Q. & A. With Liping Ma - 未名空间MITBBS历史存档

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Q. & A. With Liping Ma

Q. & A. With Liping Ma# Education - 教育学

d*s2013-12-18 08:12

1 楼

除了麋鹿到处都有...
除了我们这里下雪下的超大...
除了我们这里的外国银特别逗...
除了这个地方的吃食和美国明明一样但是贵了不少...
之外！
都是特别特别的挺好的...
好多人都问我，在加拿大最好的地方是什么。
肯定不是枫叶国的国旗，别想，这个在我们这里不是说这里人不爱国啊，这里人只有小
孩子会喜欢画国旗，而且照着手指头画，小孩子可纯真了。
我们这里最好的就是各种下雪的时候的便民政策。小到铲雪奖励机制，我想有在加拿大
生活的人都知道，这个机制我觉得大多都是给小孩子用来挣零花钱的，政府给一部分挺
好的。
然后夏天还有一些奇妙的庆祝活动会给一些免费的发放的吃喝。都挺好的。
我说这些就是想说。还有谁在加拿大呢！我一个人在蒙特利尔呆的太久了。我想跟大家
出去玩。有没有组织接收我啊！！！！寂寞孤单冷的我跪求一个蒙特利尔的小伙伴团体
接收我这个没有男友，同事之间也逗比不知道如何传达感情的英语超差的我...
羡慕同住的那个小哥儿有个滑板协会，哭晕...

s*c2013-12-18 08:12

2 楼

想问一下，如果找不到工作，应该去CCAC继续F1还是变成F2?
F2找到工作转成H1b的可能性大吗？和F1找一样吗？
谢谢大家

s*h2013-12-18 08:12

3 楼

牙龈不好很久了。
经常吃东西就发现有血。咬口香蕉都有。刷牙也常发生。
早上起来，发现2处出血点，用舌头一顶就有血。
我没牙医保险。
在美国这里有什么好的针对性的非处方药？
如果从国内可以带的话，又有什么药？
谢谢。

C*U2013-12-18 08:12

4 楼

在五六月份，有人知道吗？

b*e2013-12-18 08:12

5 楼

看到晚秋和余则成说话吃醋那段
你叫我姐和我是一家
你叫我嫂子和他是一家
其实我和他才是一家

w*s2013-12-18 08:12

6 楼

【以下文字转载自 Linux 讨论区】
发信人: wds (净洗前尘，从头再来), 信区: Linux
标题: how to avoid security holes for perl CGI code using checkbox ?
发信站: BBS 未名空间站 (Thu Apr 18 19:01:05 2013, 美东)
Don't know how to describe this clearly,
i have a simple perl CGI code, running with lighttpd.
it has checkbox, if it's set, when you click "submit".
it will trigger my code in the background,
`set_my_value.exe 1`.
if no check that checkbox,
`set_my_value.exe 0`.
Now when i run Rapid7 nexpose, which is a security check application,
it can call my "set_my_value" directly.
So even i didn't check/uncheck the checkbox.
It's setting the values.
Seems lighttpd doesn't support perl taint mode (someone correct me if not
the case), i don't know what to do now.
Any help appreciated.
Thanks !

s*12013-12-18 08:12

7 楼

学search engine哪种语言最有用？
Java, C++的其中一种，还是两种都要？
另外，学search engine需要先修database或者network的课程吗？
现有的search engine一般没有语义搜索，还要先学natural language processing以及
machine learning吗？
谢谢！

i*d2013-12-18 08:12

8 楼

常见的是transitive dependency。不会引入什么anomaly。比如product dimension。
有谁能举一些partial dependency的例子么？很少看到。可能引入什么坏处？
多谢！

k*g2013-12-18 08:12

9 楼

打算申请09fall的会计硕士。本人以前在国内读的是中文，没有工作经验，更没有任何
与会计方面相关的学习、工作背景。打算找以前的两个老师以及辅导员推荐，但不知道
这个推荐信应该如何下手写，侧重于哪个方面呢？
我想版上肯定有同学和我情况差不多的，当时你们的推荐信是怎么写的呢？
谢谢大家了

