利用类比联想寻找和∑nk=1K2的方法

本文通过寻找求和∑nk=1K^2的方法，说明了类比、联想思维对解一个新问题的重要性，旨在启发学生解题时，要善于运用类比、联想，拓宽思路，激活思维，从而提高解题能力。     

开放思维 死题活解

近年来,在中学数学的考题中,出现一种非开放题,但用传统的封闭式题型的解题:疗法去求解,又极易走进“死胡同”,变为“死题”.因此它的解题方法比较灵活. 1.类比联想思维类比思维在数学知识延伸拓广过程中常借助于比较、联想用作启发诱导以寻求思维的变     

运用化归策略解题例析

化归即转化,是一种很重要的解题策略和思维方式,本文通过数例说明化归策略在数学解题中常见的形式及运用。一、类比转化化生为熟类比的基础是观察,其关键在于类比、联想、转化。     

浅谈初中数学中的类比思想

本文结合初中数学教学中的内容,过新课教学中的类比、类比解题思路、变式类比联想、类比推理等四个方面阐述教师在数学教学中,如何渗透和运用类比思想,实现思维迁移,培养学生反思、探究、创新的思维能力.     

高中物理两类问题的解

一、例谈物理规律的类比 联想类比魁根据两个研究对象或两个系统在某些属性上类似，从而推想出它们在其他属性也相似的一种思维方法．它是一种典型的创造性思维方式，也是科学研究普遍采用的方法之一．同样，在物理解题中，通过对规律的联想类比，往往能启迪思维、开阔思路，达到简捷明快、出奇制胜的效果．     

例谈构造思想在中学解题中的应用

运用构造法解题,能使解题方法更富于活力,同时,对培养学生的类比、联想、创造性思维都有独到作用。本文通过中学数学中几个常见的模型,予以论之。     

例谈物理规律的类比应用

联想类比是根据两个研究对象或两个系统在某些属性上类似,从而推想出它们在其他属性也相似的一种思维方法.它是一种典型的创造性思维方式,也是科学研究普遍采用的方法之一.同样,在物理解题中,通过对规律的联想类比,往往能启迪思维、开阔思路,达到简捷明快、出奇制胜的效果.     

例谈物理规律的类比应用

联想类比是根据两个研究对象或两个系统在某些属性上类似,从而推想出它们在其他属性也相似的一种思维方法.它是一种典型的创造性思维方式,也是科学研究普遍采用的方法之一.同样,在物理解题中,通过对规律的联想类比,往往能启迪思维、开阔思路,达到简捷明快、出奇制胜的效果.     

联想 类比 三角代换

联想是人类思维活动中最神奇的一部分,它与创造性思维活动有着千丝万缕的联系.其中把所要解决的问题与已有知识和经验进行类比是联想的一种基本形式.三角代换是以联想为切入点的,是数学解题中常用的方法.本文就如何根据题给形式和条件联想到三角形式,并进行类比而后产生三角代换,以及代换后的角的范围的确定等方面加以剖析.     

它山之石可以攻玉——例谈物理规律的类比应用

联想类比是根据两个研究对象或两个系统在某些属性上类似，从而推想出它们在其他属性也相似的一种思维方法。它是一种典型的创造性思维方式，也是科学研究普遍采用的方法之一。同样，在物理解题中，通过对规律的联想类比，往往能启迪思维、开阔思路，达到简捷明快、出奇制胜的效果。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

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?     

Western and Eastern culture differences in commercial field

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.     

只要努力,不要后悔

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.     

浅谈移民问题

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.     

Sister Carrie, an Adherent of Desires

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.     

Improvement of one-cycle controller by use of proportional integral differential controller

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

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.