论中学数学课堂教学中的交互模型

数学课堂教学中交互是指数学课堂教学中师生之间、学生之间相互交流、沟通、对话．理解和互相作用的活动。课堂教学交互能够准确反映出课堂教学中师生之间、学生之间实现事实、观念、价值、感情和态度传播的过程。在数学课堂教学中可采用“传承型、设计型、开拓型和交流型”等交互模型完成交互行为。     

数学课堂教学交互情境及其创设

数学课堂教学交互情境是指在实施数学课堂教学交互时师生共同营造的一种情感和数学活动氛围。它具有学科性、问题性、生活性、情感性、预设性、生成性等特征。创设数学课堂教学交互情境既要创设和谐的人际关系情境,又要创设恰当的数学问题情境。     

论数学教师组织课堂教学交互能力的提升

学生参与数学课堂教学交互不理想的一个重要原因,是数学教师没有给学生提供良好的交互平台,20数学教师教学交互能力不强的焦虑是自身素质不足的一个主要方面,也是数学课堂“假交互”现象比较严重的重要原因．可见,数学课堂教学交互的有效实施,数学教师起着关键的作用．教师是数学课堂教学交互的组织者、引导者和参与者,教师组织数学课堂教学交互的能力如何,直接影响着教学交互的效果．因此,深入研究数学教师组织教学交互能力的内涵及其提升策略,对化解数学教师的困难并提高数学课堂教学交互的效果具有现实意义和理论价值．本文主要从创设交互情境的能力、疏导交互冲突的能力、捕捉交互机会的能力3个方面人手,探讨如何提升数学教师组织教学交互的能力．     

数学课堂教学交互冲突及其利用

数学课堂教学交互冲突是指在数学课堂教学交互过程中,教师与学生或者学生与学生之间,因为教学程序、数学知识、数学活动目标、数学思维方式、数学价值观念和个人需要等方面出现相互矛盾而产生并被感知到的不一致或相互干扰。它可以分为实质性交互冲突和人际关系交互冲突两类。数学课堂教学交互冲突对数学课堂教学会产生积极和消极两方面的影响,发挥好积极作用,疏导好消极影响,数学课堂教学交互才能够有序进行。     

创设有效情境,优化小学数学教学

在小学数学教学中,合理创设教学情境,有利于学生更加清晰地理解课本讲解内容,激发学生的好奇心,能够促进学生创造性思维的发展,吸引学生积极参与课堂教学,提高数学课堂教学效率,如何在小学课堂教学中合理创设课堂情境,是当前小学数学教师在课堂教学中不断探索和完善的课堂教学措施之一,结合课堂教学实践,谈谈在小学课堂教学中如何创设课堂教学情境提高小学课堂4教学效率。     

让多媒体点亮数学课堂

多媒体技术在数学课堂上的运用,对于学生理解和掌握知识点以及开拓思维颇有益处,能让数学课绽放光彩。本文从趣味情境构建、直观情境创设和探究情境搭建等三个方面,针对当前小学课堂教学的情况,提出了多媒体优化小学数学课堂教学的策略。     

数学课堂需要什么样的教学情境

创设教学情境的目的一方面是激发学生学习数学的兴趣和欲望,另一方而让学生能从身边的事例或者感兴趣的问题入手,在研究问题的过程中学习数学、理解数学和应用数学.数学课堂教学需要创设什么样的教学情境?笔者认为具备以下几点要求的情境才是数学课堂教学所需要的情境.     

初中数学“垂直”教学实践与思考

“垂直”是初中数学中很重要的一节内容,教学过程中应当在具体情境的设置下丰富学生对两条直线互相垂直的感性认识,并会用符号表示两条直线互相垂直．同时,应当让学生掌握垂线的画法,理解垂线的性质,体会点到直线的距离的意义．本文将具体谈谈初中数学“垂直”教学实践与思考,从三个方面分别探析“垂直”在课堂教学过程中的逐层展开．     

创设教学情境之我见

数学教学是数学活动的教学．是师生之间、学生之间的交往互动与共同发展的过程。《数学课程标准（实验稿）》指出：“数学教学．要紧密联系学生的生活实际．从学生的生活经验和已有知识出发，创设生动有趣的情境。引导学生开展观察、操作、猜想、推理、交流等活动。”同时倡导小学数学教学．让低年级学生在生动具体的情境中学习数学．让中高年级学生在现实情境中体验和理解数学。由此可见。教学情境的创设对新课程理念主导下的课堂教学而言．显得非常重要。本就如何创设教学情境谈几点做法与体会。     

空间情境演示在集合概念教学中的应用

世间诸多事物互相之间都存在着一定的空间关系,在数学中将这种关系用各种代名词来做称谓,并由此发散出一个个数学科目中的知识系统,让数学课堂变得丰富起来。本文就以数学中一些有关集合的概念为切人点,谈谈如何通过空间情境演示,让学生理解概念的精髓。     

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.