单一和多种途径反馈对运动技能形成的影响

通过对两种练习方法———听觉信号反馈和听觉加视觉信号反馈在提高体育院校普修课学生长传球准确性的教学效果进行实验对比研究,以找出更好的提高体育院校普修课学生长传球准确性的练习方法。实验结果表明,听觉加视觉信号反馈的练习方法对长传球准确性的教学效果要好于听觉信号反馈的练习方法。     

A behavioural dynamic model of the relative age effect

Abstract

The relationship between date of birth and success in a variety of sports, including hockey, is well established. This phenomenon is known as the relative age effect (RAE). We model the RAE in Canadian youth hockey as a positive feedback loop where an initial age advantage is reinforced through additional training and playing opportunities based on perceived skill superiority. The same causal mechanism leads to a higher quit rate for relatively younger players. Our model effectively replicates the birth month distribution of Canadian National Hockey League players (R² = 86.79%) when driven by Canadian birth distributions. We use this model to evaluate three policies that aim to lessen the RAE. All of the policies reduce the RAE with a significant delay. The most effective policy is a combination of providing additional support to age disadvantaged children and rotating the cut-off date for youth leagues between January 1st and July 1st annually. In equilibrium, this approach leads to a 96% reduction in the RAE compared to the base case.     

Measuring perceptions of the learning environment and approaches to learning: validation of the learn questionnaire

While focus on quality in Danish higher education has been growing in recent years, limited attention has been devoted to developing and thoroughly validating instruments that allow collecting data about university students’ perceptions of the teaching-learning environment. Based on data from a large sample of Danish university students, a Danish version of the Learn questionnaire was validated using confirmatory and exploratory factor analysis. Analyses confirmed the existence of three scales reflecting students’ approaches to learning and six scales reflecting students’ perception of the teaching-learning environment. The results suggest that the Danish version of Learn is a valid instrument to be used for evaluation of the teaching-learning environment as well as for research into Danish university students’ learning strategies.     

金融资产泡沫形成的心理因素

信息的不完全性及不对称性决定了预期只能是有限理性的,心理因素在金融资产泡沫的形成中扮演了重要的角色。因此,行为主体只能是根据自己认识到的约束和自己拥有的信息结构寻求利益最大化,不可避免地会受到心理因素的影响。羊群心理、博傻心理及正反馈交易一定程度上都会影响资产价格的形成。     

提高大学英语合作学习效果的实践性探究

在分析合作式学习模式存在问题的基础上,对提高大学英语合作学习效果做了实践性探索。重点描述了合作学习的具体操作方式,在理论和实践的基础上阐述了拓展合作范围、进一步提升合作学习效果的可行性和科学性。     

Formative assessment: the role of participatory action research in blending policy and practice in Uganda

This paper documents teachers’ assessment practices and pupils’ learning to read and write in large classes. To gain insights into the assessment practices and pupils’ learning, the principles of Vygotsky’s zone of proximal development and participatory action research (PAR) design were adopted. Collaboratively, teachers reflected on their assessment practices, developed, implemented and monitored the assessment practices. Through observation, in-depth interview and review of exercise books, data were obtained. We argue that teachers’ involvement in PAR has contributed to changing assessment practices in large classes and in improving pupils’ competencies in reading and writing. On the other hand to promote better assessment practices, we advocate for reduced number of pupils in a class and teachers’ workload to enable them offer more support to the pupils during assessment of reading and writing.     

Ten Years of Puzzling about Audience Awareness

The decisions evaluators make regarding how to work with teachers through the annual evaluation process can have a positive impact on teacher growth and student learning. In this article, the author examines the quality of feedback and how administrators use and provide this feedback to teachers through the evaluation process. What constitutes quality feedback? How does quality feedback support teachers' instruction? How can the supervision and evaluation process offer both teachers and administrators an opportunity to work together to improve student learning? The evaluation process should support the goal of maintaining a high level of quality instruction. In the end, the goal is to increase student learning by improving the effectiveness of teaching.     

浅谈"研究性教学"的课堂教学

有效的数学学习不能单纯地依赖模仿与记忆,动手实践、自主探索是学生学习数学的重要方式,也是有效培养学生探索能力与创新精神的重要途径.在两年多实践研究的基础上,我们构建并实践了初中数学"研究性教学"的课堂教学模式,概括提炼了教学实施的基本原则,提出了相应的教学对策,积累了一些典型的教学案例.     

The effect of peer feedback for blogging on college students' reflective learning processes

Reflection is an important prerequisite to making meaning of new information, and to advance from surface to deep learning. Strategies such as journal writing and peer feedback have been found to promote reflection as well as deep thinking and learning. This study used an empirical design to investigate the interaction effects of peer feedback and blogging on college students' reflective thinking skills and their learning approaches. Forty-four first- and second-year undergraduate students participated in the study. Students kept blogs each week throughout a whole semester. Two journals were sampled at the beginning and end of the semester for each student. A repeated measure one-way ANOVA suggested that students' reflective thinking level increased significantly over time; however, peer feedback was found to negatively affect students' reflective thinking skills. The result of the study suggests more carefully designed uses in the future.     

数字图书馆中的检索结果聚类和关联推荐研究

探讨如何在数字图书馆的文献检索平台中集成实现检索结果聚类、相关文献的关联推荐、相关作者和研究机构的关联推荐以及相关词语的关联推荐,由此帮助用户全面提高查准率和查全率,并且对聚类和推荐结果采用图形进行可视化展示,进一步提高用户的使用满意度。