The impact of an elaborated assessee’s role in peer assessment

The purpose of this study was to investigate the effects of an elaborated assessee’s role on metacognitive awareness, performance and attitude in peer assessment. Two intact groups (a total of 82 students) were randomly assigned to a treatment condition (having back‐feedback activity) or a control condition (not having back‐feedback activity). The results indicated that, regarding metacognitive awareness, when participants played the elaborated assessee role, they tended to report higher metacognitive awareness in their learning process. Regarding performance, when participants played the elaborated assessee role, they tended to receive better scores in making a concept map. Regarding attitude, when participants played the elaborated assessee role, they reported greater motivation towards the peer assessment. The findings of this study suggest instructional implications for those who want to employ peer assessment as a learning method by showing the effectiveness of a well‐developed role design, specifically one that includes the back‐feedback activity.     

开放大学面临的挑战：来自韩国的案例

韩国国立开放大学有过成功的历史，但目前它正处在困境之中。本文通过数据分析，描述了开放大学所存在的主要困难：①报名人数和在学学生的人数急剧减少；②学生注册率呈连续下降趋势；③学生出现女性化和大龄化的趋势；④学生数量少于招生指标的院系数目增多，不同院系学生数量之间的差距增大。根据韩国开放大学的经验，作者提出以下建议：把学生数维持在一个合理的范围内；开放大学要尽力提高教育质量。     

Detection of Differential Item Functioning in Multiple Groups

Detection of differential item functioning (DIF) is most often done between two groups of examinees under item response theory. It is sometimes important, however, to determine whether DIF is present in more than two groups. In this article we present a method for detection of DIF in multiple groups. The method is closely related to Lard's chi-square for comparing vectors of item parameters estimated in two groups. An example using real data is provided.     

Teacher Talk and Pupil Thought

Classroom activities were observed and audiotaped in four schools for pupils with moderate learning difficulties. Teacher talk which encouraged reflection by pupils was identified and categorised. Characteristic teacher styles emerged which differed mainly in the extent to which they encouraged pupils to reflect, by justification, explanation and metacognition, for example. Teacher styles in classroom interaction were related to their views on the nature and source of their pupils’ learning difficulties and on the role of cognitive challenge in helping their school achievement.     

Education,Class and Culture: the Birmingham ethnographic tradition and the problem of the new middle class

The ethnographies of youth culture and schooling produced by the Birmingham Centre for Contemporary Cultural Studies and its followers had a major impact on educational sociology during the late 1970s and 1980s. Despite this invaluable contribution, important theoretical and methodological problems emerged in their treatment of class and culture. In particular, the untheorised presence of the ‘new middle class’ and a confusing notion of ‘dominant culture’, weakened the coherence of their analyses. This article traces these problems from the early studies of youth culture through to more recent school ethnographies. It concludes by stressing the relevance of critical concepts like class and culture within contemporary debates emerging from the ‘new’ educational settlement     

Improving the learning of newly qualified teachers in the induction year

Newly qualified teachers of mathematics and science are a precious resource and it important that they are provided with appropriate support and challenge during their first year in post. This study examines the developing thinking and practice of a group of such teachers in England and the influence of their mentors within the workplace context of the school. We argue that thinking and practice is restricted by the concern to ‘fit in’, by the belief that behaviour management should be addressed before teaching can be developed and by a lack of attention to the development of pedagogical thinking. We conclude that there is a need to change the beliefs and practices of induction mentors and develop their skills in discussing pedagogical ideas. This is most likely to be achieved within a school‐wide culture of continuing professional learning.     

Topology evolutions of silhouettes

We give the topology changing of the silhouette in 3D space while others study the projections in an image. Silhou- ettes play a crucial role in visualization, graphics and vision. This work focuses on the global behaviors of silhouettes, especially their topological evolutions, such as splitting, merging, appearing and disappearing. The dynamics of silhouettes are governed by the topology, the curvature of the surface, and the view point. In this paper, we work on a more theoretical level to give enu- merative properties of the silhouette including: the integration of signed geodesic curvature along a silhouette is equal to the view cone angle; in elliptic regions, no silhouette can be contained in another one; in hyperbolic regions, if a silhouette is homotopic to a point, then it has at least 4 cusps; finally, critical events can only happen when the view point is on the aspect surfaces (ruled surface of the asymptotic lines of parabolic points with surface itself). We also introduce a method to visualize the evolution of silhouettes, especially all the critical events where the topologies of the silhouettes change. The results have broad applications in computer vision for recognition, graphics for rendering and visualization.     

Cross-grade analysis of Chinese students’ English learning motivation: a mixed-methods study

This mixed-methods study investigated the changes in Chinese students’ motivation to learn English from elementary to high school and explored the reasons for these changes at different school levels. A motivational questionnaire was designed and administered to 3,777 elementary, junior high, and high school students, and follow-up interviews were then conducted with nine students in order to investigate their perceptions of their motivations. Seven subcomponents of motivation were identified. The statistical results revealed that junior high school students had the highest learning motivation, followed by those in elementary school and those in high school. The interview data indicated that parents’ positive influence on students’ English learning motivation was greater for junior high school students compared to elementary and high school students. Furthermore, the pressure of the college entrance examination had a negative influence on high school students’ motivation to learn English. Based on the findings of this study, suggestions for further research are provided.     

Examining Equivalence of Accommodations on a Statewide Elementary-Level Science Test

This study examined the extent to which the underlying factor structure of the 2005 South Carolina Palmetto Achievement Challenge Tests (PACT) in science for grades 3, 4, and 5 was equivalent for students who were administered the test in a regular (standard) or accommodated form. Three accommodation groups were of interest: students who received any testing accommodations, students who received any testing accommodations excluding those for whom setting was the only accommodation provided, and students who received the oral administration accommodation. Each accommodation group was compared to a matched sample of the regular group. It was found that the science test for a given grade level is appropriately described by the factor model for regular and accommodation groups. Results indicated that the factor structure, factor loadings, and error variances of the science test were similar across the regular and accommodation groups.