a******o 发帖数: 113 | 1 actually most lawyers don't really bother to jump for ib as they move along
their career, but it's arguably true that one doesn't really need to go to
law school just for working in ib afterwards
degrees are always just tools for opening the door to somewhere so you gotta
make use of it in a cost-effective way. that's it.
PHD
political |
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m*******5 发帖数: 1 | 2 Job Posting
At Beijing National Day School
Beijing National Day School was established in 1952 as a tribute to the
National Day of China, which commemorates the 1949 founding of the
People’s Republic of China. Today it is one of leading academic
Secondary Schools in China.
BNDS currently offers a quality education for students in grades 7 to
12. Now it is a national school with international and global vision.
Its International Department is authorized to enroll both international
and Chinese s... 阅读全帖 |
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发帖数: 1 | 3 There are TWO PhD positions (research assistantships) available in the area
of Electronics at FICS Research, University of Florida. Highly motivated and
diligent students with a solid track record should contact Prof. Navid
Asadi ([email protected]/* */) or Prof. Mark Tehranipoor ([email protected]/* */) with
a copy of their CV and a summary of relevant research experiences.
Our research focuses on Hardwaresecurity and in particular on counterfeit
detection and prevention, reverse an... 阅读全帖 |
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d****t 发帖数: 372 | 4 这个教授本人是个jew, 却是个反华先锋! 大家应该反击它才对!
http://www.arthurhu.com/index/matloff.htm
Norman Matloff, The Hatchet Man of Asian Immigration
(Arthur Hu's Norm Matloff fan site) | New additions
Arthur Hu's Norman Matloff page
http://www.arthurhu.com/index/matloff.htm
2 Quick Intros to Matloff / Immigration Issues
Asian Focus April 1998: The Chinese Must Go! Matloff's Myth of a Programmer
Shortage
George Nichol's Other Matloff Fan Site (easier to navigate than this one!)
Where Matloff's been Published
How to C... 阅读全帖 |
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F***Q 发帖数: 6599 | 5
a
my
more
it makes sense, but I personally would trade the mild troubleness with a
significantly better suction power. it feels so good to hear the powerful
airflow. I do have a dedicated small closet to hide the hoses and
attachments.
your comment regarding market age is arguable. It is not popular because new
houses are getting smaller and tighter, and people don't have the luxury to
enjoy it. But premier market is always there, no matter when.
FYI, the best Dyson is 275 air watts, my 25yr+ C... 阅读全帖 |
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I******s 发帖数: 223 | 6 从法理上补充解释一下楼上,这个12个月的自住协议也是很arguable的,你签字的时候
确实想在这个房子里住一年以上,但是几个月后情况改变了,就一定不能搬走吗?不是
的。所以只要买新房的贷款没问题,Citi是不会让你把原来的贷款改成投资房贷款的。
这个协议本意其实是想限制那些买的时候就想把房子当投资房但以自住房来贷款的人。 |
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y****i 发帖数: 17878 | 7 Chase is arguably the nicest bank in terms of bonuses
to make you feel better, it is not a hard pull for opening a Chase checking
account |
