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化学图表是化学表述的重要方式,也是发展学生化学表述能力重要工具。文章结合教学实际,探讨了以化学图表为裁体,寻求发展初中生化学表述能力的途径与方法。 相似文献
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在中学素质教育中,绿色化学教育占据着十分重要的地位,因此如何将绿色化学理念应用于高中化学教学是一个值得探讨的重要问题。基于此,分析了绿色化学的内涵及渗透绿色化学理念的重要性,并探讨了基于绿色化学理念的教学策略。 相似文献
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化学复习教学是高三化学教学的重要内容,它关系到学生在高考中能否取得优异的成绩.本文简述了高三化学高效复习应当遵循的重要原则,探讨了高三化学高效复习的四个具体策略. 相似文献
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谈探究性学习活动在化学教学中的实施应用 总被引：1，自引：1，他引：0
义务教育阶段化学课程中的科学探究是学生积极主动地获取化学知识、认识和解决化学问题的重要实践活动,是一种重要的学习方式,也是义务教育阶段化学课程的重要内容,对发展学生的科学素养具有不可替代的作用。本文对探究性学习在化学教学中的应用进行了分析。 相似文献
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化学实验是中学化学教学的一个重要组成部分 ,它对于化学现象、化学概念的理解起着重要的作用 .在化学实验教学中 ,对几个因为缺少药品或仪器的实验进行了改进 . 相似文献
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化学学科特点和化学课程目标决定了实验教学是化学教学的重要形式,是实现化学课程目标的教学手段之一.而实验室是开展实验教学的主要场所和阵地,是重要的课程资源,也是实施素质教育的重要平台.因此,搞好化学实验室管理,开发化学实验室课程资源,发挥化学实验室功能就成为了一个新课题.下面,笔者结合自身工作经历,谈谈对化学实验室管理的体会和认识. 相似文献
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王冬姣 《中国科教创新导刊》2013,(14):224-224
随着和谐社会建设口号的提出,高校化学教学理念也出现了新的发展,绿色教学作为化学教育的重要内容开始在高校化学课堂中展现出来。如何培养大学生绿色化学意识是提高大学生和谐社会发展理念的重要基础和前提,本文在此背景下,以绿色化学教育理念为中心内容,分析了现阶段高校化学理念教育。 相似文献
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化学是一门以实验为基础的科学,实验是人们研究化学的一种重要手段,也是学习化学的重要途径。根据化学学科的特点,重视实验在化学教学中的重要作用,就能很好的提高学生学习化学的兴趣,从而全面提高教学质量。本文从三个方面论述了加强化学实验教学,培养学生学习化学兴趣的做法和体会。 相似文献
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钦州湾表层海水温度盐度及pH值时空变化 总被引：2，自引：0，他引：2
根据2009年春夏秋冬4个季节调查资料,分析钦州湾表层海水温度、盐度及pH值的季节变化和分布特征。结果表明：钦州湾海水平均温度春季20．4℃,夏季30．1℃,秋季16．0℃,冬季14．6℃,变化特征与气温的季节变化相同,空间分布为夏秋季河口区的水温都略高于湾口区,而春冬季则相反。海水平均盐度春季20．067,夏季17．975,秋季23．864,冬季23．660,表现为秋季〉冬季〉春季〉夏季,各季节空间分布总体表现为河口区低,湾口区高的趋势。海水pH平均值春季7．82,夏季8．11,秋季8．01,冬季8．10,全年空间分布高值区均出现在大风江口外海域。钦州湾海水比较适宜大蚝、对虾、文蛤等广温广盐性品种的海水养殖。 相似文献
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20世纪90年代我国区域高等教育公平与效率变化的实证研究 总被引：5，自引：0，他引：5
公平和效率是各国高等教育发展中存在的重要问题之一。一般认为公平和效率在理论上和宏观上是可以统一的，并能够得到协调发展和可持续发展。然而，从微观和实践层面上分析却往往会发现存在一种矛盾现象，似乎是一个不可调和的两难问题。我国省(市)高等教育发展的公平与效率就是当前急需关注的一个典型的、具体的问题。通过对反映我国1999年和2000年各省(市)高等教育和经济发展状况的多指标进行聚类、相关等统计分析，考察了我国20世纪90年代高等教育区域公平和效率的发展变化特征，并通过对二者量化关系的揭示，对我国省(市)20世纪90年代高等教育公平与效率问题进行了实证分析和评估，并对我国未来省(市)高等教育的进一步发展提出了相应的对策和建议。 相似文献
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Marguerita McGovern 《Pastoral Care in Education》2013,31(3):235-252
The aim and objective of this study is to examine and compare how schools in Galway, Republic of Ireland and Derry in the North of Ireland (cities located within two independent jurisdictions in Ireland) manage and respond to bereavement. To carry out a survey of schools, the ‘Loss in Schools’ questionnaire is considered the most suitable tool. The questionnaire, which contains 10 questions designed to unearth pertinent issues including the needs and concerns of schools, had previously been administered in studies in Hull. Sixty questionnaires were administered in both Galway and Derry, with a return of 38 and 35, respectively. This study illuminates important aspects of the topic. The schools in both Galway and Derry rate bereavement (and parental