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51.
52.
Der vorliegende Beitrag besch?ftigt sich unter Bezugnahme auf einen systemtheoretischen Kommunikationsbegriff mit der (p?dagogischen)
Strukturierung des Lernens Erwachsener. Er geht von der These aus, dass die P?dagogisierung des lernbezogenen Umgangs mit
Wissen im Erwachsenenalter unsichtbar (gemacht) wird. Auf der Grundlage eines abgeschlossenen DFG-Projekts werden unterschiedliche
Formen p?dagogischer Kommunikation dargestellt und das in ihren Settings, ihrer kommunikativen Verfasstheit und den Mustern
ihrer Strukturierung eingelagerte Invisibilisierungspotenzial herausgearbeitet. Vor diesem Hintergrund wird das Konzept des
Lebenslangen Lernens als eine entwickelte Form des Umgangs mit dem Paradox der (Un-)Sichtbarkeit p?dagogischer Kommunikation
interpretiert. Was diese Institutionalisierungsform des Lernens kennzeichnet, ist somit eine doppelt gegenl?ufige Gleichzeitigkeit
von Visibilisierung und Invisibilisierung. 相似文献
53.
54.
Frank Niklas Wolfgang Schneider 《European Journal of Psychology of Education - EJPE》2014,29(3):327-345
Mathematical competencies are important not only for academic achievement at school but also for professional success later in life. Although we know a lot about the impact of “Home Literacy Environment” on the development of early linguistic competencies, research on “Home Numeracy Environment” (HNE) and the assessment of its influence on the development of mathematical abilities is in its infancy. We still lack studies analysing this relationship and simultaneously controlling for other variables concerning the individual and the environment. Thus, in this article, we focussed on the development of mathematical competencies in a sample of 609 German children from the end of kindergarten until the end of Grade 1. In particular, we were interested in the role HNE plays in regard to this development while controlling for age, sex, intelligence, rapid naming, number span, linguistic competencies, kindergarten attendance and socioeconomic status. Moreover, HNE was compared between families with or without a history of mathematical disability. HNE was not only an important predictor of mathematical abilities at the end of kindergarten, but it also influenced the further development of mathematical competencies above and beyond its initial impact. Families with a history of dyscalculia provided a more unfavourable HNE than families with no such problems. Results are shown in a structural equation model, which highlights the importance of HNE. The findings indicate that those involved in policy and intervention should focus more on the learning environments in families to improve children's achievement. 相似文献
55.
We report on the development, validation, and implementation of a collection of test items designed to detect misconceptions related to first-year computer science courses. To this end, we reworked the development scheme proposed by Almstrum et al. (SIGCSE Bulletin 38(4):132–145, 2006) to include students’ artifacts and to simultaneously incorporate think-aloud interviews and flash tests. We also investigated to what extent the practical efficiency of detecting certain misconceptions could be increased without significantly affecting the sensitivity of the instrument, and present positive and negative results regarding this goal. The results of a first transfer and implementation study suggest that it is indeed possible to use the test items in a large-scale practical setting – both as diagnostic instruments and as interventions. 相似文献
56.
Reading and writing are necessary prerequisites for a successful school career. Therefore it is important to identify precursor variables which predict these abilities early in order to identify children possibly at risk of developing reading or spelling difficulties. Relevant precursors include letter knowledge, phonological awareness (PA), vocabulary, and cognitive abilities. Moreover, also social aspects such as the socioeconomic status of the family (SES), the migration background and the “Home Literacy Environment” (HLE) are of importance. So far, only a few studies are available which analyse the early development of different possible explanatory factors simultaneously in the years before and after school enrolment. In particular, the relative impact of HLE on early and later linguistic competencies in a German context remains unclear. Thus, in our longitudinal study, covering the period from kindergarten to Grade 1, we focused on the role HLE plays in the development of language competencies of 921 German children, compared to the impact of several other important variables. 相似文献
57.
Zusammenfassung. Die Bereitstellung eines pr?zisen, effizienten und m?glichst vollst?ndigen Zugriffs auf aktuelle Informationen im Internet
ist eine grundlegende Voraussetzung für die Weiterentwicklung des elektronischen Handels. Dieser Beitrag zeigt, wie themenspezifische
Suchwerkzeuge mit Hilfe mobiler Programme eine solche Bereitstellung leisten k?nnen. Der vorgestellte Ansatz wird durch messdaten-basierte
Simulationen sowie anhand einer Fallstudie evaluiert.
Eingegangen am 15. Dezember 1999 / Angenommen am 10. April 2000 相似文献
58.
59.
Martina Gille Johann de Rijke Dr. Wolfgang Gaiser 《Zeitschrift für Erziehungswissenschaft》2011,14(4):551-579
Being active in civic organizations can be expressed in multifarious forms of participation and commitment. With regard to individuals, the learning context it provides fosters personal development, sympathy for other perspectives, and social competencies in general and is, thus, particularly meaningful for young people in their second and third decades. With regard to organizations, civic participation strengthens the integration and dynamic adaptation of institutions to changing environments and, on a macro-level, raises social cohesion. The contexts of participation are various: not only in educational institutions and the world of work, but also in clubs, organizations and less formal groups, which are involved in social and political issues. Socio-structural and motivational factors, but also belonging to social networks determine the involvement in such forms of civic participation. Additionally, there is evidence of a mutual reinforcement of participation in different contexts. This is shown by the results of the DJI-Survey AID:A 2009. 相似文献
60.
Low energy consumption is one of the main challenges for wireless video transmission on battery limited devices. The energy invested at the lower layers of the protocol stack involved in data communication, such as link and physical layer, represent an important part of the total energy consumption. This communication energy highly depends on the channel conditions and on the transmission data rate. Traditionally, video coding is unaware of varying channel conditions. In this paper, we propose a cross-layer approach in which the rate control mechanism of the video codec becomes channel-aware and steers the instantaneous output rate according to the channel conditions to reduce the communication energy. Our results show that energy savings of up to 30% can be obtained with a reduction of barely 0.1 dB on the average video quality. The impact of feedback delays is shown to be small. In addition, this adaptive mechanism has low complexity, which makes it suitable for real-time applications. 相似文献