政策和实践的困境(上)

教育政策和实践总是处在困境之中,这是困扰政策制定者和实践者的问题.本文着力从教育政策和实践所面临的困境、如何处理困境的角度,重新审视政策和实践两者的关系,并从政策目标、政策工具和实践中的能力三方面对其展开论述,以期在冲突的基础上促进教育政策和实践间的融合.     

A query-based approach in Web search instruction: An assessment of current practice

An instruction program that covers search tools on the Web should incorporate a user's information need as the basis for teaching these tools. This article lays the theoretical groundwork for such a query-based approach, deriving its argument from the literature published in the early days of databases in libraries. A review of recent literature as well as tutorials on the Web reveals that librarians do not routinely consider a user's query in their training in the use of Web-based search tools. Other training elements are more prevalent, in particular the nature of search tools, search strategies and the evaluation of results found in a search. When training recommends a context for searching the Web, the advice tends to be of a general nature. These results suggest that librarians may not routinely be teaching queries as a strategy for selecting and using search tools on the Web. Suggestions for further research are presented to explore these findings.     

The effects of frequency of encouragement on performance during maximal exercise testing

The aim of this study was to determine the effects of frequency of verbal encouragement during maximal exercise testing. Twenty-eight participants (12 males, 16 females) aged 20.9 +/- 1.5 years (mean +/- s) performed a maximal exercise test (VO2max) on a treadmill without any verbal encouragement. The participants were matched according to their pre-test VO2max and placed into either a control group or one of three experimental groups. They performed a second exercise test (post-test) 1 week later. During the second test, the control group received no verbal encouragement; the 20 s (20E), 60 s (60E) and 180 s (180E) encouragement groups received verbal encouragement every 20, 60 and 180 s, respectively, beginning with stage 3 of the exercise test. Relative VO2max, exercise time, blood lactate concentration, respiratory exchange ratio (RER) and ratings of perceived exertion (RPE) were not significantly different from the first test to the second test for the control group without verbal encouragement and the 180E group that received infrequent encouragement. Post-test values were significantly higher than pre-test values for the 20E and 60E groups. The post-test values of the 20E group were significantly higher than their pre-test values for relative VO2max (P < 0.001), exercise time (P < 0.0001), blood lactate concentration (P < 0.05), RER (P < 0.01) and RPE (P < 0.0001); this was also the case for the 60E group for relative VO2max (P < 0.01), blood lactate concentration (P < 0.05), RER (P < 0.05) and RPE (P < 0.05). The results suggest that frequent verbal encouragement (every 20 s and 60 s in the present study) leads to significantly greater maximum effort in a treadmill test than when no encouragement is given or when the encouragement is infrequent (i.e. every 180 s).     

Student performance in high-stakes examinations based on content area in senior secondary (VCE) physical education

Background: Senior secondary physical education courses for certification continue to evolve with curricula reform occurring to ensure content is contemporary, student learning outcomes are maximised and assessment practices are valid for determining certification of students. The content of examinable senior secondary physical education courses privilege theoretical concepts over student physical performance of motor skills and this is reflected in the use of written assessment of cognitive outcomes in many courses internationally.

Purpose: Student examination data were analysed from the year 12 (exit year) written examination of Victorian Certificate of Education (VCE) Physical Education to determine if student performance varied by Area of Study (content). Additionally, it investigated whether there was a relationship between student performance in each of the four Areas of Study examined and overall examination performance and considered the alignment of curriculum, assessment and pedagogy and the implications the findings may have on the teaching of VCE Physical Education in the future.

Methods: A secondary data analysis of student results from the 2011 (n?=?9323; M?=?5212, F?=?4111) and 2012 (n?=?8781; M?=?5011, F?=?3770) VCE Physical Education (Victoria, Australia) examinations were conducted. Examination questions were categorised by content, and means and standard deviations (SD) for discrete and continuous data were calculated, and categorical variables were presented as percentages. Regression analysis was also performed to establish the relationship between student cohort size and examination scores. An independent sample t-test was used to explore the examination scores and each Area of Study scores across 2011 and 2012. A one-way ANOVA were performed to investigate the differences of each Area of Study scores between examination grades from UG to A+.

Results: The results showed a positive correlation between VCE Physical Education student cohort size in a school and examination score in 2011 and 2012. Student performance differed across both years (2011 and 2012) and across Areas of Study within each of the years analysed. Students performed significantly lower on questions relating to the ‘planning, implementing and evaluating a training program’ Area of Study in 8 of the 11 possible grades (2011) and 10 of the possible 11 grades (2012) than in each of the other Areas of Study.

Discussion and conclusions: This study reveals that student performance on the external VCE Physical Education examination is not consistent across all content areas (Areas of Study). This may suggest that student difficulties in answering questions based on content in ‘planning, implementing and evaluating a training program’ result from topic or content difficulty rather than process or question difficulty. From these findings, implications for teaching examinable physical education effectively include the use of experiential learning and practical experiences to provide students with experiences from which they can draw knowledge when completing written assessment tasks. Additionally, the importance of having the required content knowledge to teach examinable physical education confidently for pre-service and in-service teachers is discussed.     

Entrepreneurial Academics: Developing Scientific Careers in Changing University Settings

This paper examines the impact of entrepreneurial initiatives within universities on scientific careers. Based on the career accounts of university‐based bioscientists involved in a government‐sponsored entrepreneurship training initiative, the paper explores the concept of academic entrepreneurialism. Three groups were identified in the data. First, academic entrepreneurs, who tended to be more experienced scientists and were now able to capitalise on their science. Second, those interested in technology transfer, who saw their career path taking them away from science, and finally a group of younger scientists who were trying to develop their career capital but were unsure what direction their career would take. The implications of these different groups for the management of universities and the development of knowledge are considered.