共查询到20条相似文献，搜索用时 78 毫秒
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教学目标是教师对教学结果的一种预设。作为构成教学诸多要素中的一个至关重要的因素，它既是教学的出发点，又是教学的归宿点。因此，教师在教学实践中对课时教学目标的制定是否恰当，教学过程中目标的达成度如何，将直接决定一堂课的教学效果，进而决定教学质量。在此，本人拟从目前课堂教学中的一些现象分析出发，就小学数学教学中怎样理解、把握和处理三维目标的有关问题，谈一点个人的看法。 相似文献
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【案例】当我和着掌声走进教室的时候,这意味着六(6)班的孩子在过最后一个儿童节了。“孩子们,老师送给你们一件特殊的礼物。”我慢慢地打开一个纸箱,神秘地说,“这个礼物,每个人只要在脖子上挂一天,它就归你所有了。”“耶!”孩子们一听喜出望外。“不过,咱们可要‘礼尚往来’!”我故意卖了一个关子,“一天以后,我希望也能收到你们的‘礼物’———每个人在纸上谈一谈保护它的感受,好吗?”“一言为定!”待我把礼物送到每个孩子的手上,始料未及的孩子们个个目瞪口呆,人人惊诧不已,原来领到的“礼物”竟然是生鸡蛋。一天之后,我如期收到了全… 相似文献
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赵伶俐 《西南师范大学学报(人文社会科学版)》2004,30(4):89-94
教学技术是教学科学和教学艺术的中端或中介、桥梁。历经十年多项相关课题的研究．我们从中外古典和现当代经典教学理论以及前沿科学理论中发现了共同含有的“点一结构”特质，结合各级各类各科教学的实际教学行为，提炼出了具有普适通用性的“视点结构教学”理论．并对这一理论的教学行为亦即教学技术转化，以及“视点结构教学技术系统”的构成进而“审美化视点结构教学”等，进行了精心研究。对于各级各类各科教学设计和教学操作常态模式的建立．在追求教学基本效率之上实现教学创新，教师教学行为的系统诊断、评价、指导、培训等等方面．都具有切实可行的价值。 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,(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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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 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
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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GUO Bao-feng Xiao Da-wei 《重庆大学学报(英文版)》2005,4(3):129-133
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