Videobased lesson analysis: Effective science PD for teacher and student learning

The Science Teachers Learning from Lesson Analysis (STeLLA) project is a videobased analysis‐of‐practice PD program aimed at improving teacher and student learning at the upper elementary level. The PD program developed and utilized two “lenses,” a Science Content Storyline Lens and a Student Thinking Lens, to help teachers analyze science teaching and learning and to improve teaching practices in this year‐long program. Participants included 48 teachers (n = 32 experimental, n = 16 control) and 1,490 students. The STeLLA program significantly improved teachers' science content knowledge and their ability to analyze science teaching. Notably, the STeLLA teachers further increased their classroom use of science teaching strategies associated with both lenses while their students increased their science content knowledge. Multi‐level HLM analyses linked higher average gains in student learning with teachers' science content knowledge, teachers' pedagogical content knowledge about student thinking, and teaching practices aimed at improving the coherence of the science content storyline. This paper highlights the importance of the science content storyline in the STeLLA program and discusses its potential significance in science teaching and professional development more broadly. © 2011 Wiley Periodicals, Inc., J Res Sci Teach 48: 117–148, 2011     

隐喻语篇连贯功能与英语阅读教学研究

隐喻具有语篇连贯功能,把隐喻应用到英语阅读教学中不仅能调动学生学习的积极性,增强跨文化交际的能力,而且能从认知的高度深入理解篇章所表达的内涵意义,进而培养学生用英语进行思维的习惯,写出生动、形象、连贯、通顺的英语文章。     

如何应对历史专题教学下的初高中衔接问题

要让学生顺利地实现初高中历史学习的衔接,应激发学生的兴趣,帮助学生构建历史知识体系,渗透历史思维能力培养,并指导学生学习方法,增强其自主意识。     

语篇分析视角下古诗翻译中的衔接与连贯——以《送友人》为例

衔接和连贯是语篇分析中的两个重要术语。文章主要以前人对语篇分析与翻译的研究为基础,通过对比李白《送友人》的不同译本,从语篇分析的角度对古诗翻译中的衔接与连贯进行分析。同时指出在翻译古诗时,要理清古诗内在的逻辑关系,恰当运用各种语篇衔接手段,使译文保持自然和连贯。     

目的论视角下的影视剧字幕翻译研究

目的论把翻译行为视为一种有目的的跨文化交际活动,在翻译过程中要遵循目的准则、忠实和连贯准则。影视剧字幕翻译的交际功能决定了译者不仅要考虑两种语言的差异,更要考虑到目的语观众期待、文化背景等,以目的论的三大准则为指导,灵活地采用合适的翻译策略和方法。     

隐喻的语篇建构功能探究

作为一种语用现象,隐喻在语篇中起着重要作用。隐喻体现了发话人的意图,具有较高的信息性,受到语境的影响和支配,隐喻的语篇建构功能在受话人寻求可接受性的过程中通过语篇连贯得以实现。     

光波场的相干性

本文给出了描述光场相干性的基本物理量,从迈克尔逊干涉实验出发,讨论了时间相干性;以矩形谱线的光源为例,计算了时间相干度,简要介绍了傅里叶变换光谱学原理。     

蓝细菌体系中外噪音维持的生物钟

采用数值模拟方法 ,研究了外部色噪音对蓝细菌生物钟体系的影响。结果表明,外噪音可以在体系的确定性稳态区诱导产生振荡和相干共振;在确定性振荡区,外噪音对振荡起到了破坏性作用,但是振荡的周期并没有随着外噪音的增加而明显变化,说明体系对外噪音具有鲁棒性;而在右侧分叉点附近的确定性振荡区,也发现了外噪音诱导相干共振现象。另外,研究了噪音相关时间的影响,发现其与噪音强度起相反的作用。     

论连贯假设的关联性解释

正常的交际过程中存在对传递信息的关联性承诺和假设：说话人传递相关的信息;听话人期待和寻找相关信息。关联性假设在语篇理解中表现为连贯假设。读者假设前文所含信息与后继语篇内容在语义上存在相关性,并通过推理手段完成语篇连贯的重构。     

Coherence in professional education: does it foster dedication and identification?

This article examines the impact of professional education on students' dedication to and identification with a profession. The premise is that professional education is not only about knowledge acquisition and reasoning but also about attitudes and aspirations. In fostering dedication and identification, students' experiences of relevance seem to be important. The concept of coherence seen as an expression of relevance is introduced and measured by four kinds of interactions: Theory–practice interaction, teacher–student interaction, peer interaction and supervisor–student interaction. Analysis indicates that coherence, particularly as theory–practice interaction, peer interaction and supervisor–student interaction, has a significant impact on dedication to and identification with a profession. Longitudinal survey data – collected from students in colleges for teaching, nursing and social work – are analysed.