Can collaborative concept mapping create mathematically productive discourses?     

Andreas Ryve 《Educational Studies in Mathematics》2004,56(2-3):157-177

Four groups (three engineering students in each group)were videotaped while constructing concept maps in Linear Algebra. There are two aims of this study. The first is to characterize the discourse in the groups by addressing the following research questions: Do the students communicate in an effective way?Do the students' communications contain the elements typical for amathematically productive discourse? The analysis indicates that the communication among the students is effective and contains the elements that are characteristic for a mathematically productive interaction. The two types of methods used to analyze the data were focal and preoccupational analysis. The mathematical content and the coherence of the conversations were examined through focal analysis. The participants' engagement in the discourse was examined by preoccupational analysis, carried out by means of interactive flow chart. The second aim of this study is to evaluate the newly developed methodological framework used to characterize the discourses. The study shows that several aspects of the methodological framework need to be developed.  相似文献   

Dynamic multimedia stream adaptation and rate control for heterogeneous networks     

Szwabe Andrzej  Schorr Andreas  Hauck Franz J.  Kassler Andreas J. 《浙江大学学报(A卷英文版)》2006,7(1):63-69

Dynamic adaptation of multimedia content is seen as an important feature of next generation networks and pervasive systems enabling terminals and applications to adapt to changes in e.g. context, access network, and available Quality-of-Service (QoS) due to mobility of users, devices or sessions. We present the architecture of a multimedia stream adaptation service which enables communication between terminals having heterogeneous hardware and software capabilities and served by heterogeneous networks. The service runs on special content adaptation nodes which can be placed at any location within the network. The flexible structure of our architecture allows using a variety of different adaptation engines. A generic transcoding engine is used to change the codec of streams. An MPEG-21 Digital Item Adaptation (DIA) based transformation engine allows adjusting the data rate of scalable media streams. An intelligent decision-taking engine implements adaptive flow control which takes into account current network QoS parameters and congestion information. Measurements demonstrate the quality gains achieved through adaptive congestion control mechanisms under conditions typical for a heterogeneous network.  相似文献   

Harmonising codification and socialisation in knowledge management     

Apostolou  Dimitris  Abecker  Andreas  Mentzas  Gregoris 《知识管理研究与实践》2007,5(4):271-285

Knowledge Management Research & Practice - Decision makers process and combine manifold types of data, information and knowledge, available in various forms in the organisation. The aim of...  相似文献   

Quality Assurance in UK Higher Education: Issues of Trust, Control, Professional Autonomy and Accountability   总被引：5，自引：0，他引：5  

Andreas Hoecht 《Higher Education》2006,51(4):541-563

This article explores the issues of trust, control, professional autonomy and accountability in higher education quality assurance in the UK. The main part of this article is conceptual, but it includes results from semi-structured interviews with academic staff that were conducted at two “new university” business schools. Both institutions are broadly similar in their key characteristics and have experienced a transformation to university status in the early 1990s. The article argues that there has been a change from informal “light-touch” quality control systems based on local practices and a significant amount of trust and professional autonomy in the early 1990s to a highly prescribed process of audit-based quality control today. The article argues that accountability and transparency are important principles that academics should wholeheartedly embrace, but that the audit format adopted in the UK introduces a one-way accountability and provides “rituals of verification” (Power 1997) instead of fostering trust, has high opportunity costs and may well be detrimental to innovative teaching and learning.  相似文献   

Can't Ignore—Distraction by Task-Irrelevant Sounds in Early and Middle Childhood     

Nicole Wetzel  Florian Scharf  Andreas Widmann 《Child development》2019,90(6):e819-e830

Attention control abilities are relevant for learning success. Little is known about the development of audio-visual attention in early childhood. Four groups of children between the ages of 4 and 10 years and adults performed an audio-visual distraction paradigm (N = 106). Multilevel analyses revealed increased reaction times in a visual categorization task when task-irrelevant novel sounds were presented, demonstrating involuntary distraction of attention. This distraction effect decreased with age and significantly differed between age groups. In addition, the two youngest age groups responded with a delay in trials following a distractor trial, indicating delayed reallocation of attention to the task at hand. Results indicate a significant maturation of audio-visual attention control within a few years during early childhood that continues throughout middle childhood.  相似文献   

Adult education and the fostering of asylum seekers as “full” citizens     

Fejes  Andreas 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2019,65(2):233-250

International Review of Education - The role of adult education in the shaping and fostering of democratic citizens is prevalent in current transnational and national policy discussions; a...  相似文献   

How do teachers interpret and transform entrepreneurship education?     

