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Reclaiming The American Dream VI: The (Other) Lessons of Khan Academy

Howard Husock
This article is more than 6 years old.

To say that Khan Academy has important lessons to offer is to state the obvious. The Mountain View-based internet teaching institution—which has grown from founder Salman Khan’s individualized YouTube math lessons for his 7th grade niece to a worldwide phenomenon—offers thousands of free, plain-spoken online courses, from algebra to biology. But there are even broader lessons to be taken from the astounding success of Sal Khan, winner of the Manhattan Institute’s $100,000 2014 William E. Simon Prize for Lifetime Achievement in Social Entrepreneurship. Indeed, the lessons extend well beyond education

玛戈特·瓦尔斯特伦在20多岁时结束了一段充满暴力的感情。作为外交部长,她正在一个传统上属于男性的领域里挑战各种假定。
但关于是否会诞生另一个火爆产品,来打破关于后乔布斯时代苹果前途的质疑,库克许久以前就学会了耐心和相信自己的直觉,正如他在1998年加入正处在困境中的苹果时对质疑者置之不理一样。
这些包括纳米汽车在内的轻巧设计小得甚至连肉眼都不可见。
长久以来,科学家一直在研究干细胞分化为心脏组织的潜力,今年当他们创造出可以自己搏动的心脏组织时,这一研究工作达到了一个重要的里程碑。
A report from the ministry showed that employers recruited 5.2 million workers through public employment service agencies in the first quarter, dropping 229,000, or 4.5 percent, from the previous year.
为什么小皇帝詹姆斯不在双头肌和肩膀上再带那些奇怪的饰物,对此我很好奇。当然,我敢打赌他不会再带那些东西——因为它们没啥用处。

The story of Khan Academy’s start and growth is dramatic. Sal Khan, New Orleans-born and MIT-educated, was working in the finance industry as a hedge fund analyst when, in 2004, he learned that his niece, Nadia, needed help with algebra. He began sending her his own clear, step-by-step illustrated lectures (Khan himself did not appear) via YouTube. That allowed other web users to use the same lessons. The teaching of Khan—a complete outsider to education or education reform—went viral, ultimately catching the eye of Bill Gates, whom Khan learned was helping his own children with lessons first meant for Nadia. Khan eventually attracted $15 million-plus in philanthropic support from the Bill and Melinda Gates Foundation, Google , venture capitalist John Doerr, and others accustomed to the idea that radical newcomers might be worth investing in. Such funding allowed Khan to give up his day job and start Khan Academy, with a forthright, undeniably ambitious goal: a free world-class education, for anyone, anywhere.

两队将于10月5日抵达深圳并将在深圳大运中心进行比赛。
如果美国汽车行业杂志《沃兹汽车》(Wardsauto)的专家最新编撰的最佳引擎榜单可作为一种指示,那么在当代轿车、卡车和跨界车的引擎盖下面正发生一场静悄悄的革命。涡轮增压、机械增压和柴油引擎——甚至还有一款电动发电机——主导了第20届年度十大最佳汽车引擎奖;根据《沃兹汽车》,这些奖项“表彰了杰出的动力系统成就、世界级技术以及那些帮助推动汽车销售的稀有发动机或者电力推进系统。”
以人民币计算,12月份出口环比成功增长0.6%,超过了收缩0.1%的预期,不过仍大大低于11月份5.9%的增幅。以人民币计的进口增长10.8%,是预期4.8%的增幅的两倍以上,不过仍比上个月低2.2个百分点。
周四,胡润研究院发布了品牌榜单,估价447亿美元的腾讯成为今年最有价值的中国品牌,这是腾讯连续第二次位居榜首了。
201401/272266.shtml重点单词
除此之外,美国还将举行更为传统的庄重纪念活动,其中包括奥巴马总统在与美国首都华盛顿一河之隔的阿灵顿国家公墓向无名战士墓敬献花圈。
这一奖项于3月14日在阿姆斯特丹公布,是基于对全球上百万名旅客的调查而选出的。

