.01), and both were lower than HYP (8.5 ± 1.0) (P = 0.01). Duration of CMJ decrement was longer (P ≤ 0.05) for HYP (72 h) compared to POW (12 h) and ST (24 h). Testosterone concentration was greater (P ≤ 0.05) immediately post-exercise in HYP compared to POW and ST. In conclusion, less inter-set rest, greater volume load and intensity (%1RM) may increase sRPE, duration of CMJ performance decrement and testosterone responses in resistance exercise.  相似文献   

Workload and non-contact injury incidence in elite football players competing in European leagues     

Barthelemy Delecroix  Alan McCall  Brian Dawson  Serge Berthoin 《European Journal of Sport Science》2018,18(9):1280-1287

Purpose: The aim of this study was to analyse the relationship between absolute and acute:chronic workload ratios and non-contact injury incidence in professional football players and to assess their predictive ability. Methods: Elite football players (n?=?130) from five teams competing in European domestic and confederation level competitions were followed during one full competitive season. Non-contact injuries were recorded and using session rate of perceived exertion (s-RPE) internal absolute workload and acute:chronic (A:C) workload ratios (4-weeks, 3-weeks, 2-weeks and week-to-week) were calculated using a rolling days method. Results: The relative risk (RR) of non-contact injury was increased (RR?=?1.59, CI95%: 1.18–2.15) when a cumulative 4-week absolute workload was greater than 10629 arbitrary units (AU) in comparison with a workload between 3745 and 10628?AU. When the 3-week absolute workload was more than 8319?AU versus between 2822 and 8318?AU injury risk was also increased (RR=?1.46, CI95% 1.08–1.98). Injury incidence was higher when the 4-week A:C ratio was <0.85 versus >0.85 (RR?=?1.31, CI95%: 1.02–1.70) and with a 3-week A:C ratio >1.30 versus <1.30 (RR?=?1.37, CI95%: 1.05–1.77). Importantly, none of the A:C workload combinations showed high sensitivity or specificity. Conclusions: In elite European footballers, using internal workload (sRPE) revealed that cumulative workloads over 3 and 4 weeks were associated with injury incidence. Additionally, A:C workloads, using combinations of 2, 3 and 4 weeks as the C workloads were also associated with increased injury risk. No A:C workload combination was appropriate to predict injury.  相似文献   

Dietary nitrate supplementation does not improve cycling time-trial performance in the heat     

Georgina L. Kent  Brian Dawson  Gregory R. Cox  Louise M. Burke  Annette Eastwood  Kevin D. Croft 《Journal of sports sciences》2018,36(11):1204-1211

This investigation examined the effect of beetroot juice (BR) supplementation, a source of dietary nitrate (NO₃^?), on cycling time-trial (TT) performance and thermoregulation in the heat. In a double-blind, repeated-measures design, 12 male cyclists (age 26.6 ± 4.4 years, VO_2peak 65.8 ± 5.5 mL.kg^?1.min^?1) completed four cycling TTs (14 kJ.kg^?1) in hot (35°C, 48% relative humidity) and euthermic (21°C, 52%) conditions, following 3 days supplementation with BR (6.5 mmol NO₃^? for 2 days and 13 mmol NO₃^? on the final day), or NO₃^–depleted placebo (PLA). Salivary NO₃^? and nitrite, core (T_c) and mean skin temperature (T_sk) were measured. Salivary NO₃^? and nitrite increased significantly post-BR supplementation (p < 0.001). Average TT completion time (mm:ss) in hot conditions was 56:50 ± 05:08 with BR, compared with 58:30 ± 04:48 with PLA (p = 0.178). In euthermic conditions, average completion time was 53:09 ± 04:35 with BR, compared with 54:01 ± 04:05 with PLA (p = 0.380). The TT performance decreased (p < 0.001), and T_c (p < 0.001) and T_sk (p < 0.001) were higher in hot compared with euthermic conditions. In summary, BR supplementation has no significant effect on cycling TT performance in the heat.  相似文献