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y****i 发帖数: 17878 | 8 what did I say? Chase is arguably THE best in terms of giving out bonuses
could not remember how much I made off all kinds of Chase deals/promotions
the banker was surprised to see a laundry list of coupons in my Chase
account when I opened the money market account few months ago //hehe |
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y****i 发帖数: 17878 | 9 VR is arguably the lowest of low-hanging fruit in the world of manufactured
spending
so easy, so elegant, a caveman can do it |
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y****i 发帖数: 17878 | 10 sigh, got the notice in the mail today as well
arguably the best $5 you can spend ... |
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y****i 发帖数: 1265 | 11 原文链接http://www.flyertea.com/thread-259258-1-1.html
电梯
第一弹:高端卡(主贴)
第二弹:普通消费卡
第三弹:类别消费卡
第四弹:最佳双卡组合
第五弹:“抽屉卡片”
第六弹:免费附加权益
第七弹:免境外手续费
由于置顶的精华帖已经过时很久了,我其实很早就想总结一下美国信用卡。很多人知道
我有个英文的网站/博客(完全没有广告和referral链接),但我在这里还是想用中文
简洁的总结一下。首先声明一下,这个帖子不打算讨论signup bonus,因为这个变化太
快了。如果你的消费不是很大而且很多联名信用卡都没有的话,我建议你在提高信用分
数的基础上每隔半年申请若干张新卡(最好每个银行限制一张),然后你的消费基本上
都在完成最低消费上面,那就不用考虑日常消费都需要用神马卡来最大化收益了。如果
你消费比较大,需要几张卡来最大化收益,或者是你需要一些卡的特殊权益,那这个帖
子会是非常好的讨论贴,我希望这个贴是一个互动的平台。
第一弹:高端卡(年费300刀以上)
Amex Platinum:年费450刀,加三张Platinum Card副卡只需再... 阅读全帖 |
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y****i 发帖数: 1265 | 12 原文链接http://www.flyertea.com/thread-259258-1-1.html
电梯
第一弹:高端卡(主贴)
第二弹:普通消费卡
第三弹:类别消费卡
第四弹:最佳双卡组合
第五弹:“抽屉卡片”
第六弹:免费附加权益
第七弹:免境外手续费
由于置顶的精华帖已经过时很久了,我其实很早就想总结一下美国信用卡。很多人知道
我有个英文的网站/博客(完全没有广告和referral链接),但我在这里还是想用中文
简洁的总结一下。首先声明一下,这个帖子不打算讨论signup bonus,因为这个变化太
快了。如果你的消费不是很大而且很多联名信用卡都没有的话,我建议你在提高信用分
数的基础上每隔半年申请若干张新卡(最好每个银行限制一张),然后你的消费基本上
都在完成最低消费上面,那就不用考虑日常消费都需要用神马卡来最大化收益了。如果
你消费比较大,需要几张卡来最大化收益,或者是你需要一些卡的特殊权益,那这个帖
子会是非常好的讨论贴,我希望这个贴是一个互动的平台。
第一弹:高端卡(年费300刀以上)
Amex Platinum:年费450刀,加三张Platinum Card副卡只需再... 阅读全帖 |
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h****s 发帖数: 16779 | 13 你就在你家门口的court告。
只要你是在家预订交钱的,他们不上庭是他们的事情,法庭一样可以管:
http://www.nolo.com/legal-encyclopedia/free-books/small-claims-book/chapter9-2.html
Example 3: You own a small graphic design company in Maine and negotiate a
contract over the phone and via email with a clothing designer in New York
to design business cards and signs for a new store that the clothing
designer plans to open in Maine. You complete the work on time but the
designer refuses to pay you. Can you sue the designer in Maine's small
claims... 阅读全帖 |
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h********e 发帖数: 88 | 14 一个自闭孩子妈妈的亲身经历和感受(上)our journey
我孩子不到三岁,15个月因为发育滞后开始接受EI治疗,18个月时EI机构严重怀疑自闭
,排队几个月后21个月在美国top5的权威儿童医院拿到经典自闭的诊断之后一直接受强
度很大的各种训练。。我不常来逛这个坛子,因为我家孩子让我担心的地方,和这里家
长们通常讨论的东西,根本搭不上边。。大家在讨论怎么推娃,上什么兴趣班的时候,
我担忧的是怎么以后能够让娃生活自理,自立而不拖累这个社会,怎么学会和人交流(
说话都是其次的),奢侈点的想法是,怎么主流化,怎么能够自己有一个somewhat
meaningful的生活,父母离开人世的时候,也能让孩子可以有尊严的活着。我们这样家
庭的种种challenge,不是常人能够理解的,我也从没有奢望过普通父母能体会我们的
痛苦。。。但是看到了最近的热贴,有些id对我们这些可怜的家庭们的各种不太善意的
猜测,非常震惊。当然,也同时看到很多general ed, gifted ed的家长们的同情和爱
心,和让人温暖感动的话,在这里也想替我们这些家庭,谢谢你们的支持。
我的一个一直以来的想法,是增加A... 阅读全帖 |
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g****e 发帖数: 1829 | 16 The answer to your questions is NO. A perfectly healthy baby can have thick
NT measurement.
