体育科研三维方法述要(上)

将常规的体育科研方法区分为三个相互关联的维度，其中，取材维含括观察、实验、假设三层阶，分别强调思考、目标、理论的不可或缺性；程序维依循一般思辨、专一选题、采集素材、整理素材、推理判断，验察修正六环节；课题维则从生物性学科和社会性学科两大方面寻求变革。最后还论及撰写文章十要点和缩减文字三要诀。     

乐理教学中的几个基本概念问题

在乐理教学实践中,有不少专著(包括译本)、教材对变化音、音程、等音、调式交替等基本概念的阐述存在着不妥之处,对之加以比较分析,就此提出一些个人的意见和看法。     

《现代成语巨典》所收“洗手革面”质疑

《现代成语巨典》堪称一部规模巨大，影响广泛的成语类语文工具书。但是该词典选收词条有失察，失当之处。如其所收“洗手革面”既非历史上沿用下来的成语，也不是新出现的所谓现代成语，更不是“洗心革面”的异体，变体，仿拟或翻造，因此该词典收入“洗手革面”，既违背其编写宗旨，也给读者造成不良影响，实属误收，应在再版时加以修正。     

我国电子资源引进的发展策略研究

针对电子资源采购的国际发展动态 ,分析我国电子资源引进的现状 ,根据电子资源自身的类型和特点 ,提出多元化、分层次引进电子资源的构想 ,并根据我国的实际情况提出相应的对策     

Analysis of Statistical Question Classification for Fact-Based Questions

Question classification systems play an important role in question answering systems and can be used in a wide range of other domains. The goal of question classification is to accurately assign labels to questions based on expected answer type. Most approaches in the past have relied on matching questions against hand-crafted rules. However, rules require laborious effort to create and often suffer from being too specific. Statistical question classification methods overcome these issues by employing machine learning techniques. We empirically show that a statistical approach is robust and achieves good performance on three diverse data sets with little or no hand tuning. Furthermore, we examine the role different syntactic and semantic features have on performance. We find that semantic features tend to increase performance more than purely syntactic features. Finally, we analyze common causes of misclassification error and provide insight into ways they may be overcome.     

关于具有两个二次代数曲线解的三次系统的极限环

本文介绍近年来在这方面研究的进展情况,同时给出一些新的结果,并提出一些尚未解决的问题。     

“李吉林情境教育探索”再理解

李吉林的情境教育思想是既有理论依据,又有相应行动方案,且经过亲身实践验证的教育思想;在李吉林的情境教育探索中,学生不仅是教师所创构的情境的享受者,而且是不断形成、丰富、优化的师生共同情境的创构者;情境教育特别需要教师有爱心、童心及恒心;李吉林的情境教育探索不仅含有"中国元素"、具有"中国特色",而且含有"人类元素"、具有"世界意义"。     

“一题十想”实现习题效能最大化

针对学生做了大量习题但收效却不大这种教学中常见的现象，分析了原因，并指出教师要通过引导学生“一题十想”，明晰解题思路，总结解题规律，实现习题效能的最大化。     

无约束优化问题的修正WYL共轭梯度法及其收敛性质

在相关文献的基础上，提出无约束优化问题的修正WYL共轭梯度法，该方法不依赖于任何线搜索而满足充分下降性，证明了采用Arimijo型线搜索算法的全局收敛性，及在适当条件下算法具有R-线收敛速率，证明了采用重开始策略时算法具有n步二次收敛性。     

Global convergence or national variation? Examining national patterns of classroom instructional practices

The world culture framework posits a convergence in the organisation of education across the world. On the other hand, scholars observing teaching practices inside classrooms find significant variation among nations and regions of the world. This study examined the global change patterns of classroom practices at the between- and within-country levels, drawing on teacher reports from the Trends in Mathematics and Science Study. Results indicate clear between-country convergence toward more student-centred and conceptual instruction. But a nation’s degree of conformity or resistance to this model was contingent upon other nation-specific factors, including centralised curriculum control or world regional location.