培养高中生化学提问能力的策略

本文对如何培养高中生化学提问能力的策略进行研究,提出教师可基于提出问题的认知主线,通过基于实验现象提出问题、联系生活实际提出问题、巧设错误诱导提出问题、巧用类比法提出问题、变换题型提出问题、借助同伴提出问题、刨根问底提出问题、解决问题中发现新问题等八种方式,提高学生的化学提问能力。     

平面几何与解析几何情境下中学生提出问题的差异比较研究

随着新一轮基础教育课程改革的实施,提出问题已成为我国数学课程的重要组成部分．对平面几何与解析几何情境下中学生提出问题的差异进行比较得出：①在解析几何情境下平均每个学生提出数学问题的数量要高于平面几何情境下平均每个学生提出数学问题的数量;②在平面几何与解析几何情境下都有学生提出A类问题最多,B类问题次之．C类问题最少,学生所提出的问题水平层次不高．同时在解析几何情境下学生提出A类、c类问题的比例要高于平面几何情境下学生提出A类、C类问题的比例．而提出B类问题的比例又低于平面几何情境下学生提出B类问题的比例;③在平面几何与解析几何情境下学生均已认识到提出问题的重要性,且学生提出问题的途径基本相同．建议：提供学生提出数学问题的机会;教给学生多种提出数学问题的方法;找准不同情境下培养学生提出数学问题能力的侧重点．     

引导学生提出数学问题的几点尝试

学生提出问题是参与学习活动的重要形式之一,提出问题既是一种认知过程,又是一种认知策略,也是一种有效的学习方法.学生提出问题能够增强主体性,培养和发展自主学习的能力,促进数学知识的有效建构,激发创造性思维.在数学教学中,笔者从引导学生在情境中提出问题、在变化中提出问题、在逆反中提出问题、在类比中提出问题、在拓展中提出问题、在改变关键词中提出问题、在运用"what-if-not"策略中提出问题等方面入手,作了一些尝试.     

中国民本思想初探

以民为本是治国之纲,本固则国宁。神农氏炎帝提出"民为邦本",黄帝提出"爱民如子",管仲提出"以百姓为天"、"治国之道必先富民",晏婴提出"以民为本",孟子提出民贵君轻,范仲淹提出忧国忧民,当今重提"以民为本"。     

让学生在化学学习中学会提出问题

给学生示范性提出问题,启发学生提出问题,激励学生提出问题,要求学生提出问题,在这样的培养过程中,使他们质疑能力越来越强,提出问题的质量越来越高。     

中小学生提出数学问题能力评价探究

自20世纪80年代以来,有关数学问题提出的教学研究已逐步引起国内外数学教育界的关注,对学生提出问题能力的评价也进行了一些探索性研究.对学生提出的问题可以从数量和质量两个方面进行评价.对于给定的同一情境,学生提出问题能力的水平可以用5个等级来刻画.学生提出问题的能力具有文化背景的差异.学生提出问题的数量多,或提出问题的速度快,并不能说明其提出问题的质量就好.     

数学问题提出的研究述评

数学问题提出的研究日益受到数学教育界的重视。我们对近些年来的研究成果做一述评，主要涉及：数学问题提出的功能，数学问题提出与数学问题情境之间的关系，数学问题提出与数学问题解决之间的关系，数学问题提出的层次和数学问题提出的培养策略这五个方面。同时，我们呼吁对数学问题提出认知方面的研究和数学问题提出的差异性研究应引起人们的重视。     

例谈探究实验中提出问题有效性的界定

探究实验的一般步骤"提出问题→制定计划→实施计划→得出结论→交流讨论",其中将提出问题放在首位,可见在实验教学中,学生能够通过观察或从现实生活中提出与生物学相关的、可以探究的问题有多么重要。学生能否提出问题,所提出的问题是否有利于探究实验顺利开展,也就是所提出的问题是否属于有效性问题就显得尤为重要。下面我     

“提出问题”教学的常用策略

提出问题是解决问题的基础,但在物理教学中,应当由谁提出问题,是学生,还是教师?对此通常存在两种偏向,有的教师一味要求学生自主提出问题,无论什么问题都指望学生能够自主提出,似乎问题不是由学生提出,就无法培养学生的问题意识一样.相反,有的教师则认为学生根本没有能力提出问题,或生怕学生提出的问题太过分散而导致教学无法收场,所以无论什么问题都由教师提出.应知,研究的问题     

化学教学中培养学生提出问题的能力策略

文章从培养学生提出问题能力的必要性,现行学生提出问题能力差的原因,以及如何培养学生提出问题的能力等三个方面阐述了在化学教学中要培养学生提出问题的能力,提高课堂教学效果。提出了创建生动有趣的情境,使学生产生问题;创造自由和民主的氛围,让学生敢于提问;激发学生提出问题的动力;教给学生提出问题的途径,使学生善于提问的建议。     

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!     

The Reader Response Approach to Teaching of English Literature

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.