课上,我首先和学生一起回忆长度单位、面积单位、质量单位之间的进率,为本节课的学习打下基础。接下来由易到难,先尝试由低级单位的单名数改写成高级单位的单名数的题目,引导学生归纳低级单位的单名数改写成高级单位的单名数的方法是除以进率。然后通过尝试由高级单位的单名数改写成低级单位的单名数的例子.归纳总结高级单位的单名数改写成低级单位的单名数的方法是乘进率。
通过练习,学生掌握了单名数之间的改写方法后,尝试单名数与复名数之间的改写,引导学生在做这类题时,要看清楚是什么名数改写成什么名数,如果是复名数改写成高级单位的单名数,复名数中高级单位前面的数应写在单名数的整数部分,只需要把复名数中低级单位进行改写;如果是高级单位的单名数改写成复名数,要把原小数分成两部分:整数部分写在复名数的高级单位前,小数部分根据各单位间的进率进行改写。这样给学生一个清淅的解题思路,学生解题的正确率自然会提高。
为了让学生熟练掌握,我用一句话简单概括:“高改低乘进率,小数点向右移,低改高除以进率,小数点向左移”。
这堂课,我做得比较好的地方如下:
1、让学生在独立思考、同桌交流的过程中初步感知了名数改写的方法,让学生始终处于学习的主体地位,集中发展学生的思维,让学生自主探索、合作交流中探究、学习新知,从而关注学生学习的整个过程。
2、对于名数的概念,教材中没有明确的介绍,也不是这节课的重点,在学生猜测的基础上,我直接告诉学生:“一个数和单位名称合起来就是一个名数”,再在比较中了解单名数和复名数,学生对名数的'理解就比较清晰。这样学生很快的就知道了什么是“名数、单名数和复名数”。而单名数的改写我则采用学生先思考尝试后交流,在反馈中进行个别指导的方法,规范语言,归纳方法。这样让每一个孩子都学有所获,让不同的孩子有不同的收获。
3、在整个教学的过程中,尊重学生的思考,对有不同意见的学生,采用鼓励性的语言,让学生充分发表自己的看法,给每个孩子以展示自己的机会,充分调动了学生学习的积极性。
不足之处及改进措施:
1、在教学中也发现,学生虽然对单名数之间的改写方法理解掌握得比较好(高级单位化低级单位乘进率,低级单位化高级单位除以进率),但由于部分学生对于单位之间的进率不熟悉,特别是面积单位之间的进率掌握的不好,致使一些学生在改写时出错。在课前让学生整理长度单位、面积单位、质量单位之间的进率时,应该给学生一定的时间熟悉这些进率,以便提高解题的正确率。
2、个别学生移动小数点不够熟练,解题速度比较慢,尤其是把高级单位的单名数改成复名数或把复名数改成高级单位的单名数,学生出错较多。应在新课前复习一下有关这方面的整数练习题,以便为学生学习新知识做好铺垫。
目前,学校存在少数学生考试作弊现象。
某英文杂志社拟对此现象向中学生征文,标题是“My Opinion on Cheating in Examinations”。
请根据下列提示用英语写一篇征文稿。
内容要点如下:
注意:1.短文必须包括所有内容要点,可适当发挥;
2.短文标题与开头已为你写好,不计入总词数;
3.词数:100左右。
4.参考词汇:作弊cheat(v.)
My Opinion on Cheating in Examinations
It is known to us all that some students cheat in examinations at school.____________
One possible version
My Opinion on Cheating in Examinations
It is known to us all that some students cheat in examinations at school.
As students, we often take examinations at school, but sometimes we have too many examinations which are too difficult for us. On the other hand, some of us are lazy and don’t work hard at their lessons. So when taking examinations, they sometimes cheat in order to get better results to please their parents and teachers.
In my opinion, it is wrong to cheat in examinations because it breaks the rules of schools. We students should be honest and try to get good results by studying hard instead of cheating in examinations. What’s more, we should improve our study methods and get well prepared for examinations.
小数和复名数的教学是在前面的名数改写的基础上进一步的深入,名数的改写一方面使学生进一步记熟单位间的进率,另一方面也教学给学生进行名数间改写的般方法。名数的改写对于学生的来讲是一个难点,因为名数的改写正确的.前提是学生对各单位进率熟悉,如何让学生熟记各单位进率呢?我的做法是帮助先归纳整理各单位进率,让学生把各单位及进率抄在自己的课本上,让学生利用早读时间和课前几分钟读单位进率及默写单位进率,让学生深记忆。
在小数和复名数的教学中,我先让学生先整理各单位及进率,让学生在学习前有一个知识回顾的过程,然后引导学生在做小数和复名数改写时如:3.4平方千米=()平方千米()米,先根据题目的要求,如看清楚是什么名数改写成什么名数、是大单位转换成小单位或小单位转换成大单位,然后,再把小数分开两部分处理:整数部分照写,小数部再根据各单位及其进率进行量的转化、把小数点移动,实现小数和复名数之间的改写。这样给学生一个清淅的解题思路,学生解题的正确率自然得到保证。
总之,在做小数和复名数的转换教学中必须要让学生熟记各单位及进率,基础打好了,做事自然事半功倍。
This is my first week in ** Senior Middle School.Everything here is new for me.Our school is an old school but it`s very beautiful.I have 50 new classmates in my class.They`re all very excellent, I think, and I felt a little sad.Because I`m too common.But come to think of it,it`s a very good thing.I believe I can also be very excellent if I study with such excellent classmates.I didn`t know why Ms *** chose me to be the committee of study.But I know it`s a good chance for me to raise my ability.All I can do is do my best in the future.I am sure that Ms *** and my classmates can help me when I do something wrong. Because they`re all very kind.It`s a pleasure to work and study with them.I`m really very happy.I`m not an outstanding student in this class,but I can do the same thing like others.I believe I won`t make anyone disappointed.