a*g2013-12-18 08:12

10 楼

December 18, 2013
By VIKAS BAJAJ
http://www.nytimes.com/2013/12/18/opinion/q-a-with-liping-ma.ht
Liping Ma, a former teacher and principal in China, has written extensively
about the differences between how the United States and China teach math to
elementary school students. After earning a doctorate in curriculum and
teacher education from Stanford University, she worked as a senior scholar
at the Carnegie Foundation for the Advancement of Teaching. In 1999, she
published “Knowing and Teaching Elementary Mathematics,” an influential
book that argues elementary school teachers need a better grounding in
arithmetic and math in order to teach them effectively to their students.
She currently works as an independent researcher. Dr. Ma spoke recently with
Vikas Bajaj of The New York Times editorial board about her research and
why Chinese and other Asian students score well above their American
counterparts on international math tests.
Your research compares how the United States and China teach elementary math
. Can you briefly explain the biggest differences between the two countries?
In my first work, published in 1999, I found that Chinese teachers who had
much less education than our American teachers showed more profound
understanding of the elementary math they were teaching.
I noticed that Chinese math education at the elementary level has a core
subject structure. They focus on one subject; I called it school arithmetic.
That ongoing core subject picks up other things [like fractions, geometry
and simple equations]. While in the States, we teach many, many things [like
number operations, algebra, problem solving and geometry, taught
independently of one another in a way that makes it hard for teachers and
students to connect them]. We lack this kind of core that goes through five,
six years of elementary school. That’s why, in my opinion, we in the
States don’t teach elementary math in an efficient way.
One interesting observation in your work is that the two countries once used
similar approaches to teach math. And that the United States changed how it
teaches math, while the Chinese kept and built on that approach.
The turning point in the States was in 1959, after Russia launched Sputnik.
In the beginning, it was all about advanced math. But this new structure
allowed people to make changes and allowed people to take stuff out and put
stuff in [the math curriculum]. What I criticize is the structure, that
structure made the content unstable. Whenever the policy makers changed, the
content changed. So, we were not able to accumulate teaching experience.
How important are these differences in explaining why students in China and
other East Asian countries tend to have higher scores on international math
tests than American students?
There are many explanations. Students [in those countries] work hard, the
parents have higher expectations. But I myself will say that content plays a
big role. The subject was not developed by the Chinese, not even the
Japanese. The core theory of school arithmetic was created by scholars,
including American math scholars, in the second half of the 19th century. We
created it, but we abandoned it. While on the other side, they [East Asian
countries] just adopted it and improved the teaching approaches.
There is a common perception in the United States that education systems in
Asia rely heavily on rote memorization. How true is this perception?
Of course, rote memorization exists in Asia. But, I think, it’s not only
rote memorization. By those tests we can clearly see that they do not only
memorize. It’s overly simplistic to say they just memorize it, and it
blocks our research and understanding of why they are doing well.
The other common perception is that Chinese and East Asian students are less
happy and under greater stress to do well on exams.
Again, that is another issue I wish was not oversimplified. I am in my early
60s, when I was an elementary school student back in China, I felt I was
very happy. Hard work doesn’t make you unhappy, as long as you learn
meaningful things. You will even feel good when you work hard. But currently
in China, there is an over-emphasis on tests. That does make students
unhappy.
In a recent article, you express concern that recent changes China has made
in its math curriculum could weaken its approach and make it more like the
United States. Can you explain what China has done and why you are concerned
about it?
Since 2000, they published a new Chinese standard. They kind of copied a lot
of our concepts. Mainly, my concern is that they conceptually gave up their
structure. They said we will not use arithmetic as the core subject, we
will break it into several standards. That makes me feel that they will
follow the structure that will weaken the content. However, Chinese schools
and textbook publishers have so far kept the arithmetic structure. But they
are not allowed to say that. It’s a very weird situation.
How much has changed in the United States in our approach toward elementary
math since you first started studying it?
We have been trying in this country to teach less. We have noticed that we
have taught too many things – our curriculum is one-mile wide and one-inch
deep. We have tried to get focus. That is a big change in this country.
However, we have not noticed that arithmetic is a core subject. In the
States, now we want to teach algebra, algebraic thinking in elementary
school. I personally think it might not work.
Are you arguing that children shouldn’t be taught algebra or that it should
not be taught in elementary schools?
I am concerned about algebra at the very beginning of elementary school,
even kindergarten. We will not teach real algebra. We will call this algebra
and we will say, ‘Oh, we are teaching algebra, we are teaching advanced
things.’ Actually, that will not lead to what we want.
There is a misunderstanding of arithmetic in this country. Many people think
arithmetic equals computational skills, and that’s it. Arithmetic has a
theoretical core and there is intellectual depth to it. That arithmetic can
serve as a good foundation for students to learn algebra or other advanced
math.
This interview has been edited and condensed.

S*M2013-12-18 08:12

11 楼

我觉得你这种情况
最好是洗牙一次

【在 s****h 的大作中提到】

: 牙龈不好很久了。
: 经常吃东西就发现有血。咬口香蕉都有。刷牙也常发生。
: 早上起来，发现2处出血点，用舌头一顶就有血。
: 我没牙医保险。
: 在美国这里有什么好的针对性的非处方药？
: 如果从国内可以带的话，又有什么药？
: 谢谢。

P*l2013-12-18 08:12

12 楼

俺觉得翠平吃醋已经对老余的痴情演的很不错

【在 b***e 的大作中提到】

: 看到晚秋和余则成说话吃醋那段
: 你叫我姐和我是一家
: 你叫我嫂子和他是一家
: 其实我和他才是一家

R*n2013-12-18 08:12

13 楼

上次不是回答你了这些问题了吗？

s*o2013-12-18 08:12

14 楼

这是面试的QUESTIONS吗?

