排序方式： 共有103条查询结果，搜索用时 359 毫秒
51.
J. J. Po-An Hsieh Mark Keil Jonny Holmström Lynette Kvasny 《The Information Society》2013,29(4):264-283
Universal high-speed Internet access can productively transform a nation's economy. However, many municipalities in the United States have been left behind in terms of Internet penetration. Some municipal governments have tried to address this by launching initiatives that aim at offering citywide, universal broadband access. Unfortunately, most of these initiatives either have been discontinued or have ended in failure. Drawing on actor-network theory, we conducted a 3-year study to investigate the evolution of the Internet TV initiative in LaGrange, Georgia, in the United States. The results reveal distinct interpretations of the initiative by different actor groups (the government, the service providers, socioeconomically advantaged residents, and socioeconomically disadvantaged residents), at different stages of implementation, pointing to tensions among the various groups. These tensions reflect the structural problems embedded in the macro political, economic, and societal context. The findings offer insights for policymakers who intend to achieve universal broadband access. 相似文献
52.
This study contributes to social studies of imaging and visualization practices within scientific and medical settings. The focus is on practices in radiology, which are bound up with visual records known as radiographs. The study addresses work following the introduction of a new imaging technology, tomosynthesis. Since it was a novel technology, there was limited knowledge of how to correctly analyse tomosynthesis images. To address this problem, a collective review session was arranged. The purpose of the present study was to uncover the practical work that took place during that session and to show how, and on what basis, new methods, interpretations and understandings were being generated. The analysis displays how the diagnostic work on patients' bodies was grounded in two sets of technologically produced renderings. This shows how expertise is not simply a matter of providing correct explanations, but also involves discovery work in which visual renderings are made transparent. Furthermore, the results point to how the disciplinary knowledge is intertwined with timely actions, which in turn, partly rely on established practices of manipulating and comparing images. The embodied and situated reasoning that enabled radiologists to discern objects in the images thus display expertise as inherently practical and domain-specific. 相似文献
53.
Susan D. Holloway Sira Park Michele Jonas Janine Bempechat Jin Li 《Journal of Latinos & Education》2014,13(4):262-277
Relatively little research has examined the ways in which immigrant Latino parents can effectively support their adolescent children’s schooling. To address this gap, we conducted in-depth interviews with 32 Mexican-heritage 9th graders. Students identified parents’ advice giving as the most salient form of involvement. Parental advice emphasized the importance of persisting in school, avoiding hardship as experienced by parents, and exhibiting social competence in relationships with peers and teachers. Parental advice giving was transmitted most effectively in the context of parent–child closeness. The findings form a basis for fostering effective and sustainable parent–school partnerships. 相似文献
54.
This paper presents an analysis of the scientific reasoning of a dyad of secondary school students about the phenomenon of dissolution of gases in water as they work on this in a simulated laboratory experiment. A web-based virtual laboratory was developed to provide learners with the opportunity to examine the influence of physical factors on gas solubility in water. An evaluation process involving 180 students revealed that the concepts connected to the dissolution of gas in water caused problems for the students even after having experimented with the virtual laboratory. To investigate the nature of learners’ reasoning about the visualised events, 13 video-recorded groups of learners were analysed. This study follows the reasoning of one group that displayed a possibly productive way of solving the problem. The results address the students’ general difficulty of discovering something that they are conceptually unprepared for within the virtual laboratory. The analysis shows how the students eventually found a way out of their dilemma by making an analogy with other dissolving processes. In effect, the analysis elucidates some of the analytical work that had to be done by the participants when collaboratively negotiating a shared meaning of a scientific concept in concord with a given task and set of instructional materials. Implications for design might be to provide the learning material with explicit hints that enable students to connect to specific phenomena related to the one investigated concept. The findings show the usefulness of video analytic research, informed by CA and ethnomethodology. This analytical framework can support design processes and provide useful information, which might identify hurdles to learning a scientific concept by simulated events and pathways to overcome these hurdles. 相似文献
55.
Jonas Holst 《Educational Philosophy and Theory》2013,45(9):963-972
Abstract This article means to investigate the philosophical concept of human embodiment in relation to physical education. As human beings not only do we have a body that we can control, but we ‘are’ our body and live embodied in the world, as the German thinker, Helmuth Plessner, puts it in one of his many contributions to the philosophical anthropology of the twentieth century. Elaborating on this concept of human embodiment, the article explores a form of physical re-education that takes as its starting point this aspect of being in the body which has been and is still being underestimated even in the physical educational system. Re-educating the body in this aspect includes becoming more aware of the states, postures and expressions of the body so as to be able to remain connected to the body and to get to know oneself better as being in the body. 相似文献
56.
