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101.
The transition from teacher training into the teaching profession is seen to be key in the biography of a teacher. Yet there is a lack of enquiry into the development of the content knowledge (CK) and pedagogical content knowledge (PCK) held by teachers at the end of their education, and into the significance of this knowledge for situational and behavioural cognition. On the basis of data from the international comparative study TEDS-M 2008 and the Germany-based 2012 follow-up, this contribution investigates the knowledge and skills development of teachers during the transition from teacher training to the teaching profession in a four-year longitudinal study with n = 171 mathematics teachers. Three test formats (paper-and-pencil, video-vignettes and speed tests) are used to examine various indicators for teacher expertise. In addition to the analysis of changes in mathematical CK and PCK levels, path analysis is used to determine the extent to which this knowledge functions as a predictor for the perception and interpretation of classroom situations, the decision-making in these situations, and the quick identification of student mistakes. The results show only small changes in the group mean (for MCK there is a small loss, whereas MPCK remains constant), but high fluctuation (i. e. weak correlation) in the MPCK ranking between the two measurement occasions, pointing to differential learning effects gained from teaching practice. There are also significant differences in predictability: MCK is important for the speed indicators of teacher expertise; MCK and MPCK for the perception and interpretation of situations, and for the generation of action strategies. These findings can on the one hand help to facilitate the evaluation of beginning teachers’ need for support and, on the other hand, they indicate the necessity for the early integration of practice-based elements into teacher training programmes with the aim of developing PCK and related skills.  相似文献   
102.
Discrimination reversal learning has been used as a measure of species flexibility in dealing with changes in reinforcement contingency. In the simultaneous-discrimination, midsession-reversal task, one stimulus (S1) is correct for the first half of the session, and the other stimulus (S2) is correct for the second half. After training, pigeons show a curious pattern of choices: They begin to respond to S2 well before the reversal point (i.e., they make anticipatory errors), and they continue to respond to S1 well after the reversal (i.e., they make perseverative errors). That is, pigeons appear to be using the passage of time or the number of trials into the session as a cue to reverse, and are less sensitive to the feedback at the point of reversal. To determine whether the nature of the discrimination or a failure of memory for the stimulus chosen on the preceding trial contributed to the pigeons’ less-than-optimal performance, we manipulated the nature of the discrimination (spatial or visual) and the duration of the intertrial interval (5.0 or 1.5 s), in order to determine the conditions under which pigeons would show efficient reversal learning. The major finding was that only when the discrimination was spatial and the intertrial interval was short did the pigeons perform optimally.  相似文献   
103.
The recent convergence of digital cameras into mobile phones with Internet connectivity has provided the opportunity for individuals and organisations to adopt new image-making practices. The widespread use of photo-sharing and social networking platforms for sharing, accessing and storing digital photographs is presenting scholars in the social sciences with new areas of research that address the nature of digital photography. By examining the technological, social and cultural factors involved in contemporary image-making practices, scholars are presenting new concepts regarding the characteristics of digital photographs that impact archival activities aimed at managing and preserving trustworthy digital records. This article identifies and discusses the key concepts emerging from social science research on digital photography that are most relevant to the archival field. Analysis of the findings of these studies suggests that new technologies and social practices are changing how people use digital photographs and their expectations of permanence. Therefore, archivists need to be engaged in interdisciplinary discussions regarding the evolution of photographic practices and emerging characteristics of digital photographs in order to anticipate the management and preservation activities required to protect contemporary visual records for future use.  相似文献   
104.
This article reports on a study of the awareness, perceptions and use of e-books by academic staff in Further Education (FE) colleges throughout Northern Ireland (NI). It is the first comprehensive study of e-book use by FE faculty in NI and fills a significant gap in the research literature on e-books in education, which has tended to focus on Higher Education and the university setting. Data was collected through an online survey which was distributed to FE faculty across NI. The findings show that although FE academic staff are receptive to e-books and welcome them as a resource, poor reading experience and lack of awareness of relevant titles have had an impact. In particular, the research found that 40% of academic staff, in post less than five years, had not used e-books. Greater availability of titles, promotion, and better integration within teaching and learning emerge as key requisites for effective service delivery and enhancement of e-books within FE, as does the need for better targeted instruction and training aimed at academic staff. Understanding patrons' views, awareness, needs, habits and expectations in relation to e-books is crucial to help direct collection content while budgets remain tight and physical space limited.  相似文献   
105.