separation) as highly important in terms of priorities. In terms of policy, some of the respondents in both study sites report that loss is included in their school's policy documents but not formally included in the curriculum. A designated staff member (who would speak to the pupil experiencing the death of a family member or significant other) is evident in 37% of Derry schools and 23% of Galway schools. Some members of staff in both study sites have attended training in bereavement, although the courses are relatively short term. Schools request assistance from other agencies outside the formal schools arena in times of need. In Galway the psychology services are most commonly consulted, while in Derry the Western Education and Library Board Bereavement Counselling teams and Cruse Bereavement Care are identified as additional resources from which help is sought. This paper outlines recommendations on schools' training needs in the area of child bereavement and the request for support to help further develop and formalise school policies. 相似文献
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Utilizing 2068 individuals in 60 organizations in the U.S. and Italy, this study (a) examines the overall relationship between trust in top management and immediate supervisor and overall estimates of satisfaction and perceived organizational effectiveness, (b) compares the amount of variance in satisfaction and effectiveness that can be explained by trust in top management to the amount of variance explained by trust in immediate supervisor, and (c) clarifies the role of information receiving as a predictor of trust in top management and immediate supervisor. Results of a canonical correlation analysis indicated that the canonical equation explained 49% of the variance in the linear composites (Canonical R = .69, p < .001). Trust in top management was more strongly associated with satisfaction and effectiveness than was trust in immediate supervisor. Tzvo separate multiple regression analyses indicated that after controlling for geographic location of company and type of industry, information received about job and organizational issues uniquely explained 26% of the variance in trust in top management and 13% of the variance in trust in immediate supervisor. 相似文献
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This article draws on data emerging from an evaluation of behaviour support strategies in secondary schools in an education authority in Scotland. The authors all work at the University of Glasgow. Jean Kane has research and teaching interests in the area of special educational needs; she offers consultancy to local authorities in the development of inclusive policies and practices in schools. Dr George Head has research and teaching interests in the area of social, emotional and behavioural difficulties and social inclusion; he is also an experienced teacher. Both Jean Kane and George Head are lecturers in the Faculty of Education. Nicola Cogan is a researcher at the Strathclyde Centre for Disability Research and has a background as a research psychologist in the health sector.
