共查询到20条相似文献，搜索用时 375 毫秒
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《中国现代教育装备》2008,(2):170-170
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
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刘荣春 《中国基础教育研究》2009,5(3)
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
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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
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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
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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
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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
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《华夏少年(简快作文 )》2014,(2)
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
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LC电磁振荡的形成过程是高中物理电磁振荡教学的重点和难点,要使学生较好地了解电磁振荡的过程,就必须做好电磁振荡的演示实验。传统的演示方法是用演示电表来演示。该方法要用到电感量很大的电感线圈,既不易得到又很笨重。此外,电表指针的惯性摆动也容易引起误解。而用示波器来演示该实验就能较直观地显示电磁振荡的过程,只是现有的该类仪器要么演示线路过于复杂,要么不能同时演示阻尼振荡和无阻尼振荡,实验操作也较麻烦。为解决这一问题,笔者设计和制作了一款电磁振荡演示教具,配合大屏幕示波器来演示,取得了较好的演示效果。下面介绍该款教具的制作方法和演示方法。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
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
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
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
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献