例谈中考开放性试题的类型及解法

作为考查考生创新能力的题目,开放性问题主要有条件开放型、结论开放型、策略开放型、综合开放型等四种类型.这里撷取近年部分典型试题进行分析、解答、评注,旨在帮助同学们掌握解决这类问题的思路、方法和技巧. 一、条件开放型     

浅谈高中数学教学与开放性题型

开放性问题是一种综合性强、内涵丰富,其结论与条件之间跨度大,思考范围宽,目标不明确,难入手,易错、易失分,教学难度大的问题.主要有结论开放性、条件开放型、结论与条件都开放型、存在性开放型、分类讨论开放型、信息迁移开放型等.     

多媒体网络在数学教学中的应用

我们两年来在利用学校多媒体网络进行现代化教育技术的应用方面、作了一些有益的探索。一、我们在课堂上采用了新型的教学方法所谓开放型教学、开放型试题、开放型教案、开放型练习,不同于传统的开放型数学问题。在传统的开放型数学问题的理解上,大多把一些数学问题求解的多样性、答案的不定性作为开放型的问题。而在这里的开放型教学,我们借鉴国家改革开放的思路,把教学的教案、教学过程、教学方法、数学思想、国际数学问题等都在Internet国际互联网上开放,使学校的围墙、教室的大小、时空的限制成为不能制约的因素。我们在教学设计上,以…     

开放型问题的解法

开放型问题有利于培养学生的思维能力和创新能力,作者就三种类型的开放型问题作简单归纳。     

初中数学开放性问题解法例谈

随着新课程标准的深入实施，近年来的中考数学试题中出现了越来越多的开放性问题。所谓开放性数学问题，是指那些条件不完备，结论不确定的数学问题。开放性问题重在开发思维，促进创新，提高数学素养。在中考试题中常见的开放性问题主要有条件开放型、结论开放型、组合开放型和策略开放型等几种，本文试就其解题思路举例予以说明，供参考。     

第七讲 专题复习精讲 开放探索型问题专题精讲

专题说明探索型问题和开放型问题的设置常常是一套中考试卷中的亮点,也是衡量试题是否具备创新意识的必备条件之一.中考试卷中往往会出现一两道探索型和开放型的题目.另外探索型和开放型问题对于培养同学们创新精神、提高实践能力也起着重要的作用.探索型问题和开放型问题之间往往没有一条明显的界限,它们二者均具有题目的条件不完备或者结论不     

浅谈“开放型”题在物理复习中的应用

开放型题就是没有完备的条件，没有固定的方法．而且答案也不是唯一的。开放型题按创设问题情景的不同，可分为：应用开放型题、策略开放型题、变式开放型题。解答此类问题时，必须对研究对象可能的物理状态，可能发生的物理过程或现象进行判断、讨论，才能得出最终结果。[第一段]     

高中数学开放题

数学开放题是指条件不完备或结论不确定，但被认为是最富有教育价值的数学问题．它一般具有下列—些特征：问题的答案是不确定的；没有现成的解题模式；在寻求解答的解题过程中可促进主体认知结构的改进．常见数学开放题可分为：条件开放型、结论开放型、策略开放型、情境开放型和综合开放型．     

§7.9开放探索型问题专题精讲

探索型问题和开放型问题的设置常常是一套中考试卷中的亮点．也是衡量试题是否具备创新意识的必备条件之一．中考试卷中往往会出现一两道探索型和开放型的题目．另外探索型和开放型问题对于培养同学们创新精神、提高实践能力也起着重要的作用．     

数学“开放型问题”解题的一些思路

开放型问题也称探索性问题,它与传统题型不同,开放型问题可能条件不够完备,结论也可不一定唯一确定,具有开放性,解题的过程具有探索性,对培养学生独立解决问题的能力,自觉参与科学发现有重要的意义。本文就“开放型问题”解题的一些思路进行了一些探讨。     

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?     

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…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.