In Scotland, the growth of behaviour support provision is closely related to broader policy on social inclusion. It is argued in this article that new models of behaviour support can be developed in the light of previous and related experience in the development of inclusive support systems in schools. The authors present a typology of behaviour support, drawing upon their evaluation of provision, and discuss the characteristics of the types of support that emerge. Using data from exclusion statistics, pupil case studies and interviews with teachers, managers, pupils and parents, Jean Kane, George Head and Nicola Cogan explore the implications of their work for future developments in support for pupils who present difficult behaviours. 相似文献
In Scotland, the growth of behaviour support provision is closely related to broader policy on social inclusion. It is argued in this article that new models of behaviour support can be developed in the light of previous and related experience in the development of inclusive support systems in schools. The authors present a typology of behaviour support, drawing upon their evaluation of provision, and discuss the characteristics of the types of support that emerge. Using data from exclusion statistics, pupil case studies and interviews with teachers, managers, pupils and parents, Jean Kane, George Head and Nicola Cogan explore the implications of their work for future developments in support for pupils who present difficult behaviours. 相似文献
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曹炜 《苏州教育学院学报》2013,(6):33-38
自18世纪中叶到20世纪中叶,北京话旁称代词系统在句法、语义上呈现出了比较明显的发展变化,这种发展变化在三个时期的三部典型的北京话文献《红楼梦》《儿女英雄传》《正红旗下》中得到了充分的反映。就旁称代词系统而言,历时嬗变的发生轨迹是：由18世纪中叶的＂别人、人家、别人家、他人、旁人＂阵容切换到了19世纪中叶的＂人家、别人、他人、旁人＂阵容,并最终切换到了20纪中叶的＂别人、人家＂阵容,期间的此消彼长、删汰整合昭然。就旁称代词个体而言,历时嬗变的发生轨迹是：1.＂别人＂由18世纪的炙热到19世纪的没落,再到20世纪的重新走强;2＂.人家＂由18世纪的初露锋芒到19世纪的首度大大超越＂别人＂而一枝独秀,再到20世纪与＂别人＂的平分天下;3＂.他人＂这个曾经在相当长的时段内的旁称代词家族的宠儿由18世纪的颓势已现到19世纪的英雄末路,直至20世纪的难觅踪影;4.不温不火一路走来的＂旁人＂由18世纪的衰落到19世纪的走向没落,直至20世纪的淡出我们的视线;5.产生于元代的＂别人家＂由18世纪的衰弱到19世纪的没落,直至20世纪的只留存在部分方言中而在北京话中彻底消亡。 相似文献
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Patricia Heitmann Martin Hecht Julia Schwanewedel Stefan Schipolowski 《International Journal of Science Education》2013,35(18):3148-3170
The ability to build arguments is a crucial skill and a central educational goal in all school subjects including science as it enables students to formulate reasoned opinions and thus to cope with the increasing complexity of knowledge. In the present cross-sectional study, we examined the domain-specificity of argumentative writing in science by comparing it with a rather general type of argumentation as promoted in first-language education and with formal reasoning to gain insight into different forms of argumentation on theoretical and empirical levels. Using a paper-and-pencil test, we analyzed written argumentations and the reasoning abilities of 3,274 Grade-10 students in German secondary schools. Correlation and multiple regression analyses as well as a qualitative analysis of students' answers to a subset of tasks in the domains of science and first-language education were conducted. Results showed moderate relations between argumentation in science, argumentation in first-language education, and reasoning. Half of the variance in argumentation in science was explained by individual differences in argumentation in first-language education and reasoning. Furthermore, the examination of written arguments revealed differences, for example, in students' weighing of pros and cons. We assume that the familiarity of the underlying scientific information may play an essential role in the argumentation process and posit that it needs to be investigated in more detail. Overall, the study indicates that investigating the argumentational abilities of learners in first-language education and reasoning abilities can help to shed light on the domain-specificity of argumentation in science. 相似文献
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均衡发展是发展教育的本质要求。教育体制在很大程度上直接规定了教育体系存在、运行和发展的基本方式,制约着教育资源的开发、配置以及教育各项社会功能的实现。世界各国教育存在方式和发展模式上的种种不同都相对集中地反映在其教育体制上。文章从体制层面来探析发展中国家的教育变革,力图为发展中国家教育变革的公平与均衡提供体制性保障,促进发展中国家的教育发展。 相似文献
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卢卓群 《沙洋师范高等专科学校学报》2005,6(2):55-58
用普通话写作的港台作家作品中所用的熟语受到港台话的影响而发生变异。本讨论共同语的熟语在港台话中的语形变异和语义变异，提出并讨论其变异的方式，以求其沟通普通话和港台话对同义或同形熟语的相互理解。 相似文献