This study aimed to develop and establish the efficacy of a life skills-based sexuality education programme for junior high school students that focused on prevention. A non-equivalent control-group pretest-posttest design was employed with 105 students in the first-year of junior high school participating. The experimental group received 10 sessions of a life skills-based sexuality education programme, and the control group received 10 sessions of the standard sexuality education, both provided during a home economics class. A comparison of the two groups’ post-test scores showed that the experimental group scored significantly higher than the control group on sexual and reproductive health related knowledge (F = 58.50, p < .001) and life-skills (F = 11.52, p = .007). In addition, the experimental group showed a larger improvement in self-management skills for sexual health than did the control group (F = 9.32, p = .003). A life skills-based sexuality education programme increased life skills levels, knowledge about sexuality and sexual and reproductive health, and helped participants identify appropriate behaviours when facing a sexually risky situation. Results highlight the value of including an evidence-based and practice-oriented life skills-based sexuality education programme in the formal curriculum of junior high schools in Korea.  相似文献   
106.
Predominantly White institutions have not been as effective as historically Black institutions in retaining and conferring degrees upon African American college students. This review seeks to embed the psychological aspects of the retention process proposed by Bean and Eaton [A psychological model of college student retention. In J. M. Braxton (Ed.), Reworking the student departure puzzle (pp. 48–61). Nashville, TN: Vanderbilt University Press, 2000] in a culturally-sensitive framework and consider how African American students attending PWIs may experience the processes in retention. We first give a brief overview of Bean and Eaton’s [A psychological model of college student retention. In J. M. Braxton (Ed.), Reworking the student departure puzzle (pp. 48–61). Nashville, TN: Vanderbilt University Press, 2000] model of retention, then we propose and discuss revisions to Bean and Eaton’s model that we believe would make the model more applicable to African American students attending predominantly White institutions. Specifically, we address students’ attitudes towards their institution, academic self-efficacy, motivation, achievement goals, attributions, and ethnic and bicultural identity development. The discussion concludes with implications and directions for future study.  相似文献   
107.
108.
The literature on the impact of entertainment media on sex education is typically pathology-focused, unclear regarding the effects of such usage, and void of dialogue between those who actually work in the areas of sexuality education and entertainment. To address this gap, this paper is the product of joint authorship between media figures from varied sexually-focused programming fields and academics who teach and conduct research in the areas of sexuality and relational health. The authors focus on the role that various forms of entertainment media play in educating members of the public and college classrooms in the areas of sex and sexuality. Additionally, examples of the inclusion of entertainment media in educational contexts are discussed.  相似文献   
109.
For commercial purveyors of digital speech, information and entertainment, the biggest threat posed by the Internet isn't the threat of piracy, but the threat posed by free speech -- speech that doesn't cost any money. Free speech has the potential to squeeze out expensive speech. A glut of high quality free stuff has the potential to run companies in the business of selling speech out of business. We haven't had to worry about this before, because speaking in a meaningful way to a large audience was expensive, and people couldn't afford to do serious mass speaking for free for very long. The Internet has made it much cheaper. It doesn't take much to give out information to the whole world, every day, for free, for years. And people do. If we are trying to increase the abundant dissemination of information, free speech is good. If we are trying to increase commerce in information, free speech is arguably bad, in that it competes with pay speech. Information merchants would obviously prefer that the only speech in the marketplace be pay speech. In the past two years, commercial content owners have scored significant progress in herding free speakers off the Net. There's an important synergy between persuading the government to give your industry some friendly new laws or regulations, and using new and old legal tools to make life more difficult or expensive for inconvenient competitors who aren't necessarily doing anything illegal. Recently, businesses have been able to combine the two strategies to make the Internet a much safer place to sell speech, by making the Internet a less friendly, more dangerous place to give away speech for free.  相似文献   
110.
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