You need to understand why NT thickness is being looked at. It's *
statistically* shown that there is a correlation between thicker NT and
chromosome disorder. However, there is NO causality that says thicker NT
must indicate chromosome disorder. In fact, 95% of fetus with thicker NT are
completely healthy. Even for the other 5%, most of them only have small
problems.
A lot of people panic when they saw a... 阅读全帖 |
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L********r 发帖数: 758 | 17 学天体物理痛苦啊,观察设计实验都靠天吃饭。当爱好不错,当职业这心理素质要求太
高了。万一几个重要天象错过了,这一辈子就过去了。等我有空再读吧。
against the blackness of infinity? Religion and science have many answers to
these and like questions, answers that sometimes meet but more often
diverge.
Vietnamese-born astrophysicist Trinh explore how Buddhism and modern science
address life's big questions. Among the matters they touch on, sometimes
fleetingly and sometimes in depth, are the illusory nature of phenomena, the
guiding intelligence of nature, and the searc... 阅读全帖 |
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c**i 发帖数: 6973 | 18 I have no sympathy for people like you.
You deserve punishment, which God will mete out in due course (see next, for
example).
(1) I myself was abused--both physically and emotionally--when I was a boy
in Taiwan. By my parents. After I grew up, I have turned my back on them. I
have no idea if they are alive or not. Go to hell, I say.
(2) What is wrong with Chinese culture, into which Taiwanese culture may
arguably be subsumed?
subsume (vt): "include, incorporate"
YAN FAN ZHU gained notoriety in ... 阅读全帖 |
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f**r 发帖数: 865 | 19 Life is not (all about) competition! :-)
转一段Yishan Wong的说法 (http://www.quora.com/Education/What-are-some-tips-and-tricks-for-high-school):
Don't compete, create. This one is a key mindset thing for your
whole life. The American school system (and much of work life)
is designed to place you into zero-sum situations where you're
competing against other people for limited amounts of resources
or recognition. You're often competing to see who's the best,
and there can only be one (or a few) of th... 阅读全帖 |
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w******e 发帖数: 40 | 20 Thank you so much for the info. This is not a 'KENG'. The hospital is
arguably one of the best children hospitals in China. Maybe we are stupid to
have our son take this kind of test. Thanks all of you for invaluable
information and suggestions. This is also a lesson for us.
a |
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d*g 发帖数: 16592 | 21 我闺女从1岁1个月起去daycare,先是在美国上了半年多daycare,去的时候花了2天就
适应了,第一天哭了10分钟,第二天哭了5分钟,第三天第四天都是我还没出门就不哭
了。在园期间一直玩得很happy,加上我们家的当时已经potty trained了,虽然还不能
自己上厕所,但是可以和老师表示要potty了。老师说1岁多孩子像我闺女那样能
discipline自己的很少,是个守纪律的宝宝。
然后回国上了1年半daycare,上海私立,有外教,规格还挺高的那种,大多数时候很
happy,虽然曾经被老师绑在椅子上,变成了不守纪律的坏典型。我闺女在班里很小,
国内因为很多孩子祖父母还有保姆带,不舍得很小送daycare,一般都是2岁多3岁后才
送,我们不到2岁算很早的。然后不到3岁就从托班毕业跟着上小班了(就是preschool
了,一般都是3岁后去,有的孩子近4岁),立刻自己吃饭和自己上厕所的压力就来了,
丫头晚上睡觉做梦大叫:我会提裤子了,我会提裤子了,其实当时她还不会,白天也貌
似不想学,不在乎,其实小人心理还是peer pressure蛮大的。能看出来孩子不是那么
happy,... 阅读全帖 |
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h********e 发帖数: 88 | 22 Ten Things Every Child with Autism Wishes You Knew
by Ellen Notbohm
Some days it seems the only predictable thing about it is the
unpredictability. The only consistent attribute -- the inconsistency. There
is little argument on any level but that autism is baffling, even to those
who spend their lives around it. The child who lives with autism may look "
normal" but his behavior can be perplexing and downright difficult.
