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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

ex出,tend伸-伸出-延长;扩大
2010年标准普尔500指数年终收盘报:1300点。
反对:尽管该片被洛杉矶影评人协会评为最佳剪辑奖,但却没有受到纽约影评人的重视。它的势头会逐渐减弱吗?
糟糕的婚姻会导致早逝
Even though we are apart, you are in my heart this season.千山万水,隔不断我在佳节对你的思念。
The spread of HIV through drug injections has been effectively controlled. In 2017, the number of people infected through drug abuse was 44.5 percent lower than that in 2012.

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.

The number of country rankings published this year rose to 42, up from 38 last year. The newly featured countries are Argentina, Mexico, Pakistan and Romania.
intelligence
它被广泛误解为一部关于小说家大卫·福斯特·华莱士(David Foster Wallace)的传记电影,其实庞索特的这部影片是一部关于新闻的坏方法的喜剧,以及对文学名誉机制充满了解的辛酸讽刺。杰西·艾森伯格(Jesse Eisenberg)与杰森·西格尔(Jason Segel)使用“男人老友电影”(buddy movie)的传统方式,完美地呈现出一个新的子类:亦敌亦友电影。
库迪斯和沃斯在孜孜不倦分析荷兰金融记录的过程中得出了结论,悲观者和乐观者之间真正的区别在于他们是否亲身经历过这样的痛苦过程。库迪斯认为,可以类比的是那些经历过大萧条的人们的行为:这些人在大萧条梦魇过去后的几十年里,一直回避金融风险。
3.Video Editing: 19.2 percent increase
n. 飞机,水平
The best time to visit is between May and January in 2017. Be a part of an amazing experience, visiting architecturally and culturally rich heritage sites in Kathmandu Valley, the country's political and cultural hub, and Royal Chitwan National Park in the south, the habitat of rare animals like the one-horned rhino and Bengal tiger.

adj. 快的,迅速的
这款智能产品的使用可以追溯到1800年,但在2016年它才变得“智能”。 Meet Peggy,这种洗衣挂钩能够“帮助你减轻负担”,它会在洗衣机洗好衣服的时候提醒你,并告诉你天气是否适宜晾晒衣服。该装置连接到您的手机,它会在天气变化或是需要转移晾衣服的地方时发消息提醒你。
汤姆汉克斯和梅丽尔斯特里普出演,史蒂文斯皮尔伯格执导,这样一个为新闻自由而战的历史故事,有很多让评委刮目相看的地方。
据外媒体育网站sbnation.com报道,德国战车在刚刚结束的比赛中以四粒进球完胜葡萄牙。比赛结果令人震惊,多数观察员原本希望葡萄牙的攻势能更猛烈些。但这是否是本届世界杯又一场比分悬殊的比赛?的确不足为奇。
卓越雇主排名:11
THE NIGHTLY SHOW WITH LARRY WILMORE (Comedy Central, Jan. 19) Mr. Wilmore’s topical comedy show replaces “The Colbert Report” at 11:30 p.m. and represents the latest opportunity to introduce some diversity to late-night programming. No pressure there!
The dip for the Caixin gauge, which concentrates on smaller and private manufacturers, stands in contrast to a pickup for China’s official manufacturing PMI, which focuses primarily on large, state-owned enterprises. The divergence may indicate that smaller outfits have been hit harder by pollution curbs and other regulatory tightening than their larger, state-run competitors, which also enjoy privileged access to state-run lenders.
decline
祝节日快乐,新年幸福。
In this Jan. 24, 1984, file photo, Steve Jobs, chairman of the board of Apple Computer, leans on the new "Macintosh" personal computer following a shareholder's meeting in Cupertino, Calif
In 1953, Patient HM had experimental brain surgery that left him with striking amnesia. Decades of subsequent research with HM by neuropsychologist Suzanne Corkin made a major contribution to our understanding of memory.
新年的祝福,平日的希冀,愿你心境祥和、充满爱意,愿你的世界全是美满,
她说早在去年12月份,她第一次看这部电影的时候,就注意到了自己和电影中的女主角长得十分相似,当时她觉得十分诡异。
莱蒂齐娅·巴塔利亚按时间顺序为当地一家报纸记录了七八十年代巴勒莫的黑手党战争。如今,她的照片被一些博物馆和回顾展收录。
She is now so successful that her mother has hired a security team who monitor the star 24/7.
2.人工眼睛
这一发现引起了历史学家的极大关注,因为这为了解理查三世提供了更加确凿的证据。理查三世于1485年死于博斯沃思战役,之后有关他的一生一直充满争议。
中国企业家王兴(音)通过聊天软件“微信”(WeChat)与身在美国加州的姐姐和澳大利亚的叔叔保持联系。这款聊天软件让人得以一瞥中国网络公司怎样参与全球竞争。
The next step? Jalava plans to upgrade the finger with an RFID tag and add wireless support. He also wants to add more memory, which seems pointless to us. If he needs more storage, he has nine other fingers he can chop off and replace with flash drives.