暑假即将来临。
你班同学讨论了假期计划,提出了不同看法。
请根据提示写一篇有关讨论的英语短文,并谈谈你的看法。
注意:1.短文必须写在答题卡的指定区域,词数80——120(不含已写好部分)。
2.短文必须包括表中所列要点,可根据内容分段表达。
3.可适当增加细节,以使行文连贯。
4.参考词汇:眼界——horizon(或view)
One possible version:
The summer holiday is coming. Our class have had a discussion about what to do during the holiday. Some are in favor of staying at home. They think it’s both convenient and comfortable. What’s more, they can save money for other purposes. But they will lose the chance of getting to know the outside world.
However, others prefer to go out for traveling since it can increase their knowledge and broaden their horizons. But they will spend more money and meet some difficulties while traveling.
In my opinion, it would be much better to stay at home, for I can do what I like, such as reading books, watching TV, and helping my parents with the housework.
Dear Dad,
Long time no see, I do miss you. Well, let me tell you something about my life here.To tell the truth, i live a normal life just as anywhere i can live.(我过着一个在任何地方都普通的生活 My life is revolved on work and work.(我的生活除了学习还是学习Frankly,i feel tired sometimes(老实说,我有时候觉得很累.But i see, studying is the whole life to students like me.(但是我知道,学习是像我这样的学生的全部 So no matter how difficult, i will do my utmost .所以不管多艰难,我都会尽自己最大的努力。
Best wishes for you .
When I was a freshman in college I watched the film Gua Sha Treatment for the first time, now I am a junior student and I come back to review the movie from a multicultural aspect, I have many different feelings after watching the film again.
At the beginning of the film, XuDatong is given an award and later he delivers a speech. What makes me impressed most is in his speech he says “one day I will become one of you, a truly successful American, today this award proved that America is a true land of opportunity and I am the living proof of that.” At that moment Xu thinks he has realized his American Dream totally with his lovingly wife and adorable son. However, I think it is ironical that to make a speech like that and I assume it is made on purpose to hind a clue for the story's development. How many non—American people have such a beautiful American dream? One of my classmate studies in American now and before he went aboard he told me his American dream is he can stand at the top of the New York. To be honest, I also dream that one day I can get the Green Card living there happily and successfully maybe working at the Wall Street. When Xu gets the award he thinks he entirely melted in the melting pot neglecting the multicultural obstruct, later the plot goes against the way he thinks. And later Quinlan asked Xu'why you be the scapegoat of your father?' Xu answers 'because he is Chinese.' Then maybe Xu knows that there is always a wide gap between Chinese and American cultures.
The second scene is Xu hit his son Denis because Denis hit the son of xu's boss, at the middle of the film xu tells his boss that he hit his own son is only to show his respect to his boss John Quinlan, that time Quinlan feels puzzled “what a Chinese logic”,yes, American can never understand such a logic full of Chinese characteristic, because they respect everyone including the children, they won't beat a child to please the boss, and there is no such a conception of degree between employee and employer, they feel everyone is equal, which is quite different from china.
Connected to the second scene, the third difference I want to analyze is the care for the children. In America, people pay more attention to the right of children which can be seen from the law—leaving children alone at home is illegal, while in China it is so common that almost everyone may experience such loneliness. And Children Welfare Agency does work in America which shows the importance Americans attach to children's right. What's more, I remember a line 'No one won the case, especially the child.' In my opinion, it also manifests the universal concern from the American public to the children.
The fourth aspect is following the procedure, in the film, more than there times, the people focus on the rule, the law, the procedure. At the Christmas Eve Xu wants to return back to his home pretending as a Santa Claus, what a pity, the security recognizes him and persuades 'you are always a good tenement, never causes troubles for me.' And another scene is at the end of the film , the judge says 'I have to follow the procedure.' However, in China people always have to ask for a favor to do something, and later you have to pay back the favor,for myself, I prefer the American style, strict to the procedure.
The fifth and the last point is the humors, Quinlan says 'you can't fall, your health security is the company paid.' 'Datong, welcome home, maybe next time, you can come from the front door.' 'dady, why you come from the window' ' because we don't have a chimney.' I really adore this distinguished American humor, especially in dangerous situations, which is quite rare in China.
That's my whole reaction to Gua Sha Treatment.
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