Falke的最终失利令人扼腕,但eBay的表现确实无可匹敌。我以为自己对eBay的爱将矢志不渝,因为鄙人全部的穿戴和家中物件均来自这家公司,而它却向《纽约时报》(the New York Times)表示:“我们热切希望利用我们的平台,通过营造公平的竞争环境来造福数百万人。”
It is said in the report that the three major industries that graduates expected to work for are it/internet/telecommunications/electronics industry, financial industry/ banking/investment/fund/securities/insurance, government/public service/non-profit-making institutions.
One side of the capsized Eastern Star was rolled above water at 7:30 am Friday, as rescuers worked through the night to right the upturned ship in the Yangtze River. The side that has emerged shows "Eastern Star" in Chinese character on the hull.
3.3 进一步释放国内需求潜力
欧盟的美洲布局
She is now so successful that her mother has hired a security team who monitor the star 24/7.
The school ranks first for alumni satisfaction.
但来自宾夕法尼亚州(Pennsylvania)的玛蒂?齐格勒(Maddie Ziegler),她的人生完全不是这么一回事。
“你美丽得如此不真实,我的视线无法从你身上移开”,这爱意满满的歌声使金发女郎笑得合不拢嘴,同时她也拿出手机记录下了这美妙的一刻。
鉴于之前许多邦女郎在007电影中如昙花般一现,随后便星途黯淡,玛尔洛和经纪人正努力确保她与众多一流演员合作,正如邦德电影是用来为她的国际演艺生涯铺路一样。
Baoneng’s raid has been bitterly resisted by Wang Shi, Vanke’s founder who has sought out white knights in a so far successful effort to retain control of the management-led company. The takeover battle fuelled a surge both in the price of Vanke’s Shenzhen-traded shares and Mr Yao’s known worth.
2013年排名:14
mortgage
愿节日的愉快伴你一生。
上海金融学院的研究人员郭峰引用了周二华尔街见闻上的信息并表示,这也是自1978年中国改革开放以来,上海第一次见证了常住人口的减少 。
虽然有17%的毕业生将创业列为同等最重要的原因,但他们中只有2%的人将此视为自己唯一主要的目标。然而,学员身上的创业精神明显在增强,超过四分之一的毕业生(26%)称在就读EMBA期间或毕业后创办了自己的公司。
镜头切换到《爱乐之城》的演员和剧组人员那里,他们高兴得抱成一团了,但大家可以听到比蒂好像在说:“应该是爱玛?斯通。”而唐纳薇回应道:“什么?”当《爱乐之城》剧组上台领奖时,可以听到旁边的舞台管理人员说:“哦……哦!天啊!他拿错信封了!”
其实,中国经济增速放缓至8%左右,对中国乃至世界都是一件好事。更具环境可持续性、更加公平的局面,将缓解社会忧虑,而更高的消费将缓解全球贸易紧张。
愿新春美景与欢乐常伴随你!

One of the country's largest clinics, JK Plastic Surgery Center founded by Joo Kwon, recently opened a hotel to better serve customers, who spend an average of $17,675 during a single visit.
6. Now, like an addict who can't stop, Gross writes in his Tipping Point blog that QE will run to 2015. Earlier it seemed like the Bubble With No Name Yet should be renamed the Bernanke Bubble. But now, with Gross and Pimco's $2 trillion at stake here, maybe we should call it The Gross Bubble.
A total of 13.14 million new urban jobs were added.
[flait]
今年登榜的还有“starwars”(星球大战),排名第16。
The report found that third-tier cities are most livable places.