Autism was once thought an "incurable" disorder, but that notion is
crumbli... 阅读全帖 |
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c***x 发帖数: 628 | 23 GC2 is much much better than those uprights. Even GB1 is arguably better
than U1/3/5 simply because it is a grand piano. Grand pianos have superior
action design than uprights. |
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x*****i 发帖数: 1329 | 24 【 以下文字转载自 LeisureTime 讨论区 】
发信人: wh (wh), 信区: LeisureTime
标 题: BBC评选的11本最佳儿童书
发信站: BBS 未名空间站 (Tue Apr 7 01:06:34 2015, 美东)
The 11 greatest children’s books
What are the greatest children’s books ever? In search of a collective
critical assessment, BBC Culture’s Jane Ciabattari polled dozens of critics
around the world, including NPR’s Maureen Corrigan; Nicolette Jones,
children’s books editor of the Sunday Times; Nicole Lamy of the Boston
Globe; Time magazine's books editor Lev Grossman; Danie... 阅读全帖 |
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a*****g 发帖数: 19398 | 25 http://www.huffingtonpost.com/david-gosset/weiqi-versus-chess_b
Using a universally relevant metaphor, Zbigniew Brzezinski, former National
Security Adviser to US president Jimmy Carter, wrote in The Grand Chessboard
(1997): "Eurasia is the chessboard on which the struggle for global primacy
continues to be played." China's New Silk Road strategy certainly
integrates the importance of Eurasia but it also neutralizes the US pivot to
Asia by enveloping it in a move which is broader both in space a... 阅读全帖 |
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t*******r 发帖数: 22634 | 26 对于一场考试而言,我个人认为永远是 deduction 更有效,因为是 (1) 考试的 close
-ended problem 的 nature,(2) 考试是事前给定 limited scope 并且 testable,(3
) 考试是测试 acquired knowledge 而不是 acquiring knowledge。
但另一方面,我觉得 induction 的能力是个 life skill。虽然不能被考试所测试,但
对大部分人 life quality 而言,induction 最少最少也能让 life 更轻松些。
或者另一个角度,induction 是人类几万年来跟 mother nature 混的时候进化出来的
。光 deduction 对 mother nature 不太有效。另外电脑目前还不能 induction。
Arguably,我个人 unscientific 地猜测,induction 也可能是 consciousness 的
basis 之一。
- |
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t******l 发帖数: 10908 | 27 多数 vs 少数 是相对的。
在这个具体问题上,西裔和非裔,相对白人是少数,但相对亚裔是多数。
所以 arguably,给少数族西裔和非裔偏向,de facto 可能会造成对更少数族的亚裔的
歧视和欺压。
从这个角度看,color-blind 才是长期而言最公平的办法。
吗? |
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t******l 发帖数: 10908 | 28 其实楼上这个 “打击 over-represented minority” 的说法,反而说明了strict
scrutiny 的重要性。
因为 arguably,strict scrutiny 常常就是防止这种观点成为实际政策(race biased
policy)的最最重要的利器。
否则的话,谁都可以看你不顺眼,给你们谁谁谁套上一个个 “over-represented” 的
高帽子(majority 还是 minority 都不重要了),然后让政府随便定一个 race
biased policy,就可以合法地随便往死里整。
(dcbang 这次改当运输大队长不是?他是不是要反水?) |
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a*****g 发帖数: 19398 | 29 The one-room schoolhouse, that symbol of rural American education that dates
back to the earliest days of the Colonial era, might be on the verge of
making a comeback.
In recent years, a smattering of "micro schools" have popped up in places
such as California's Silicon Valley; Austin, Texas; and New Orleans,
offering parents a drastically different version of K-12 education than
traditional public and private schools. These are tiny schools—sometimes
with as few as half a dozen students—that pu... 阅读全帖 |
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t******l 发帖数: 10908 | 30 虽然俺上面是半开玩笑,但那确实是一个不折不扣的图灵测试,阐述如下:
Strong AI 的一个重要指标是 consciousness and self-awareness。
So being aware of one's own "ceiling" (and compare to other'
s), and attempt to increase such awareness, arguably, is part of the
consciousness and self-awareness。
But,如果仅仅是 driven by 简单本能或者 peer pressure,这类的膝跳反射,
without any question of why,我觉得这样的 AI 还没真正形成 consciousness and
self-awareness,还是处于 weak AI 和 strong AI 之间的过渡阶段。。。或者通俗的
说,猴子。// super fast run
所以从以上看,这个不折不扣地应该是一个图灵测试。 |
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t******l 发帖数: 10908 | 31 或者说,我个人认为图灵测试的很多问题应该是 neither provable nor refutable。
It's matter of the response。
Internally, and arguably, a strong AI respond the environment far
differently from weak AI.