z*02013-12-18 08:12

15 楼

一个老师写你学习勤奋，刻苦努力，帮助老师完成过一些工作，令人满意。
一个老师写你沟通能力强，表达能力好，情商高，在学习中很有团队合作精神，举例曾
经在一个小组作业中发挥出色，取得了好成绩。
辅导员写你在班里各项活动中突出，有领导才能，又踏实肯干，做各种事情认真负责。
每个有一个侧重点，涵盖你的学习态度、学习动力、学习能力、团队意识、沟通能力、
责任心。每个人都举一个小例子。虽然你学的专业不同，但是今后工作对人的要求却是
相通的。还有的学校在推荐信方面有特殊的要求，比如要推荐人描述你的某个方面等等
，反正就是按照要求准备。另外，推荐信和你的PS要有比较明确的分工又能够互相印证
。这些材料是个整体，好好规划一下。
好运！

L*k2013-12-18 08:12

16 楼

We used her book as textbook when I was in graduated school at NYU.

s*h2013-12-18 08:12

17 楼

谢谢。
据说牙龈出血不让洗.
而是让你先用点消炎止血后再洗。
也许我的信息有误？

v*y2013-12-18 08:12

18 楼

en. haha

【在 b***e 的大作中提到】

: 看到晚秋和余则成说话吃醋那段
: 你叫我姐和我是一家
: 你叫我嫂子和他是一家
: 其实我和他才是一家

s*12013-12-18 08:12

19 楼

感谢您上次的答复! 您和其他朋友们的回复将所有可能相关的所有课程都列举出来. 我
不知道
是否所有这些课程都不可缺少?
能否请您回答得具体一些? 我必须提早注册和准备.
Java, C++只要其中一种即可，还是两种都要？
另外，学search engine需要先修Oracle SQL,MS Access,network protocol的课程吗？
现有的search engine一般没有语义搜索，还要先学natural language processing以及
machine learning吗？
不胜感谢!

【在 R*******n 的大作中提到】

: 上次不是回答你了这些问题了吗？

i*d2013-12-18 08:12

20 楼

No.

【在 s**********o 的大作中提到】

: 这是面试的QUESTIONS吗?

k*g2013-12-18 08:12

21 楼

3x very much

【在 z*****0 的大作中提到】

: 一个老师写你学习勤奋，刻苦努力，帮助老师完成过一些工作，令人满意。
: 一个老师写你沟通能力强，表达能力好，情商高，在学习中很有团队合作精神，举例曾
: 经在一个小组作业中发挥出色，取得了好成绩。
: 辅导员写你在班里各项活动中突出，有领导才能，又踏实肯干，做各种事情认真负责。
: 每个有一个侧重点，涵盖你的学习态度、学习动力、学习能力、团队意识、沟通能力、
: 责任心。每个人都举一个小例子。虽然你学的专业不同，但是今后工作对人的要求却是
: 相通的。还有的学校在推荐信方面有特殊的要求，比如要推荐人描述你的某个方面等等
: ，反正就是按照要求准备。另外，推荐信和你的PS要有比较明确的分工又能够互相印证
: 。这些材料是个整体，好好规划一下。
: 好运！

t*a2013-12-18 08:12

22 楼

盐水漱口

a*i2013-12-18 08:12

23 楼

你这问题就问的不对。什么叫学search engine？你是要自己实现一个search engine？
还是你要想找search engine方面的工作？前者你用自己熟悉的语言就行，后者看你要
找的是哪家公司啦。

l*u2013-12-18 08:12

24 楼

谢谢，正好需要~

N*D2013-12-18 08:12

25 楼

matrix computation, the most useful one.

【在 s********1 的大作中提到】

: 学search engine哪种语言最有用？
: Java, C++的其中一种，还是两种都要？
: 另外，学search engine需要先修database或者network的课程吗？
: 现有的search engine一般没有语义搜索，还要先学natural language processing以及
: machine learning吗？
: 谢谢！

l*u2013-12-18 08:12

26 楼

美女，请问推荐信你让中国的老师寄过来还是怎么操作啊？谢谢，人在美国这个搞起来
比较烦。

【在 k**********g 的大作中提到】

: 打算申请09fall的会计硕士。本人以前在国内读的是中文，没有工作经验，更没有任何
: 与会计方面相关的学习、工作背景。打算找以前的两个老师以及辅导员推荐，但不知道
: 这个推荐信应该如何下手写，侧重于哪个方面呢？
: 我想版上肯定有同学和我情况差不多的，当时你们的推荐信是怎么写的呢？
: 谢谢大家了

l*o2013-12-18 08:12

27 楼

C++, Java任选一种。
The course is called large scale data mining.

【在 s********1 的大作中提到】