楼市量价提升库存压力突显 开发商谋新招应对

5月30日,日本南部海岸附近发生了强烈地震,使中国民众担心,继2011年后,类似海啸和福岛核电站熔融的大灾难会再次发生。不过,最后并没有出现人员死亡或重大损毁的报道。
8.鲜花往往不属于赏花人,而属于牛粪。
当时,身为首席执行官的库克也承受着压力,因为苹果除了从iPhone攫取利润之外,缺乏清晰的产品开发方向。维权投资者嗅到了血腥,开始围攻这家公司,打头的是大卫?艾因霍恩(David Einhorn),接着是卡尔?伊坎(Carl Icahn),他们游说改变苹果的经营和财务管理方式。伊坎施压要求苹果筹集巨额债务,向股东返还1500亿美元,并敦促苹果发布包括电视机在内的更多产品。
移动端取代网页端。
It would be foolish to assume western democracies are immune.
Belize's proximity to Mexico and the Caribbean ensures the street-food scene, providing an abundance of budget meal options.
2=中立
还有哪对系列电影的荧幕情侣可以像《暮光之城》的克里斯汀?斯图尔特和罗伯特?帕丁森这样成功开创戏路呢?两个人都成为了影坛名角。帕丁森在最新作品《好时光》中延续了他近年来这种让人几乎认不出的造型风格。在《迷失Z城》中,他把自己打扮成胡子蓬乱的眼镜男,如今他又把头发染成亚麻色,变身为一个试图在纽约完美做案,结果却让患有发育性残疾的弟弟(本?萨弗迪饰)被捕的银行抢劫犯。他试图用盗取的钱来给弟弟交保释金,结果麻烦接踵而至。很多的麻烦。除了饰演弟弟一角外,本?萨弗迪还和自己的哥哥约书亚?萨弗迪共同执导了这部电影。《好时光》入围了今年戛纳电影节的主竞赛单元,参与角逐金棕榈奖。该片于11月3日在日本上映,11月17日在英国和爱尔兰上映,11月23日在希腊上映。(资料来源:A24制片公司)
Participants in the study were between the ages of 18 and 44 and were asked to run twice – with and without shoes. After completing their quick runs, researchers found that the heart rate and overall run speed of each participant had no effect on memory, but the presence of shoes or bare feet did. The researchers have hypothesized that the need to engage the mind while running barefoot to avoid pebbles or other impediments could have a positive impact on a person's ability to remember things. If you're an adventurous person, you might try taking a barefoot jog around the block before your next test or before you need to remember something important.
谷歌2017全球搜索排名前十
Top male vocalist: Jason Aldean
'I was blown away by him,' Kushner recalls. 'The first time I interacted with him was at News Corp, when he was meeting with Murdoch, and I was looped in to provide perspective. Nick described the vision of what he was trying to accomplish. And he was providing insight to Rupert.' D'Aloisio's stage presence, coupled with the deep-pocketed credibility brought by Li, attracted a large group of benefactors to Summly, including Ashton Kutcher, Yoko Ono and Stephen Fry.
Zhou Qunfei from Lens Technology, the major touchscreen maker, ranks third on the list with a net worth of 45 billion yuan.
[sin'si?li]
13 Reasons Why

Banking
国家统计局最近开始跟踪研究的大城市的房价数据就支持这种可能性。
The fact is that I really don't careabout the popularity and also really focus on my work. Every time I alwaysfocus on how best to proceed with the next scene. My focus is on the action andstory, never the popularity.
从10年和20年的时间跨度来看,地域和资产类别的多元化已经证明对投资回报和风险管理有益。不幸的是,在12个月内,不一定能看到此种战略的好处。在如今这个140字微博消息和2分钟短视频盛行的时代,投资者不能以长期的表现来判断其投资组合的成败,又有何奇怪?
In this post, we’ll take a look at 16 software applications that I use almost every day — and discuss why you should too.
Tsinghua University holds the No. 1 spot in both computer science and engineering. The Chinese institution overtook MIT for the top computer science rank this year.
在实验中,参与者们被要求回忆一些他们在实验开始的时候看到的图片,其中,一半参与者在回忆之前进行了举重训练,另一半参与者没有进行这样的高强度活动。他们发现,参与了举重训练的人在记忆能力上有所提高。这项研究实现了运动研究上的独辟蹊径,其他研究的研究对象多是对有氧运动本身,研究时间跨度长达数,但是这项研究的研究对象却是人类记忆,在研究时也仅仅是要求参与者们花一点时间举重而已。研究人员证明了其实提升记忆力并不需要数个小时的锻炼。下次再有谁让你去举重或者去健身馆锻炼的话,你大概会想感谢他一番的吧?
单词designer 联想记忆:

About this series

Since 2001, I’ve helped direct an annual 深圳频现“利率维权” 多家房企否认干涉房贷利率 recognizing top social entrepreneurs: those who develop effective, original approaches to dealing with social problems and who rely mainly on private funding and volunteers to see their ideas to fruition. They are leaders of America’s civil society, doing the things that government can’t do—or can’t do as well.