Jonas Hallström 《History of education》2013,42(2):239-259
The aim of this article is to investigate and analyse the cultural boundaries of school biology, and to a certain extent the natural science subjects in general, in two Swedish curriculum reforms, from the viewpoint of the Swedish Association of Biology Teachers (ABT). Thomas Gieryn’s concept of boundary‐work is thus used in analysing how the ABT acted to ‘hold the subject’s territory’. The ABT had substantial influence on the content of the new biology curricula, although this was sometimes achieved after internal conflict and required support from other actors, especially university biologists. Upper secondary biology had the highest status and was seen as a science, related to modern biological research and curriculum development, particularly in the USA. Despite the efforts of the ABT boundary‐work was unsuccessful in respect of the timetable; the natural science subjects were reduced both at the lower and upper secondary level, in contrast to what happened in many other Western countries. 相似文献
57.
The aim of the study is to describe and analyse research articles relating to the subject of education for sustainable development (ESD) for early childhood education (ECE), published during the years 1996–2013. This is done by answering three specific questions: (1) How is ESD defined by researchers in ECE? (2) What are the major research inquiries and results? (3) What does the research say about young children acting for change in relation to sustainability? Our analysis identified two different definitions of ESD: first, as a threefold approach to education based on questions concerning education about, in and for the environment; and, second, as an approach to education that includes three interrelated dimensions: economic, social and environmental. Two major research areas are identified in this study. The first area relates to how teachers understand ESD, while the second area focuses on how ESD can be implemented in educational practice. During the period studied, the research has evolved from teaching children facts about the environment and sustainability issues to educating children to act for change. This new approach reveals a more competent child who can think for him- or herself and make well-considered decisions. The decisions are made by investigating and participating in critical discussions about alternative ways of acting for change. 相似文献
58.
ResumenEn este articulo el autor analiza el desarrollo conceptual y simbólico y sus relaciones evolutivas a los dieciocho meses De acuerdo con los datos que aporta el autor sobre el desarrollo conceptual temprano, existe un desfase entre el desarrollo simbólico y el conceptual siendo la formación del simbolo un fenómeno evolutivo de aparición posterior. Los datos apoyan la hipotesis de que la formación de conceptos y de símbolos constituyen sistemas estructurales independientes aunque ambos desarrollos tienen implicaciones mutuas. Por una parte, la cognición proporciona lina organización conceptual relativamente sofisticada que será utilizada, aunque sólo en parte, por la temprana simbolización. Por otro lado, la simbolización amplía el espacio sobre el que se aplica la conceptualización extendiéndolo basta el no-aquí y no-ahora. 相似文献
59.
Margareta Sandström Kjellin Jonas Stier Tanja Einarson Trevor Davies Tuula Asunta 《欧洲师范教育杂志》2010,33(2):201-218
The aim of the article is to present and discuss a study in which Finnish, English and Swedish pupils’ understanding of citizenship education with regard to: (a) political literacy; and (b) attitudes and values was explored. The study was a cross‐national, multiple case study and data were collected through 18 focus group dialogues with 15‐year‐old pupils. Results showed that English pupils were much more well‐informed about rights and responsibilities than their Nordic counterparts and also more skilled rhetorically, but appeared less accustomed to open and confident relationships with adults than the Swedish pupils. Finnish pupils did not seem to be encouraged to talk; instead they kept their thoughts and feelings to themselves. One conclusion, among others, was that the study illuminates conditions for the development of a so‐called key competence – i.e., ‘interpersonal, intercultural, social and civic competence’. 相似文献
60.
Jonas Svensson 《British Journal of Religious Education》2010,32(3):245-258
The present article focuses on the choices teachers make when teaching Islamic religious education (IRE) in the town of Kisumu, Kenya. The data were collected through interviews with IRE teachers and participant observations in schools that offered IRE during several fieldwork sessions in the period 2003–2006. The fieldwork revealed that the choices teachers made were related to social and religious contexts both inside and outside the school setting and also the more immediate contexts of the teaching–learning situation. Most clearly, the choices were influenced by the fact that IRE is an examinable subject in a larger educational system. This article claims that an alternation between a confessional education into Islam and a more fact‐oriented education about Islam was a strategy used by some teachers balancing between competing demands posed by the educational system, students, parents and the surrounding local society. 相似文献