OECD国家教育评价发展的关键主题检视

面对成员国教育评价体系缺乏内部统一、各构成要素之间缺乏协同合作的现状,OECD在大规模跨国调查和研究的基础上于2013年提出了新的教育评估和评价框架,它涵盖了课堂、学校、教育系统三个层面,由学生评价、教师评价、学校领导者评价、学校评估、教育制度评估和政策/项目评估5类评价构成.基于该诠释框架,构建完整、趋同、协同合作的评价体系,评价与学生学习目标保持一致,将学生置于评价中心,关注课堂教学实践的改进,发挥独立的专业评估机构的作用,提升评价素养,着力推进大数据的应用,将成为OECD国家教育评价发展优先考虑的关键主题.     

Applications of augmented reality-based natural interactive learning in magnetic field instruction

Educators must address several challenges inherent to the instruction of scientific disciplines such as physics -- expensive or insufficient laboratory equipment, equipment error, difficulty in simulating certain experimental conditions. Augmented reality (AR) can be a promising approach to address these challenges. In this paper, we discuss the design and implementation of an AR and motion-sensing learning technology that teaches magnetic fields in a junior high school physics course. The purpose of this study is to explore the effects of using natural interaction on students’ physics learning and deep understanding compared to traditional learning tools. The 38 eighth graders who participated in this study were assigned to either an experimental group or a control group. Analysis of the results shows that the AR-based motion-sensing software can improve students’ learning attitude and learning outcome. This study provides a case for the application of AR technology in secondary physics education.     

User simulations for evaluating answers to question series

Recently, question series have become one focus of research in question answering. These series are comprised of individual factoid, list, and “other” questions organized around a central topic, and represent abstractions of user–system dialogs. Existing evaluation methodologies have yet to catch up with this richer task model, as they fail to take into account contextual dependencies and different user behaviors. This paper presents a novel simulation-based methodology for evaluating answers to question series that addresses some of these shortcomings. Using this methodology, we examine two different behavior models: a “QA-styled” user and an “IR-styled” user. Results suggest that an off-the-shelf document retrieval system is competitive with state-of-the-art QA systems in this task. Advantages and limitations of evaluations based on user simulations are also discussed.     

中国企业品牌国际化问题分析与思考

随着经济全球化进程的加快，国际竞争日趋激烈，企业国际化问题越来越引起企业和学术界的关注。品牌国际化是企业进入世界市场、参与国际竞争的重要手段。本文分析比较了中国民族企业与国际企业在品牌意识、品牌定位、品牌信誉、品牌宣传手段及品牌管理等方面存在的问题，提出中国企业品牌国际化的对策与建议。     

服务产业创新的"逆向产品周期"模型

有形产品创新中的“A-U模型”已成为描述制造业技术创新演变规律的一般模型,而对服务业的创新演变规律学者们至今没有形成统一的认识,也不存在一个获得普遍认可的理论模型。本文介绍Barras提出的“逆向产品周期(RReverse Product Cycle:RPC)”模型,并对模型的局限性和意义进行探讨。     

数字图书馆:图书馆发展的阶段性产物

介绍了数字图书馆的概念,分析了数字图书馆与传统图书馆的关系,提出数字图书馆是图书馆发展的阶段性产物这一观点,并加以论证。     

银川平原浅层地下水资源和水盐调控研究

在阐述银川平原浅层地下水形成分布规律性的基础,首次在该地区采用三维地下水有限差分模型计算了地下水资源量、补排组构和可利用量。论证和提出用有害盐量取代以往惯用全盐量评价盐害和计算排引比的传统做法,通过水盐均衡计算指出30多年来灌区——直处在脱盐状态。论证和提出了银北灌区各类水量的宏观调控意见,动态模拟计算了不同规划水平年引、排水9套方案,提出了不同地区和采用不同方案引用黄河水量和开发利用地下水量的意见。     

学习型组织研究综述(上)

在对人性假设研究的基础上,综述了学习型组织的发展及其原因的研究,学习型组织引发的神话及学习型组织的核心概念,个体学习,组织学习,学习型组织的诠释研究。