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1.
牛学青 《成才之路》2009,(20):47-47
本文从演示实验的演示目标、演示策略、演示过程中教师指导用语等方面对演示实验的教学设计进行了探讨。  相似文献   

2.
后现代学习理论对物理演示实验的启示   总被引:1,自引:0,他引:1  
在后现代学习理论的基础上,提出我国物理演示实验教学应该情境化、活动化、探究化;演示实验设计应该注重校本化;淡化演示实验主体之争,发挥演示实验培育功能;注重演示实验的生成性,突出演示实验的开放性,实现演示实验教育功能.  相似文献   

3.
随着信息技术的发展和普及,使用PPT进行大屏幕演示已经广泛应用于课堂教学、学术报告与交流、培训和商业展示等各个领域。作为Microsoft Office Power Point2003的新增内容,演示者视图功能选项提供了对幻灯片演示文稿的更多控制。爱普生的无线投影机推出了无线多屏幕演示技术。结合演示者视图功能和爱普生多屏幕演示技术,可以实现无线演示双屏PPT,可为演示者提供便捷,高效的演示方式。  相似文献   

4.
演示实验的教学是教学艺术的一部分,出色的讲述不会妨碍演示的进行,巧妙地演示也不是一言不发,演示实验的教学应是讲述与演示有机的、巧妙的结合。现谈谈演示技巧。  相似文献   

5.
试论物理演示实验教学的二次开发   总被引:1,自引:0,他引:1  
本文主要通过实例分析,研究物理演示实验二次开发的途径和方法,提出演示实验目的、演示方式、演示器材和演示手段的二次开发,以期对中学物理演示实验教学的研究起到抛砖引玉作用,提高物理教学的有效性。  相似文献   

6.
演示实验是初中生物教学的重要组成部分。由于许多教师对演示实验的教学不重视及采取的方法不恰当,导致演示实验的教学效果不佳。提高教师实验技能,增加演示实验,让学生参与演示实验,可有效提升初中生物演示实验的教学效果。  相似文献   

7.
初中物理演示实验包括实体演示实验和虚拟演示实验两类。教师在初中物理教学中开展演示实验,不仅能够降低物理实验成本,弥补传统实验教学的不足,还有助于激发学生的物理探究兴趣。在开展演示实验时,教师要本着以问题为主线的基本原则,借助问题促进学生思考、探究,同时还要注重现场演示与多媒体辅助视频演示的结合,全面优化演示实验的效果。  相似文献   

8.
张振 《考试周刊》2023,(7):130-133
演示实验是初中物理学科教学的关键内容组成,其教学效果直接关系到学生物理概念理解掌握、物理学科学习方式培养、物理知识认知能力成长等诸多方面,教学重要程度不容忽视。初中物理教师必须提高对演示实验教学重视,从整合演示实验资源、创设演示实验环境、优化演示实验组织、创新演示实验形式等角度入手,构建高质量物理演示教学体系,提高物理演示实验教学实效.  相似文献   

9.
演示教学法是信息技术课堂上的常用教学方法。但是,如果运用不当,就会适得其反。由一次公开课中引发思考,并结合教学实际,得出提高演示教学法实效性的几条途径:积极创设演示情境;合理设置演示容量;正确把握演示时机;灵活运用演示形式。  相似文献   

10.
化学演示实验是中学化学教学中的重要一环,应该注意以下几点:一是增加学生手演示的机会,二是增加演示实验的探索性,三是增加演示实验的创新性,四是增加演示实验的趣味性。  相似文献   

11.
This essay mainly studies the linguistic features of News English on stylistics.The study is made mainly on three aspects of News English.They are lexical features.sentence features and grammar features of News English.Through the study we find that News English,as a distinctive and new language.has its own lin-guistic features in words, sentences and grammar.  相似文献   

12.
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator's Garden. Translating building data to the Virtual Reality Modeling Language (VRML) is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching.  相似文献   

13.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

14.
风的曲线     
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.  相似文献   

15.
西方传统哲学对人的思考严格遵循主—客的思维模式,大力弘扬主体性原则,崇尚“人类中心主义”。而自西方现当代人文思潮产生以来,对人的理解发生了转向,弘扬非理性,倡导人与自然的融合。海德格尔就是这种思潮的代表。文章从本体论和认识论两个维度对海氏“人(此在)是澄明”这一哲学命题作出了新的解释。  相似文献   

16.
Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.  相似文献   

17.
李婷 《天中学刊》2011,26(3):30-34
民主是个好东西,然而,民主并不是解决当前所有问题的万能钥匙。在中国政治民主化的进程中,需要正确解读民主与集中,民主、自由与纪律,民主与党的领导,民主与选举,民主与决策,民主与效率,民主与民众文化素质这几对重要关系,深刻剖析民主的生命力及弱点,澄清国民在民主认识上的误区,才能清晰定位目前民主政治发展的目标。  相似文献   

18.
《型世言》中"虚撮脚"、"撇呆"、"找截"、"间壁"、"隔夜"、"锅边秀"等六条没被解释或解释不确的词语,其义当为:1."虚撮脚"的本义是"空拉架势,作出要干某事的样子",引申义是"敷衍,虚于应付"和"阿谀奉承,假奉承";2."撇呆"即"发呆";3."找截"即"简捷,利索";4."间壁"即"隔壁"之意;5."隔夜"意为"昨天","前一天"或"前一天晚上";6."锅边秀"也做"锅边转",本义指厨房中烧火做饭的人,后引申指"粗使丫头"、"女孩"等。  相似文献   

19.
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…  相似文献   

20.
What should be learned? How should it be organized for teaching? These seemingly simple questions are deceivingly political. Curriculum theorists are preoccupied with the politics of the first question at the expense of the realpolitik of the second. Instructional designers are preoccupied with the realpolitik of the second question at the expense of the politics of the first. I argue that conceptual distances between curriculum theory and instructional design are based on divisions of labour established during the 1960s. After decades of neglect, curriculum theorists, and specifically critical theorists, appear clueless when it comes to curriculum design and the realpolitik of their causes. When it comes to the realpolitik of practice their political causes are formless. Quite the opposite of critical theorists, instructional theorists nearly mastered the realpolitik of form but have no political causes. I argue that, to contradict the status quo of C&;I, curriculum theorists will have to dirty their hands with the realpolitik of form and instructional designers will have to clutter their heads with theory.  相似文献   

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