Democratic Experience and the Democratic Challenge: A Historical and Comparative Citizenship Education Study of Scandinavian Schools     

Jonas Lieberkind 《Scandinavian Journal of Educational Research》2013,57(6):710-730

In Scandinavian schools, there is a significant tradition for creating a democratic context of experience; this tradition is gradually being challenged by new political and economic movements and increasing focus on tests, assessments, knowledge, and skills. The purpose of this study is to analyze and discuss the status of the current context of experience in Scandinavian schools and the students' perceptions of the classroom environment. The study is based on a historical and secondary analysis of the International Civic and Citizenship Education Study (ICCS). The ICCS is large-scale comparative study investigating more than 140,000 Year 8 students in more than 5,300 schools from 38 countries. The conclusion is that the Scandinavian school still, to a considerable degree, develops a democratic and open environment. However, this is not without challenges. The results reveal an asymmetry between the open dialogue-based classroom and the students' poor influence in decision-making at school.  相似文献   

Leg amputation side determines performance in curve sprinting: a case study on a Paralympic medalist     

Johannes Funken  Kai Heinrich  Steffen Willwacher  Ralf Müller  Jonas Böcker  Hiroaki Hobara 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(1):75-87

The lower limb kinetics of curve sprinting in amputees are not well described in the literature, particularly with respect to the effect of the side of amputation. This is an issue due to the importance of the knowledge for prosthetic design and classification of athletes. Thus, the aim of this study was to investigate the influence of side of amputation on curve sprinting performance in athletes with a unilateral leg amputation. A three-dimensional motion analysis system (Vicon), four force plates (Kistler) and a modified mathematical human model (ALASKA) were used to compare clockwise and counter clockwise curve sprinting lower limb kinematics and kinetics of a Paralympic medalist with a left-sided knee exarticular amputation. Results reveal that vertical ground reaction force application and total vertical impulse were lower when the affected limb was at the inside of the curve. The unaffected limb showed joint mechanics different to those established for non-amputee athletes and might contribute better to propulsion when being the inside limb. Curve sprinting biomechanics and the ability to attain high radial velocities are directly dependent on the side of amputation relative to the curve direction in a unilateral amputee athlete of highest performance level.  相似文献   

A comparison of haemolytic responses in fore-foot and rear-foot distance runners     

Stuart Caulfield  Kirsty A. McDonald  Brian Dawson  Sarah M. Stearne  Ben A. Green  Jonas Rubenson 《Journal of sports sciences》2016,34(15):1485-1490

This study examined the haemolytic effects of an interval-based running task in fore-foot and rear-foot striking runners. Nineteen male distance runners (10 fore-foot, 9 rear-foot) completed 8 × 3 min repeats at 90% vVO_2peak on a motorised treadmill. Pre- and post-exercise venous blood samples were analysed for serum haptoglobin to quantify the haemolytic response to running. Vertical ground reaction forces were also captured via a force plate beneath the treadmill belt. Haptoglobin levels were significantly decreased following exercise (P = 0.001) in both groups (but not between groups), suggesting that the running task created a haemolytic stress. The ground reaction force data showed strong effect sizes for a greater peak force (d = 1.20) and impulse (d = 1.37) in fore-foot runners, and a greater rate of force development (d = 2.74) in rear-foot runners. The lack of difference in haptoglobin response between groups may be explained by the trend for fore-foot runners to experience greater peak force and impulse during the stance phase of their running gait, potentially negating any impact of the greater rate of force development occurring from the rear-foot runners’ heel strike. Neither type of runner (fore-foot or rear-foot) appears more susceptible to technique-related foot-strike haemolysis.  相似文献   

The influence of content knowledge on teaching and learning in Traditional and Sport Education contexts: an exploratory study     

Peter Iserbyt  Phillip Ward  Jonas Martens 《Physical Education & Sport Pedagogy》2016,21(5):539-556

Background: Our understanding of the role in which content knowledge (CK) can strengthen instructional models and how that knowledge matters for professional development is limited. It is contended that mere use of an instructional model is insufficient to impact psychomotor learning in meaningful ways.

Purpose: This study was conducted to investigate how a teacher's enacted pedagogical content knowledge (PCK) differed as a function of CK and Sport Education (SE), and to investigate the relative contribution of CK and Sport Education on student learning in terms of swimming performance.

Methods: Four intact classes comprising 88 secondary school students (age: 16–17 years) were randomly assigned to a Traditional, an Sport Education, a Traditional-CK, and a SE-CK group. All classes were taught by the same teacher during a 10-day unit of instruction in the front crawl.

Results: Results showed that the teacher's PCK differed as a function of improved CK. For verbal representations, the amount of cues in the Traditional-CK and SE-CK groups increased about sixfold compared to the Traditional and the SE group. For visual representations, more partially incorrect demonstrations were observed than correct demonstrations in the Traditional and the SE group. More mature and developmentally appropriate tasks were observed in the Traditional-CK and the SE-CK group compared to the Traditional and the SE group. Students in the Traditional-CK and SE-CK groups demonstrated a significant reduction of their amount of strokes on 50?m compared to the Traditional group. A significant interaction effect revealed a larger increase in swimming performance in the CK groups compared to the Traditional and the SE group. Finally, students in the SE group swam significantly more laps than their counterparts in the other groups.

