五年级英语作文 描写数学老师【一】
??年级数学上册面积换算与改写同步练习1,12.5公顷=(平方米78000平方米=(公顷
2,680平方厘米=(平方分米0.75平方米=(平方分米
3,270平方厘米=(平方分米1.4公顷=(平方米
4,4.5平方米=(平方分米2400平方厘米=(平方分米
5,3平方米=(平方分米4800平方厘米=(平方分米
6,4.08m2=(dm26200平方米=(公顷
7,90平方厘米=( 平方米4.3公顷=( 平方米
8,5平方米8平方分米=( 平方米=( 平方分米
9,108平方米=( 平方分米 9千米=(米=(分米
10,2.25平方米=( 平方厘米0.05时=(分
11,180平方厘米=( 平方分米 800千克=(吨
12,375厘米=( 分米600平方米=(公顷
13,2.6平方分米=( 平方厘米 400平方分米=(平方米
14,5.7公顷=( 平方米
15,3020平方厘米=(平方分米
16,0.45公顷=(平方米680平方厘米=(平方分米
17,5.34平方米=(平方米(平方分米=(平方分米
18,9平方分米50平方厘米=(平方分米
五年级英语作文 描写数学老师【二】
1、用“四舍五入法”求下列各数的近似数。
7936（精确到百位）16493（精确到个位）
学生回答后说说是怎样想的。
2、导入：我们已经回用“四舍五入”法求整数的近似数。今天我们要来学习求小数的近似数。（板题）
五年级英语作文 描写数学老师【三】
作业怎么这么多呀！还让不让我们休息呀！照这样下去，到期末了非变成傻子不可！”同学们正抱怨着呢，数学老师就拿着一叠厚厚的、白白的试卷走进了教室。
“怎么又考试呀？”“不考不考，我们做一张练习。”这数学老师还真有理了，考就考，还狡辩。
同学们极不情愿地拿起了笔，写上了自己的姓名，开始下面漫长而无聊的旅途。
时间一分一秒的过去，一张试卷考好了，我们认为终于可以玩会儿了，可数学老师“阴魂不散”，一直“缠”着我们不放。可想而知，我们是怎样度过那个艰难而又困苦的下午。
吃完晚饭，我们的心情好了很多，也不去计较那几张所谓的练习了，同学们吃的吃，玩的玩。可就在这时，半路***出个“程咬金”，数学老师路见不平一声吼啊，把我们全班同学震住了。
数学老师并没有“奖励”某一个同学，而是拿起粉笔在黑板上写了满满一堆算式，竟然还问我们够不够，不够的话他再抄一点儿，还说“辛苦他一人，幸福全班人”，碰上这个数学老师，真算我三生有幸。
作业还是要做的，聊天也还是要聊的，不能和同学们聊，就和数学老师聊。数学老师人挺幽默的，要是能不“虐待”同学，就再好不过了。
其实自习过得挺快的，不懂的问题请教数学老师，但在数学老师告诉你方法之前，他肯定会说一句话：“这个嘛，我想想……多少简单哪……”
唉，这就是我们的数学老师，这个学期的最后这段时间是注定要接受这魔鬼训练的，我没想过不写作业，但我也没想过会有这么多作业！可我清楚，数学老师是为我们好，希望我们能为学校争光。可是，作业啊，你为什么就那么多呢？
五年级英语作文 描写数学老师【四】
初稿
As is shown above, a leader father is sitting in the chair with a seal grasping in the hand, and a lot of money beside him. He seriously said to his son that there is more to life than just money -it is power. Simple as the picture is, but a profound truth is reveled in the picture.
I surely disagree with father ’s philosophy. As a leader, he shouldn ’t use his power to make money. It is his duty to serve people wholeheartedly, just one person said “with great power comes great responsibility ”. If he stick to his philosophy. I believe that he will spend the rest of his life in prison. What’s worse, he could affect his son ’s philosophy, guiding him in the opposite direction , nothing can be done to reverse the trend itself. The only solution is to change father ’s philosophy. Because of many greedy officials in China, it is time to reverse the trend itself by establishing new policy. As Chinese always has been our confidence that we can change for the better and better.
In my opinion, there is more to to life than just money -it is happiness, nothing is important than happiness. We can live a colorful life in our spare time.
自评
As is shown above, a leader father is sitting in the chair with a seal grasping in the hand, and a lot of money beside him. He seriously said to his son that there is more to life than just money it is power. Simple as the picture is, but a profound truth is reveled in the picture.
I surely disagree with father ’s philosophy. As a leader, he shouldn ’t use his power to make money. It is his duty to serve people wholeheartedly, just one person said “with great power comes great responsibility ”. If he stick to his philosophy. I believe that he will spend the rest of his life in prison. What’s worse, he could affect his son ’s philosophy, guiding him in the opposite direction , nothing can be done to reverse the trend itself. The only solution is to change father ’s philosophy. Because of many greedy officials in China, it is time to reverse the trend itself by establishing new policy. As Chinese always has been our confidence that we can change for the better and better.
In my opinion, there is more to life than just money it is happiness, nothing is important than happiness. We can live a colorful life in our spare time.
评分：23
互评（刘兴顺评）
As is shown above, a leader father is sitting in the chair with a seal grasping in the hand, and a lot of money beside him. He seriously said to his son that there is more to life than just money it is power. Simple as the picture is, but a profound truth is reveled in the picture.