decline
2.Nobody here can answer any questions you have about fencing. Google it.
以100亿港元(合12.9亿美元)购入大新金融中心(Dah Sing Financial Centre)的中国光大控股(China Everbright),只是过去一年里在香港大举购置总部大楼的众多内地企业之一。
中国的股市能否重回6000点?
Quite a few students were disillusioned by UK visa regulations. “A lot of people saw the programme as a gateway to employment in Europe,” says one. “If this was the objective, then a lot of them would have gone away unfulfilled.”
Based on a new estimate provided by the government of Dubai, its visitor spending of $31.3 billion this year far exceeds London's estimated $19.8 billion, which comes second.
前“世界小姐”朴雅卡·乔普拉位列2015世界美女榜第九。她是一名印度演员兼歌手,是宝莱坞片酬最高的女演员之一,也是印度最受欢迎、知名度最高的名人之一。她获得过无数荣誉,包括印度国家电影奖的最佳女演员奖项,以及印度电影观众奖的四项大奖。
Manal al-Sharif
Will the housing sector adjust easily to higher interest rates?
近些年来,细菌感染卷土重来,受害者达到了自1960s以来从所未见的最高值,初步确诊者的人数从429跃升至1300多人,从2011年到2017年期间的感染人数翻了两倍不止。
与此同时,居住在近百万套租金管制型公寓里的纽约人应该准备好,于明年(2015年——译注)6月在奥尔巴尼放手一搏,那个时候,租金管制法就要到期了。保障房的倡导者们希望看到这样一项规定的撤销——该规定允许业主在租金达到每月2500美元(约合人民币1.6万元)的情况下,取消对空置单元的租金管制。
或许你会认为这个60%并不起眼,但它是很重要的一步,因为在2003年,同性婚姻在美国的任何地方都是不合法的。
Do you tend to hide your feelings from others?
As for bitcoin in the mainstream banking system? “We are still a good year away, in our estimation, from where you can imagine a known financial services company using this,” Ludwin says. “But it’s not 10 years. And when it happens, people will be surprised by how quickly it spreads.”
For: Strong reviews, and praise for the performances - particularly from the children at the centre of the story, and Willem Dafoe, who plays the manager of the motel where they live.

The various mustaches were conceived by the designer Frances Hannon, who has built a number of facial hair styles for Bill Murray in Anderson films (“Rushmore,” “The Life Aquatic With Steve Zissou”). Here, she asked many of the actors to grow out their facial hair so she would have the option to cut it in any shape she wanted.
n. 外表,外貌,出现,出场,露面
China's pension insurance balance of urban employees and urban and rural residents added up to four trillion, according to the Annual Report on Social Security Development 2015.
A total of 13.14 million new urban jobs were added.
当支持者在周一早些时候涌向总督大楼,一人高喊,"今天,新的波多黎各开始了!" 随着其他人的欢呼,包括那些拿着美国国旗的群众。
Fans of Twilight will finally get to see how the wedding, honeymoon, and birth scenes play out with the release of Breaking Dawn Part 1. But before you catch R
One tomb, dubbed "M3," contained carvings of several mythicalcreatures, including four that represent different seasons and parts of the heavens: the White Tiger of the West, the Vermilion Bird of the South, the Black Turtle of the North and the Azure Dragon of the East.
Former Disney star-turned-wild child singer Miley Cyrus followed as the number two 'celeb gone good', according to the website. Father-to-be Channing Tatum came in third.
Treasury Secretary Jacob Lew announced the plans for the new redesign Wednesday. Lew said the Treasury Department will launch a social media campaign dubbed "The New 10" to solicit ideas on whose portrait should be chosen for the new bill, along with a series of public meetings. He will reveal his decision sometime this year.

中国始终支持一个团结繁荣稳定的欧盟,也支持强大的欧元,支持欧洲一体化进程,因为这有利于经济全球化、世界多极化和文明多样化。我对欧盟的前景是乐观的,我们对中欧关系的发展前景也是看好的。
Among the year’s biggest surprises was the plunge in gasoline pries. Economists differed on the economic impact—money in the pockets of consumers offset by declines in exploration and drilling activity—but everyone agreed that it was bearish for small cars and hybrids. The combination of cheap gas and a steep sticker price made the Cadillac ELR the runaway winner of the most disliked car of the year award. Only 155 of the Volt-based $80,000 cars found buyers in November.