Discussion and conclusion: These results show the impact on student learning when CK was added to both Traditional and Sport Education conditions and contribute to the literature for pre- and in-service teachers. The Sport Education model did not contribute to students’ swimming performance. Students in the Traditional and the SE group did not get the same quality of instruction as students in the Traditional-CK and SE-CK conditions. The latter groups received content that was presented differently both as a presentation and in terms of the actual task. In short, students in the Traditional and Sport Education conditions experienced the content differently than those in the Traditional-CK and SE-CK conditions. These instructional differences resulted in students in the Traditional-CK and SE-CK conditions improving their swimming performances in terms of technical efficiency and in terms of 50?m times.  相似文献   

Considering student retention as a complex system: a possible way forward for enhancing student retention     

Jonas Forsman  Maartje van den Bogaard  Cedric Linder  Duncan Fraser 《European Journal of Engineering Education》2015,40(3):235-255

This study uses multilayer minimum spanning tree analysis to develop a model for student retention from a complex system perspective, using data obtained from first-year engineering students at a large well-regarded institution in the European Union. The results show that the elements of the system of student retention are related to one another through a network of links and that some of these links were found to be strongly persistent across different scales (group sizes). The links were also seen to group together in different clusters of strongly related elements. Links between elements across a wide range of these clusters would have system-wide influence. It was found that there were no elements that are both persistent and have system-wide effects. This complex system view of student retention explains why actions to enhance student retention aimed at single elements in the system have had such limited impact. This study therefore points to the need for a more system-wide approach to enhancing student retention.  相似文献   

Regular Feedback from Student Ratings of Instruction: Do College Teachers Improve their Ratings in the Long Run?     

Jonas W. B. Lang  Martin Kersting 《Instructional Science》2007,35(3):187-205

The authors examined whether feedback from student ratings of instruction not augmented with consultation helps college teachers to improve their student ratings on a long-term basis. The study reported was conducted in an institution where no previous teaching-effectiveness evaluations had taken place. At the end of each of four consecutive semesters, student ratings were assessed and teachers were provided with feedback. Data from 3122 questionnaires evaluating 12 teachers were analyzed using polynomial and piecewise random coefficient models. Results revealed that student ratings increased from the no-feedback baseline semester to the second semester and then gradually decreased from the second to the fourth semester, although feedback was provided after each semester. The findings suggest that student ratings not augmented with consultation are far less effective than typically assumed when considered from a long-term perspective.  相似文献   

Confidence and reliability measures in speaker verification     

Jonas Richiardi  Andrzej Drygajlo  Plamen Prodanov 《Journal of The Franklin Institute》2006,343(6):574-595

Speaker verification is a biometric identity verification technique whose performance can be severely degraded by the presence of noise. Using a coherent notation, we reformulate and review several methods which have been proposed to quantify the uncertainty in verification results, some with a view to coping with the effects of mismatched training-testing environments. We also include a recently proposed method, which is firmly rooted in a probabilistic approach and interpretation, and explicitly measures signal quality before assigning a reliability value to the speaker verification classifier's decision. We evaluate the performance of the confidence and reliability measures over a noisy 251-users database, showing that taking into account signal-domain quality can lead to better accuracy in prediction of classifier errors. We discuss possible strategies for using the measures in a speaker verification system, balancing acquisition duration and verification error rate.  相似文献   

Developing Instructional Web Sites – A Software Engineering Approach     

Jonas A. Montilva  Beatriz Sandia  Judith Barrios 《Education and Information Technologies》2002,7(3):201-224

This paper focuses on the application of software engineering practices to the development of instructional web sites. The development of a web site, to support a distance or campus-based online course, is a very complex process that involves many instructional and technical aspects, including the instructional purpose of the course, its content, its structure, its interface, and its teaching–learning activities. The use of a method is essential for dealing with the complexity of this process. We describe, in this paper, a software engineering method that helps course designers and teachers to develop high quality instructional web sites. The design of the method was based on the integration of well-known principles, concepts and process models borrowed from instructional design, method engineering, and object-oriented software engineering. The method addresses the managerial processes required to plan, organize, and control the project, as well as the instructional and technical activities involved in the development of high quality course sites.  相似文献   

The roots and routes of environmental and sustainability education policy research     

Katrien Van Poeck  Jonas A. Lysgaard 《Environmental Education Research》2016,22(3):305-318

Environmental Education Research has developed a Virtual Special Issue (VSI) (http://explore.tandfonline.com/content/ed/ceer-vsi) focusing on studies of environmental and sustainability education (ESE) policy. The VSI draws on key examples of research on this topic published in the Journal from the past two decades, for three reasons. First, to provide readers with a series of snapshots into the genealogy of ESE policy research in this field. Second, to encourage renewed attention to previously published work. And third, to offer commentary on the evolution of research trends, approaches and findings.  相似文献   

The impact of student feedback on teaching in higher education     

Jonas Flodén 《Assessment & Evaluation in Higher Education》2017,42(7):1054-1068

Receiving feedback from students has become a normal part of life for university teachers worldwide. This puts pressure on them from several sides and may be an influential factor that leads them to tailor their teaching to students’ preferences. The aim of this study was to investigate teachers’ perceptions of student feedback and how it affects their teaching choices. A survey was sent out to all teachers at the School of Business, Economics and Law at the University of Gothenburg, Sweden. The study found that student feedback is perceived positively by university teachers, has a large impact on their teaching and helps improve courses. Student feedback pushes teaching in the direction of fewer lectures and more tutorials, seminars and case studies. Teachers receiving negative student feedback experience more negative feelings related to the feedback, and are also more likely to introduce unjustified changes to their teaching in order to please students. These teachers also tend to have less teaching experience. However, a very large majority of teachers have a high level of professional pride and integrity and do not make (as they perceive them) unjustified changes to their teaching.  相似文献