Andreas Fejes  Mattias Nylund  Jessica Wallin 《课程研究杂志》2019,51(4):554-566

During the last decade, entrepreneurship education has become a central curricular topic in many locations in the world. In Sweden, entrepreneurship education was implemented in the curriculum for the first time in 2011, as something that should be included in all upper secondary school programmes. In this article, we focus on one of these programmes, the handicraft programme, investigating how entrepreneurship education is formulated in the latest curriculum and how teachers understand and transform such content in their teaching. Drawing on Bernstein’s concepts of classification and framing, we illustrate how entrepreneurship education in the Swedish curriculum has a ‘dual definition’, representing very different framing and classification, but still clearly belongs in a ‘market relevance’ discourse. This is expressed through the way in which the concept is transformed by teachers in their teaching. We also find that entrepreneurship education has low legitimacy among teachers, particularly when it is classified weakly. The weak framing and classification, taken together with the low legitimacy among teachers, are likely to lead to very different transformations of entrepreneurship education in different educational contexts. In the long run, this could have a negative effect on the equivalence of teaching at upper secondary school.  相似文献   

Students’ Socio-Scientific Reasoning in an Astrobiological Context During Work with a Digital Learning Environment     

Lena Hansson  Andreas Redfors  Maria Rosberg 《Journal of Science Education and Technology》2011,20(4):388-402

In a European project—CoReflect—researchers in seven countries are developing, implementing and evaluating teaching sequences using a web-based platform (STOCHASMOS). The interactive web-based inquiry materials support collaborative and reflective work. The learning environments will be iteratively tested and refined, during different phases of the project. All learning environments are focusing “socio-scientific issues”. In this article we report from the pilot implementation of the Swedish learning environment which has an Astrobiology context. The socio-scientific driving questions are “Should we look for, and try to contact, extraterrestrial life?”, and “Should we transform Mars into a planet where humans can live in the future?” The students were in their last year of compulsory school (16 years old), and worked together in triads. We report from the groups’ decisions and the support used for their claims. On a group level a majority of the student groups in their final statements express reluctance towards both the search of extraterrestrial life and the terraforming of Mars. The support used by the students are reported and discussed. We also look more closely into the argumentation of one of the student groups. The results presented in this article, differ from earlier studies on students’ argumentation and decision making on socio-scientific issues (Aikenhead in Science education for everyday life. Evidence-based practice. Teachers College Press, New York, (2006) for an overview), in that they suggest that students do use science related arguments—both from “core” and “frontier” science—in their argumentation and decision making.  相似文献   

Diagnosis and Monitoring of Basic Motor Competencies among Third-Graders in Luxembourg. An Assessment Tool for Teachers     

Claude Scheuer  Andreas Bund  Christian Herrmann 《Measurement in physical education and exercise science》2013,17(3):258-271

ABSTRACT

Basic motor competencies (in German: Motorische Basiskompetenzen; MOBAK) are performance dispositions empowering children to participate in the movement culture. For the diagnosis of basic motor competencies, a test instrument consisting of 15 test items for assessing third graders’ basic motor competencies was developed (MOBAK-LUX-3) and validated empirically. Basic motor competencies were operationalized as test items in the form of basic motor qualifications, which are cultural tools formulated as a minimum standard. Data (MOBAK-LUX-3, age, gender, migration background, weight, height, sport club membership, weekly physical activity) were collected in 2015 amongst third-graders in elementary school in Luxembourg (N = 488; 50.4% female; M age = 8.8 years, SD = .51). A confirmatory factor analysis confirmed a four-factor structure (locomotion, object control, moving in water, object locomotion; CFI = .94; TLI = .92; RMSEA = .036; WRMR = 0.89). Five classes with different competence profiles were determined through latent class analysis. The MOBAK-LUX-3 test instrument satisfies test theory requirements and can be used to determinate motor competence profiles.  相似文献   

Group formation based on learning styles: can it improve students’ teamwork?     

Maria Kyprianidou  Stavros Demetriadis  Thrasyvoulos Tsiatsos  Andreas Pombortsis 《Educational technology research and development : ETR & D》2012,60(1):83-110

This work explores the impact of teacher-led heterogeneous group formation on students?? teamwork, based on students?? learning styles. Fifty senior university students participated in a project-based course with two key organizational features: first, a web system (PEGASUS) was developed to help students identify their learning styles and distribute them to heterogeneous groups. Second, group facilitation meetings were introduced as a technique to help students reflect on their weak/strong traits and employ appropriate roles in their group. The study research questions focused mainly on students?? attitudes regarding the learning style-based group formation approach. By applying qualitative research method students?? views were recorded about the impact of styles awareness and group heterogeneity on group collaboration and possible benefits and drawbacks related to the style-based grouping approach. Evaluation data revealed that students gradually overcame their initial reservations for the innovative group formation method and were highly benefited since styles heterogeneity within the group emphasized complementarities and pluralism in students?? ways of thinking. Overall, this work provides evidence that the adoption of learning styles theories in practice can be facilitated by systems for automated group formation and supportive group facilitation meetings that help avoiding the trivial and discouraging approach of using learning styles to simply label students.  相似文献