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Luis Marques Joa˜o Praia Richard Kempa 《Research in Science & Technological Education》2013,31(2):265-278
This paper reports the findings of a preliminary evaluation of an in-service training programme designed for practising geology/earth science teachers in Portuguese high schools and intended to enhance the effectiveness of fieldwork activities organised by them for their students. Among the points particularly stressed during the in-service training were that students should be adequately prepared for fieldwork through classroom-based activities prior to the fieldwork itself and that to arrive at the maximum educational benefit for the students, they should be involved in collaborative group-based investigation. The findings, derived from an enquiry among students following their exposure to fieldwork, revealed that in both these aspects teachers failed to put theory into practice, probably as the result of a lack of confidence to implement novel procedures. On the positive side, the students reported that they enjoyed the social interaction with other students that the fieldwork made possible and the opportunity to work independently of the teachers. 相似文献
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Rashné R. Jehangir 《About Campus》2012,17(2):2-8
Rashné R. Jehangir challenges her students and herself to engage with tough issues like class, race, gender, disability, and homophobia. How does she help them learn from, and even embrace, the confict that inevitably arises? Read on to find out. 相似文献
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The compact disk (CD) player was one of the major audio innovations of the 1980s in the Netherlands. For studies of the temporal and social diffusion pattern of the CD player and the compact disks, both cultural and economic theories about innovations and music consumption are available. In this paper, these theories are combined in six working hypotheses concerning earlier adoption. The empirical analysis includes both time-invariant and time-varying variables and consumer characteristics. Event history analysis, the technique used in this article, enables one to incorporate these kinds of variables simultaneously in a dynamic model. Compared with the diffusion models usually employed by means of longitudinal analysis, event history analysis is a significant improvement in studying the development of the CD market in the Netherlands. 相似文献
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Public administrations have been very much concerned since the 1980s about the need of avoiding vendor lock-in when procuring themselves with information technology (IT) infrastructure. The boost of e-government that has taken place in recent years has put this concern again in the agenda of public administrations. Interoperability has shown up as a principle in the conception and deployment of the e-government initiatives, and the interoperability frameworks have been the tool for implementing the principle. In this paper, the use of the interoperability frameworks and of the enterprise architectures within the e-government initiatives is surveyed. The scope of the survey is Europe and the United States. As far as the author is aware, all trends in interoperability policy fall within the scope of the survey. The survey is focused on the methodological tools that e-government agencies have devised for achieving the interoperability at the public administrations. The tools are interoperability frameworks and enterprise architectures. 相似文献
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Cinema Demand in Spain: A Cointegration Analysis 总被引:4,自引:3,他引:1
In this paper we explain the decline in cinema attendance in Spain since 1968. We use a cointegration analysis to estimate
an individual demand function for cinema, with annual data and in terms of average attendance per inhabitant. We find that
cinema is a luxury good and that its demand is elastic with respect to its price. We also show that television acts as a deterrent
with regard to cinema attendance.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献