I surely disagree with father ’s philosophy. As a leader, he shouldn ’t use his power to make money. It is his duty to serve people wholeheartedly, just one person said “with great power comes great responsibility ”. If he stick to his philosophy. I believe that he will spend the rest of his life in prison. What’s worse, he could affect his son ’s philosophy, guiding him in the opposite direction , nothing can be done to reverse the trend itself. The only solution is to change father ’s philosophy. Because of many greedy officials in China, it is time to reverse the trend itself by establishing new policy. As Chinese always has been our confidence that we can change for the better and better.
In my opinion, there is more to life than just money -it is happiness, nothing is important than happiness. We can live a colorful life in our spare time.
评分：23
互评（战越评）
As is shown above, a leader father is sitting in the chair with a seal grasping in the hand, and a lot of money beside him. He seriously said to his son that there is more to life than just money it is power. Simple as the picture is, but a profound truth is reveled in the picture.
I surely disagree with father ’s philosophy. As a leader, he shouldn ’t use his power to make money. It is his duty to serve people wholeheartedly, just one person said “with great power comes great responsibility ”. If he stick to his philosophy. I believe that he will spend the rest of his life in prison. What’s worse, he could affect his son ’s philosophy, guiding him in the opposite direction , nothing can be done to reverse the trend itself. The only solution is to change father ’s philosophy. Because of many greedy officials in China, it is time to reverse the trend itself by establishing new policy. As Chinese always has been our confidence that we can change for the better and better.
In my opinion, there is more to life than just money -it is happiness, nothing is important than happiness. We can live a colorful life in our spare time.
评分：
互评（李春霞评）
As is shown above, a leader father is sitting in the chair with a seal grasping in the hand, and a lot of money beside him. He seriously said to his son that there is more to life than just money it is power. Simple as the picture is, but a profound truth is reveled in the picture.
I surely disagree with father ’s philosophy. As a leader, he shouldn ’t use his power to make money. It is his duty to serve people wholeheartedly, just one person said “with great power comes great responsibility ”. If he stick to his philosophy. I believe that he will spend the rest of his life in prison. What’s worse, he could affect his son ’s philosophy, guiding him in the opposite direction , nothing can be done to reverse the trend itself. The only solution is to change father ’s philosophy. Because of many greedy officials in China, it is time to reverse the trend itself by establishing new policy. As Chinese always has been our confidence that we can change for the better and better.
In my opinion, there is more to life than just money -it is happiness, nothing is important than happiness. We can live a colorful life in our spare time.
评分：
五年级英语作文 描写数学老师【五】
1、学习例9。
出示例9：地球和太阳之间的平均距离大约是1.496亿千米。（1）精确到十分位是多少亿千米？（2）精确到百分位是多少亿千米？
（1）讨论第一个问题
依次说说：精确到十分位要保留几位小数？要看小数的哪一位？怎样确定近似数？
明确：
①精确到十分位就是要保留一位小数，只要看百分位上的数。百分位上的“9”大于5，所以向十分位进1。
②得到的1.5是近似数，所以要用连接。
（2）讨论第二个问题
让学生回答后说说是怎么想的，再次强调得数用“≈”连接。
（3）思考讨论：
比较近似数1.5和1.50，哪一个更精确一些？近似数1.50末尾的“0”能去掉吗？为什么？
引导学生结合例题中取近似数的过程说说体会。
明确：
1.5是精确到十分位的结果，而1.50是精确到百分位的结果。所以1.50要比1.5更精确一些，正因为如此，所以近似数1.50末尾的“0”是不能去掉的。
2、“试一试”
学生独立完成，集***流，说说是怎么想的。
3、归纳方法：
问：通过刚才的学习，你觉得怎样求一个小数的近似数？要注意些什么？
*明确：
（1）先要弄清楚保留几位小数；（2）根据要求确定看哪一位上的数；（3）用“四舍五入”的方法求得结果。
*强调：要正确使用“≈”。
三、巩固练习：
1、练一练/1，独立完成。
强调：把2.962精确到十分位时，不能丢掉结果末尾的“0”。
2、练一练/2，出示
（1）指导学生审题。明确题目的两个要求。先改写再求近似数。
（2）学生在书上完成。指名板演。
（3）集***流，分别说说改写的`方法和求似数的方法。
想想：为什么前面用“=”，后面用“≈”。
（4）把改写后的小数和求出的近似数分别放入原来的语言环境中读一读，比一比，再说说自己的感受，体会用“万”作单位的小数及其近似数的应用价值。
3、练习七/4。
出示，指名板演，其余独立完成。
集***流，注意把9.9674分别保留一位小数、两位小数的结果，根据情况适当加以指导。
4、练习七/6
（1）出示题目，学生独立完成左边一组后交流，说说怎样比的，要提醒大家注意什么。
（2）独立完成右边一组。集***流。
5、练习七/7。
（1）提醒学生看清要求，独立完成前两项。指名板演。
（2）集***流，注意格式和单位。
6、练习七/8
提醒学生看清要求。指导完成总产量的改写，并保留一位小数。注意格式。
五年级英语作文 描写数学老师【六】
通过学习，你有什么收获？想对大家说些什么？