:另外对于你说的 “你无法证伪另一种可能。。。”,这个图灵测试就是,如果你认为
:需要证明或者证伪,then you failed the test。因为证明和证伪本身不是 asking
a question of why itself,而是 some 马工 already pre-programmed the AMC 12 |
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t******l 发帖数: 10908 | 32 我觉得 arguably,不管是人还是阿发狗,fear factor,具体而言就是害怕“乱中崩溃
“ 的发生,都是重要的推动因子。而人和阿发狗的差别是在对 fear 的具体实现细节
上。或者说:
人因为害怕 “乱中崩溃”,就总想着避免 “乱” 的发生,而这样在具体实现上就发
生 “金角银边草肚皮” 的 8 billion 猴子的围棋理念。
而狗其实也害怕 “乱中崩溃”,但狗从相反的角度,总想着在中腹先贪上两手不贪白
不贪。而这样在具体实现上,就发生狗非常贪恋中腹。只要边角失先的代价可以接受,
狗就立马弃边角而在中腹不断贪先。最终狗就积累到在中腹的绝先(绝对先手)的获利
,超过了边角可接受的失先的代价。也就是 M18 地狱猫高速竞跑 加 101st 拼卡车,
绝先抢位 Bastogne 成功,造成 Paner 无法拔掉这个在中腹的 Bastogne 的钉子。而
拥有了 Bastogne 这种中腹上敌手拔不掉的战略钉子后,手中有粮就心中不慌(
decrease fear factor),最终就能大概率保证将来是 “乱中取胜” 而不会是 “乱
中崩溃”。 |
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t******l 发帖数: 10908 | 33 我个人的看法,intellectual 不是 built for superiority,而是 built for
surviving unknown and changing environment。
(其实 arguably,self-awareness 也是 built for survival。。。古人孙子说,知
己知彼。。。)
所以我个人觉得对教师而言,更重要的是这一场 “试演/彩排” 是不是逐步符合将来
的实际社会,而不是简单的公平合理。
:
:【 在 timefall (时光崩塌) 的大作中提到: 】 |
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h*****m 发帖数: 1034 | 34 Fable算不算一种“构造法”,用来说明枯燥无味的比较抽象的道理的最简洁最生动的
一种方式。
抢滩,air-lifting,烤肉拉扔飞刀。。。算不算“构造法”?
但是 arguably,“构造法” 或者 “reverse math modelling”,是基础数学里
绝大多数定理的最最简洁的证明方式。。。 |
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t******l 发帖数: 10908 | 35 当然,虽然是奇技,但还是有一定讨论的价值。我现在忙,先写一段散文,然后
在慢慢讨论。散文开始:
首先是抽屉原理的问题,抽屉原理在入门级数学竞赛里基本不用(原因可以日后讨论),
但抽屉原理本质上是 combinatorics 里面的一个特殊情况的例子。而 combinatorics
是入门级数学竞赛的重点之一。
其实是 “构造法” 证明/解题的问题。。。但 “构造法” 本身并不归类于 “奇技淫
巧”。。。其实我觉得 “构造法” 这个用词并没有体现其深意,我觉得更好的说法
是:“reverse math modelling” / “math model invention”,这么说:
通常的 “math modelling“,是基于 “math principals”,建立对特例的 “math
model”,从而解决 “real world math problems”。
而 “reverse math modelling” / “math model invention”,是反过来,海阔
天空吃饱了撑的瞎几把乱想一个 “space-time-pattern math model”,然后通... 阅读全帖 |
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h*****m 发帖数: 1034 | 36 这个对计算机如何证明数学定理实在是不懂。
目前看来,人类有一特点,就是会联想,有时风马牛不相及的事情也能给你瞎联系到一
起,可能就是神经短路的结果,但恰恰有时就是解决问题的关键。
另一特点是好奇,偶尔发现个什么就想总结出个规律来。大言不惭地说,我这次看到循
环小数的循环节乘以被除数等于999。。放两千年前(两千年前已经有一批数学家了?
