共查询到20条相似文献，搜索用时 62 毫秒
1.
物理模型是采用理想化手段，通过抽象思维、逻辑推演、类比联想等方法，对各种研究对象和物理过程在一定条件下进行合理处理，抽象出事物的共同属性而建立的，分析和解答物理问题的过程，就是构建物理模型的过程，解题时所谓“明确物理过程进而在头脑中建立一幅清晰的物理图景”，就是指要正确地构建物理模型，现就高中阶段所涉及的物理模型构建及应用作一初步探讨。 相似文献
2.
一、建立物理模型的能力 要求考生在分析题目信息的基础上，抓住主要的物理情景、物理条件和物理关系，把实际问题简化、抽象为恰当的物理模型，通过建立物理模型并应用学过的知识和方法来解决问题。 相似文献
3.
三、注重物理模型和物理习题的关系物理习题都是根据某些物理模型拟定出来的。物理模型是研究物理的一种科学方法,正确的物理模型是在实验和观察的基础上建立起来的,它对物理事实是一 相似文献
4.
迁移物理模型，是指运用已经学到的物理模型解决新的物理问题，通过物理模型的迁移过程可培养学生由低位能力向高位能力转化，通过已知的物理模型建立新的物理模型，再运用新建立的模型解决更加复杂的物理问题，就培养了学生的创造能力，坚持这样做，可以提高解物理题的效率。 相似文献
5.
6.
7.
在中学物理教学中引导学生学会建立物理模型的方法,是物理教学中科学方法教育的一项重要内容。 在物理教学中如何实施物理模型的的教学?建立物理模型的方法主要是什么?我们的观点是:建立物理模型的方法主要有两种——“归纳法”和“演绎法”。 关于归纳法和演绎法,杨振宁教授在《读书教学四 相似文献
8.
9.
理想化的研究方法是物理学中的重要研究方法之一.在物理教学中,一些物理概念、现象、过程、规律和结构都是在一定的物理模型基础上建立起来的,而一些物理习题,也是根据物理模型来构思和设计的,学生能否根据题意建立起正确的物理模型是学生解题过程的关键,物理模型在中学物理教学中有着极其重要的作用. 相似文献
10.
为了形象、简捷地处理物理问题,人们经常把复杂的实际情况转化成一定的容易接受的简单的物理情境,从而形成一定的经验性的规律,即建立物理模型．在分析和解决物理问题时,一般都是在已经掌握的物理模型的启发下找到解决物理问题的思路和方法,因此,在平时教学过程中加强物理模型的建立和应用是十分重要的．下面以等时圆物理模型的建立和应用来阐明如何帮助学生建立物理模型,并加以迁移应用． 相似文献
11.
12.
13.
《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
14.
《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
15.
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
16.
Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
17.
18.
RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
19.
20.
唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献