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121.
Anna-Katharina Praetorius Svenja Vieluf Steffani Saß Andrea Bernholt Eckhard Klieme 《Zeitschrift für Erziehungswissenschaft》2016,19(1):191-209
Teaching quality often is assumed to be a personal and stable characteristic of teachers. Whether this is true has scarcely been investigated empirically. In this study the extent to which value-added scores of teachers teaching German and English as a foreign language (EFL) to the same class remain consistent across subjects was investigated. Then, the consistency of two teaching quality dimensions—classroom management and motivational support—across subjects was explored. A sample consisting of 25 classes with 548 students to whom German and EFL were taught by the same teacher was analyzed using multivariate multilevel models and generalizability theory. The results showed that the value-added scores were highly correlated across subjects. While there was hardly any subject-dependent variance in classroom management, there was substantial subject-dependent variance in motivational support. The results indicate that it is important to conduct further studies on the situational and contextual factors that might influence teaching quality to gain a more comprehensive picture regarding the consistency of teaching quality across various conditions. 相似文献
122.
Klaus Pasedach und Andrea Reichel 《Informatik - Forschung und Entwicklung》1999,14(4):227-229
123.
Lori Lyman DiGisi Andrea Nix Karen Daniels Leslie Kramer Susan Cyr 《Research in Science Education》1999,29(2):247-268
There are no panaceas and no shortcuts. Man is an amphibious being who lives simultaneously or successively in several universes:
in the world of matter, the world of mind, the world of spirit; in the individual world and in the social world; in the homemade
universe of his own artifacts, institutions, and imaginings, and in the given, the God-made universe of nature and grace.
In the very nature of things none of the major problems confronting such a being can possibly be a simple problem. Those who
seek simple solutions for complex problems may have the best of intentions; but unfortunately there is an original sin of
the intellect in our habit of arbitrary oversimplification. Those who act without taking precautions against this vice of
their intellectual nature doom themselves and their fellows to perpetual disappointment. (Aldous Huxley, 1953, p. 1.) 相似文献
124.
In this study, we embark on an exploration and analysis of a community of learners of science in a classroom of one of the
authors (Barbara Luster)—a group of Year 8 African American girls and boys in an urban, inner-city school. This study is a
collaborative action research project that examines closely the practice of teaching and learning science within a socio-cultural
perspective that Barbara has espoused and brought to her classroom. We study the two dimensions of a community of learners—social-organisational,
and intellectual-thematic—and how each evolved and influenced the other. As we explore these dimensions we pay particular
attention to the gender of the students, looking for similarities and differences between boys and girls in the patterns that
emerge. Our findings indicate that in Barbara's class the relative success of the learning community in terms of the social-organisational
dimension was not accompanied by a relative success in the intellectual-thematic dimension. Barbara and her students, for
the most part, succeeded in developing a community of people coming together to ask questions, offer their thinking, and respectfully
sometimes build on each other's contributions and sometimes disagree with each other. However, Barbara and her students did
not quite succeed in developing shared understandings, and we discuss the reasons for this. 相似文献
125.
126.
Reduction of water evaporation in polymerase chain reaction microfluidic devices based on oscillating-flow 总被引:1,自引:0,他引:1
Alessandro Polini Elisa Mele Anna Giovanna Sciancalepore Salvatore Girardo Adriana Biasco Andrea Camposeo Roberto Cingolani David A. Weitz Dario Pisignano 《Biomicrofluidics》2010,4(3)
Producing polymeric or hybrid microfluidic devices operating at high temperatures with reduced or no water evaporation is a challenge for many on-chip applications including polymerase chain reaction (PCR). We study sample evaporation in polymeric and hybrid devices, realized by glass microchannels for avoiding water diffusion toward the elastomer used for chip fabrication. The method dramatically reduces water evaporation in PCR devices that are found to exhibit optimal stability and effective operation under oscillating-flow. This approach maintains the flexibility, ease of fabrication, and low cost of disposable chips, and can be extended to other high-temperature microfluidic biochemical reactors. 相似文献
127.
Andrea D. Ellinger 《Performance Improvement Quarterly》1999,12(4):45-70
Proponents of the learning organization acknowledge that leaders and managers must assume roles as coaches in organizations that aspire to become learning organizations. The concept of the manager as a coach is becoming increasingly popular as a way to facilitate learning and improve employee performance. Yet, despite the research that has been done on coaching, studies generally focus on characteristics of good coaches, requisite coaching skills, and employees' perceptions of the improvement in managers coaching skills following such training programs. This article describes some of the findings from a larger qualitative critical incident study. Specifically, the triggers for coaching and the outcomes of coaching interventions for the individual employee, manager, and organization are examined and reported here. This study identifies gaps and discrepancies, political, and developmental issues as the primary triggers for coaching. Additionally, this study suggests that managers' commitment to coaching has the potential to impact performance at the individual employee, manager, and organizational level. 相似文献
128.
Karen Markey Professor Fritz Swanson Lecturer Andrea Jenkins Programmer Brian Jennings Programmer Beth St. Jean Graduate Student Research Assistant Victor Rosenberg Associate Professor Xingxing Yao Graduate Student Research Assistant Robert Frost Associate Professor 《The Journal of Academic Librarianship》2009,35(4):303-313
This exploratory study examines whether undergraduate students will play games to learn how to conduct library research. Results indicate that students will play games that are an integral component of the course curriculum and enable them to accomplish overall course goals at the same time they learn about library research. 相似文献
129.
This paper introduces a set of services for the creation of on-line surveys, questionnaires, exams and self-assessment tests within a virtual community system used in e-learning settings. The system, called "Online Communities", is a dynamic web application used as platform for blended learning activities by the Faculty of Economics of the University of Trento. The functionalities added to the platform are contextualized into virtual communities, where activities take place. This allows us to create, submit and analyze questionnaires within and/or outside the boundaries of a community. Furthermore, the system allows to manage libraries of queries organized by the teacher/administrator of the community according to topics and levels of difficulty, in order to produce tests and generate self-assessment sessions on behalf of students. The addition of a questionnaire/ poll/self-assessment tool to a virtual community system can add a lot of interesting features, mainly using the inheritance mechanism implemented among different hierarchically-connected communities. This paper will present these functionalities and highlight one of these services, precisely the one dedicated to self-assessment. In the system, self-assessment tests have indeed a double nature: (1) They are useful to students for checking their own level of preparation; and (2) They are useful to lecturers as an indicator of the level of preparation reached by the students. In order to encourage the use of the system within the whole educational process, and not to limit the real use of the service to the period of the final exams only, the possibility has been foreseen for each participant to share his/her own test results, comparing them with the other members of the community, and even offering real "challenges", thus transforming passive and "solitary" learning into something much more stimulating and "social". 相似文献
130.
Fear is not the first feature of educational experience associated with the best‐known progressive educational theorists—Jean‐Jacques Rousseau, John Dewey, and Paolo Freire. But each of these important thinkers did, in fact, have something substantive to say about how fear functions in the processes of learning and growth. Andrea English and Barbara Stengel juxtapose the ideas of these thinkers in this essay for three purposes: (1) to demonstrate that there is a progressive tradition that accounts for negative emotion in learning; (2) to explore doubt, discomfort, and difficulty as pedagogically useful, with links to fear as both a prompt for and an impediment to growth; and (3) to suggest that teachers take negative affect into account in their pedagogical practice. In doing so, English and Stengel join with contemporary theorists in and out of education to recognize that affect cannot be left out of social theory and that understanding the play of emotion is an integral part of creating truly educational contexts and experiences. The authors' focus here is on fear in processes of learning. 相似文献