那就五千年前吧),是不是也能整出个啥啥猜想一类的?计算机有没有这种好奇心?
至于阿发猫,首先,它会不会提出问题?貌似现在计算机都是有一定目标去完成的。就
解决问题来说,在已有成功先例的情况下,照猫画虎构造个什么来解决与已经解决的问
题类似的问题可能还行,也就是说有一定套路的解法。创造性地提出个什么理论,估计
还是不成。
更深一点说,人脑是不是图灵机?和图灵机之间有没有本质的区别?有没有不可逾越的
鸿沟?
),
combinatorics
而 “reverse math modelling” / “math model invention”,是反过来,海阔
天空吃饱了撑的瞎几把乱想一个 “space-time-pattern math model”,然后... 阅读全帖 |
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t******l 发帖数: 10908 | 37 我觉得 Piaget theory 的另一个问题是跟 "biological maturation"。
先引用一下 wiki:
http://en.wikipedia.org/wiki/Piaget%27s_theory_of_cognitive_dev
[quote from wiki] They suggested that development along Piaget's stages is
due to increasing working memory capacity and processing efficiency by "
biological maturation".[/quote]
我觉得 arguably,Piaget 是更多的在 measure "biological maturation",而不是
intelligence development。(或者用 bbs 的 slang,更多的是在测量 “人肉计算器
能力”,而不是真正意义上的 “High-Order-Thinking-Skill")。。。其中有两点我觉
得比较能说明问题:
(1)Piaget ... 阅读全帖 |
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t******l 发帖数: 10908 | 38 TBI 不一定需要头球,其概率也不能靠 “我看” 这种目测概率论。。。
另外 TBI 常见的是 brain frontal lube 的损伤,这个不是说损害解 USAMO
题目的能力,而是 lose personality。。。换言之,arguably,你不再是你
自己。。。虽然概率不那么高,但损伤巨大了。。。
并且 TBI 还不一定需要是 acute 的,chronicle 的小损伤累计的后果,其实
可能比 acute 的一两次更大。。。特别是娃娃们的大脑发育阶段。。。 |
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t******l 发帖数: 10908 | 39 或者 arguably,肖邦钢琴大赛可能是世界上最大的人肉琴槌击发器。。。所谓
的 “细节处理”,很可能就是阿发狗不屑于玩那个,因为是弼马温在打分。。。 |
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t******l 发帖数: 10908 | 40 这个有一定道理,我觉得体制内 健身体育 / 普及型音乐 的另一个作用,就是你所说
的 reveal characters 的过程。。。而 arguably,reveal characters 的过程,可能
也是 improve self-awareness 的一个重要方面。
或者更直接点,“健身体育 / 普及型音乐” 在 “小学生修养” 的角度,并不是 “
钢琴有利于数学” 这种 pseudo-profound bullshit,而是实实在在的一个 reveal
characters 的过程,为 improve self-awareness,为将来良好的心理心态,打下个基
础。
:拜读了:)
:在外,匆忙之中忘了带上网利器:) |
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t******l 发帖数: 10908 | 41 这么说的起因,是因为心理学测试都比较简单,测试的都是简单事实记忆。
但就好比马工的程序的数据段和代码段最终都是存在内存里,大脑的事实和逻辑最终都
需要记忆。
而 arguably,,既然大脑可以巧妙的修改对过去事实的记忆,没有理由大脑就不能修改
对过于逻辑的记忆。
或者举一个极端的例子,如果对欧几里德的几何公理逻辑体系的记忆被大幅度巧妙地修
改了,那会不会解几何题时的行为,就变得像在异次元空间行走,那样的支离破碎,那
样的不可理喻,同时其本人却毫无察觉?// run
:而 “永远的零蛋” 理论是源于 “大脑会悄悄地巧妙的修改自身过去的记忆” 理论。 |
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t******l 发帖数: 10908 | 42 另外我觉得我们的数学概念教育确实有问题,point-slope 直线的概念是绝对不应该当
机械来讲的。。。arguably,point-slope 直线的概念,是背靠着欧几里德第四第五公
理,和勾股定理并肩,成为构筑起笛卡尔坐标系解析几何的两块最最重要的概念基石。
。。
:
:【 在 timefall (时光崩塌) 的大作中提到: 】 |
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t******l 发帖数: 10908 | 43 忍不住说几句,这个 point-slope 对应于平直空间里的 "straight",不用相
似三角形概念证明一下,是说不过去的。。。因为这玩意儿根本不是直观到像欧几里德
/希尔伯特前几条又臭又长的公理不用说明,拿张纸直观对折就完事了。。。否则的话
,我们还要欧几里德第四第五公理干嘛?。。。勾股定理也不用那么麻烦的证明了。。
。三角形内角和也别证明啦。。。统统回到 pre-operational 算了。。。
其实我觉得基本应该是欧几里德那边从第四第五公理开始,笛卡尔那边从实数连续性完
备性公理开始,概念级不太严格的证明都得走一遍,否则严格而言属于高中数学肄业。
。。话糙理不糙。。。
:另外我觉得我们的数学概念教育确实有问题,point-slope 直线的概念是绝对不应该