我经常和陌生人说话
这张专辑中十分突出的一首歌《Him》(《他》)以低调的方式讲述了一个有关同性恋和文化偏执的催人泪下的故事,是一首倡导非异性恋者公民权的歌曲。
5.X-Men: Apocalypse
5.射击类比赛项目
[pr?s'periti]
May you have the best New Year ever.
May the glow of New Year candle fill your heart with peace and pleasure and make your New Year bright.Have a love filled New Year!愿新年的烛光带给你祥和与喜悦,祝你新年充满爱。
The former Miss World Priyanka Chopra stands 9th on the world's most beautiful women of 2015 list. She is an Indian film actress and singer. She is one of Bollywood's highest-paid actresses and one of the most popular and high-profile celebrities in India. She has received numerous accolades, including a National Film Award for Best Actress and Filmfare Awards in four categories.
在大多数市场中,这种增长将被认为是令人印象深刻的,但对中国来说,这代表着一种持续放缓。中国是全球第二大电影市场,在过去十年的大部分时间里,中国一直是好莱坞的增长源泉。
pollution
“One employee’s parents contacted the company to let us know their son was resigning.
Adriana Lima, 36, came in fourth place with earnings of $10.5 million, with new mother Rosie Huntington-Whiteley ($9.5 million) and Karlie Kloss, 25, ($9 million) rounding things off in sixth and seventh places, respectively.
《敦刻尔克》
vt. 为 .
Why the difference? It wasn’t because of a difference in the available information. As Koudijs and Voth point out, everybody in Dutch financial circles knew and understood the magnitude of what had happened. Nor was it because the Seppenwolde lenders had to rebuild their own finances. Within weeks of the default, the lenders knew they hadn’t lost any money.
最近雇主已经加大招聘力度。劳工部数据显示,10月份新增就业岗位17.1万个,今年以来平均每个月增加15.7万个。这个速度高于去年,并且是2006年以来最强劲的就业增长。[qh]
投资者也关注到了本田的这一困境。尽管在席卷全球的金融危机中,本田是全球少数几家能独善其身、避免严重亏损的汽车厂商之一,但在过去几年中,其普通股股价下跌了17.2%,而同期日经225指数却上涨了7.4%,丰田汽车的股价也上涨了19.5%。
8.Your Boss Sucks
[m?uld]
3.葡萄牙波尔图
2.伐木工
[k?'p?siti]
“One guy hired a marching band to accompany his announcement.”
即使我们把吉布森视作租赁合同并且他将在夏天离开,雷霆对这笔交易依然感觉良好。
比特币区块被讨论得最多的一项潜在用途,是去中心化的打车服务“Uber”。客户无需使用特定软件,就能订车并直接向司机付款,去掉中间商。(Uber创始人特拉维斯o卡兰尼克,抱歉)区块能用于各种用途,从储存安全文件(去中心化的的Dropbox)到“水印”技术,水印技术是指某块特定的比特币能包含比如你房子的房契。Digital Currency Group投资主管赖安o希尔基斯表示:“区块将催生数十年的创新。这可能催生零阻力股票发行、所有权转让以及智能合同。而上述事物共同构成了经济的支柱。如果你想创建分散管理的优步、Dropbox以及Facebook,你可以重塑互联网。”Digital Currency Group由前SecondMarket创始人巴里o希尔伯特创办。
At least one model of the next iPhone is expected to feature image-capture technology that can sense depth, and track faces and expressions. A range of new emojis include monkeys and robots, whose animated expressions can mirror the iPhone user’s face as Apple battles for users’ attention with the likes of Facebook and Snapchat.
达洛伊西奥也尽力维持着生活原本的样子。他的女友还是之前的那个女友。而且尽管他不再去学校了──坐在教室里就没空监管Summly的研发──他还是照常去找老师拿作业。他十分庆幸他的朋友不了解他企业家的那一面。而当我采访他的时候,他正准备和一群高中死党去希腊玩上一周。