Constructing Scientific Explanations Through Writing   总被引：4，自引：0，他引：4  

Perry D. Klein 《Instructional Science》2004,32(3):191-231

This study examined the writing strategies andtext characteristics associated withdiscovering a scientific principle by writingabout an experiment. Sixty-four universitystudents (non-science majors) carried out aphysics experiment concerning either buoyancy,or the forces acting on a balance scale, thenwrote an informal journal-style note about itwhile thinking-aloud. They providedexplanations of the phenomena beforeexperimenting, immediately after experimenting(before writing), and again after writing aboutthe experiment. Students' verbal protocolswere segmented and writing operations wereidentified; the rhetorical structures of theirtexts were analyzed; and each students' levelof general writing strategy was identified. Afactor analysis showed that six componentsaccounted for 76% of the variance in thesemeasures. Logistic regression analysis showedthat type of science experiment and two writingfactors, Problem Solving and Comparisons inText, discriminated 86% of cases in whichstudents made explanatory gains during thewriting interval. The results generallyexemplified a metacognitive, problem solvingmodel of writing to learn. However, incontrast to dominant metacognitive models,setting content goals, applying moderatelysophisticated writing strategies, and extensiveuse of content sources were important for learning.  相似文献   

CHARACTER, CIVIC RENEWAL AND SERVICE LEARNING FOR DEMOCRATIC CITIZENSHIP IN HIGHER EDUCATION   总被引：1，自引：0，他引：1  

John  Annette    《British Journal of Educational Studies》2005,53(3):326-340

ABSTRACT:  This article explores the civic republican conception of citizenship underlying the Labour government's programme of civil renewal and the introduction of education for democratic citizenship. It considers the importance of the cultivation of civic virtue through political participation for such developments and it reviews the research into how service learning linked to character education can lead to the civic virtue of duty or social responsibility.  相似文献   

一类带常利率的更新过程     

汪春华 《宁波职业技术学院学报》2007,11(5):6-9

在最近的研究中人们对经典的破产模型进行了一系列的补充,但对于索赔基本都认为是独立同分布的,但事实并非如此。在这里研究了一种模型,只要求索赔是无关的,但分布相同。并推导出了破产概率公式。  相似文献   

基子生物免疫原理的动态入侵检测系统的研究     

付世凤 《株洲师范高等专科学校学报》2007,12(5):41-42,45

文章提出了一种基于生物免疫原理的动态更新入侵检测系统．并特别针对如何在此过程中得到较完备精确的self集介绍了一种动态更新方法，具体是以self集、成熟检测子、记忆检测子三者为研究对象，探讨它们各自在实际运行过程中的更新规则．  相似文献   

明确方向更新理念--关于新时期普通高校成人教育改革与发展的思考     

白林 《淮南师范学院学报》2001,3(1):5-7

21世纪将是一个学习的社会。普通高校的成人高等教育将在高等教育的大众化、大学后继续教育乃至终身教育体系的构建方面，面临许多前所未有机遇和挑战，本文试图从观念到理念的聚合上，探讨新时期如何推动普通高校成人教育的改革与发展。  相似文献   

HMM在说话人识别系统中的实现     

刘云冰  祝彦成  彭静  肖俊  吴传菊 《教育技术导刊》2006,(23)

介绍了隐马尔可夫模型及其主要解决的3个基本问题,以及在说话人识别系统中实现的基本过程,并对256和512码本、文本相关与文本无关进行比对,得出文本相关的识别率更高的结论并分析了其原因。  相似文献   

迪斯尼公司的经营策略探究     

陈剑辉 《湖北广播电视大学学报》2007,27(8):90-91

沃尔特迪斯尼是世界娱乐业的巨头,经过80多年的发展,公司从一个家庭作坊式的小公司,发展成为屹立于世界娱乐行业之颠的跨国公司。公司2006年的营业收入达到343亿美元,在世界500强企业中排名第180名。本文就迪斯尼公司的发展历程、经营特色、管理理念进行讨论。  相似文献   

基于随机小波神经网络的一类随机过程的逼近     

吴曦  康会光 《安阳师范学院学报》2002,(2):1-3

在小波神经网络基础上提出了随机小波神经网络，给出了随机小波神经网络逼近一类随机过程的收敛性的证明。并在此基础上对随机小波神经网络的拓扑结构，学习机理进行了研究，提出了一系列成果。从本质上 ，随机小波神经网络是小波神经网络的推广。  相似文献   

Why braille reading is important and how to study it / Por qué es importante la lectura en braille y cómo estudiarla     

Ana Marcet  María Jiménez 《Cultura y Educación》2016,28(4):811-825

Despite its relevance in theoretical and practical terms, braille reading has received little attention from researchers. Awareness of the pros and cons of the different procedures used to examine braille reading is needed to facilitate the realization of systematic studies and to improve teaching methods in braille reading. This study provides a critical examination of braille reading methods and highlights key points for future studies on tactile reading.  相似文献   

Employment procedures and practices challenge teacher assistants in mainstream schools     

Rosemary Butt 《School Leadership & Management》2016,36(1):63-79

Reliance on teacher assistants (TAs) in mainstream schools to support students with disability and learning difficulties is an increasing trend in Australia. In 2011, over 80,000 TAs were employed costing approximately $3billion per annum [DEEWR. 2012. Job Outlook. Accessed June 2013. http://joboutlook.gov.au/default.aspx]. This paper reports on the employment procedures and practices that affect TAs working in four mainstream schools in Australia. Using data gathered from a qualitative case study conducted over three years, the study found that TAs and teachers have minimal understanding of the TA role. In addition, TAs have limited understanding of employer expectations, education department system policies, the TA career structure and school policies. Existing procedures and practices, both at the education department system level and at the individual school level, exclude TAs from accessing information afforded to other school staff. As a result, TAs work alone and often fail to provide effective support to both students and teachers. It is recommended that school leaders improve employment conditions for TAs at both system and school levels to ensure that students and teachers receive maximum benefit from employing TAs.  相似文献