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71.
Technological advancements in the workplace frequently have produced contradictory effects by facilitating accessibility and efficiency while increasing interruptions and unpredictability. We combine insights from organizational paradoxes and the job demands–resources model to construct a framework identifying positive and negative mechanisms in the relationship between communication technology use (CTU) and employee well-being, operationalized as work engagement and burnout. In this study of Dutch workers, we demonstrate that CTU increases well-being through positive pathways (accessibility and efficiency) and decreases well-being through negative pathways (interruptions and unpredictability). We highlight the importance of (1) investigating CTU resources and demands simultaneously to grasp the relationship between CTU and employee well-being, and (2) considering CTU's downsides to successfully implement new communication technologies and flexible work designs.  相似文献   
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This study investigates the preservice teacher learning in the context of conversations about their field-based challenges. First, a review of the literature explores studies that highlight the role of evidence-based conversation as a mechanism to approach the inevitable problems faced by teachers in the classroom. The subsequent case study provides an analysis of how a group of preservice teachers approached a colleague's challenge through a structured conversation and used digital videotapes and artifacts to add specificity to their analysis. The study's implications suggest how constructive and critical conversations between prospective teachers can play an important role in their professional development.  相似文献   
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For the past fifteen years, new techniques and methods, most particularly audio-visual ones, have made it possible to foresee a profound renewal in the training and retraining of teachers. To name some, the use of tape recorders, and then closed-circuit television, the production of anthologies on films, radio and television programmes, which make up an integral part of a system of training at a distance. In industrialised countries, these methods are very unequally used; in some of them, they do not even have as yet a system of retraining at a distance. Also conditions vary greatly according to the training institutes. Some only use the most traditional methods more or less perfected; others, well equipped with projectors of all sorts, laboratories and closed-circuit television, try to introduce really new methods and mediafor teaching. And lastly, some new procedures have hardly gone outside the research centres.  相似文献   
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Working with robots is an attractive possibility for educators at many levels. The price and availability of robotic hardware are favorable, there are often examples in the media of school groups doing robotic projects, and the projects support group design and co-operative activity. Still, these projects cannot be organized without considerable effort. In this article, we look at some of the opportunities and pitfalls that are encountered when working with robots in an educational setting, illustrating them with anecdotes from our experience with eight small robot-building projects, with participants ranging in age from nine to adult, and duration ranging from a single day to a full semester. We suggest some of the benefits of these projects and outline the problems organizers and participants will be likely to face.  相似文献   
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