当机械来讲的。。。arguably,point-slope 直线的概念,是背靠着欧几里德第四第五
公理,和勾股定理并肩,成为构筑起笛卡尔坐标系解析几何的两块最最重要的概念基石
。。。
: |
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t******l 发帖数: 10908 | 44 其实 arguably, mathematics is not derived from smartness, instead,
it is derived from absurdity。。。我拿 AMC10-level 的数学类比一下好
了,比如这个 AMC10-level 的 problem:
For equation "x^2 - 2*x + 2 = 0", find the product of 2 roots。
娃一看大喜,apply vieta's formula (product of root is equal to
constant term),得 x1 * x2 = 2。
看着确实不错。。。但 common core 不是提倡一题多解么?。。。要么用
complete a square 算一下嘛。。。OMG,sqrt(-1)? Do you think that
is a number? That is ABSOLUTELY ABSURD!!
But what if we don't take sqrt(-1) as a number (tag it as NaN)... 阅读全帖 |
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t******l 发帖数: 10908 | 45 http://www.spring.org.uk/2008/06/infants-are-intuitive-physicists-object.php
Simple explanation
In further studies Professor Baillargeon tested all sorts of variations on
this theme. Toy rabbits, toy mice and carrots were all used, with some
defying the laws of nature in the ‘impossible’ conditions and others
studiously following them in the ‘possible’ conditions. Each time, though,
infants looked longer at the apparently impossible events, perhaps
wondering if they were dreaming.
These studies ... 阅读全帖 |
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l****u 发帖数: 8729 | 46 M
arch 14: National Potato Chip Day
March 14, 2011 08:45 AM EDT
Today is National Potato Chip Day 2011! Potato Chips have been around for hu
ndreds of years and is arguably the #1 snack in America! Everybody seems to
love some variation of potato chip. If you prefer BBQ, sour cream and onion,
cheddar, or just the regular plain salted chip, there are literally hundred
s of chips to choose from!
Potato chips were first invented, or made, in 1853 and as the story has it,
they may have been created ... 阅读全帖 |
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m***8 发帖数: 7797 | 47 此文章俺大部分都同意,但是有些细节的,比如多次结帐,俺就做过,不觉得是有什么
错 -- 话说俺可是有两份报纸,有时候好丢的时候还买n分报纸呢。
这句说得好:
Breaking rules isn't like breaking laws. It's more like cheating on a test
— arguably unethical and best avoided whenever possible.
//看自己的人品问题。 |
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L*****E 发帖数: 658 | 49 【 以下文字转载自 Military 讨论区 】
发信人: gshjj (各输己键), 信区: Military
标 题: Too Asian zt
发信站: BBS 未名空间站 (Fri Nov 19 10:11:31 2010, 美东)
When Alexandra and her friend Rachel, both graduates of Toronto’s Havergal
College, an all-girls private school, were deciding which university to go
to, they didn’t even bother considering the University of Toronto. “The
only people from our school who went to U of T were Asian,” explains
Alexandra, a second-year student who looks like a girl from an Aritzia
billboard. “All... 阅读全帖 |
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