根据考试结束后网上发布的考题和部分考生的反馈,今年的考题难度适中,长征火箭、我国外交事务、"玉兔"月球车和大学生创业等政治和社会热点问题都有出现。
If the oldest man ever elected president can “tweet like a kindergartner,” why not flip the script and see if a youngster can be elected to office and govern wisely?
雅虎首席执行官玛丽莎梅耶尔
医疗、医保、医药联动改革
您只需轻轻一挥将它们放飞,泡沫气球就会自己飘向空中。
hub

速递:26日早盘 沪深及恒指多只地产股大跌

Costco CEO Craig Jelinek
单词conservative 联想记忆:
All but one of the other top 10 categories reflected public fascination with celebrities. Teen pop sensation Miley Cyrus was in third place in the search rankings and television personality Kim Kardashianwas not far behind at fourth place. They were followed by Lady Gaga at No. 5, actress Megan Fox in seventh place, with Justin Bieber, American Idol and Britney Spears completing the top 10. The iPhone stood out as the exception, coming in sixth.
Facebook CEO Mark Zuckerberg
而中国喜剧片《羞羞的铁拳》目前已在全球获得3.26亿美元的巨额收益。
5.Create a Study Space
游戏平台:Xbox One、Xbox 360、PS4、PS3 、PC
数据显示,在欧洲外的最受游客欢迎20大目的地中,游客的消费主要用于购物,而非就餐。尽管其中很多是世界著名的美食之都。
Misrepresenting your credentials or intentionally plagiarizing, lying on time sheets or billable hours, misusing expense accounts or abusing company credit cards, stealing the kudos for a co-workers' accomplishments, or otherwise robbing your employers blind can all cost you your job.
China has continued to synchronize enterprises and institutions to raise the basic pension for over 100m retirees in 2017.
Vocal event of the year: "The Only Way I Know," Eric Church, Luke Bryan and Jason Aldean
The second match will be held at the Mercedes-Benz Arena in Shanghai on Oct 8.
《胡润百富榜》追踪逾2000名净财富在3亿美元或以上的民营企业家,今年的榜单新增了179位富豪。
10. Am I worrying about the future? Worrying about something that hasn’t even happened yet causes stress and anxiety. Focus on the moment in front of you and realize that it is all that exists.
More than 430,000 students from 1,767 universities in 31 provinces, municipalities and autonomous regions across China were surveyed. Of the respondents, 89.2% had considered starting a business, with 18.2% reporting firm intentions to do so.

单词avoid 联想记忆:
Sales of previously owned homes have slipped every month since July, according to the National Association of Realtors. That coincides with the surge in borrowing costs across the economy as a result of the Fed's signals about its bond-buying program.
But I know your generation, unlike any other generation in the past, is most eager to look at life differently. So as you leave school, I offer you a list of some obvious-yet-vastly-ignored truths that may help you look at life a little differently than just a series of paychecks:
随着中国收紧法规,中国的黄金公司日益期盼进行海外收购。去年,山东黄金矿业股份有限公司(Shandong Gold Mining)同意以9.6亿美元购买巴里克黄金公司(Barrick Gold)持有的阿根廷贝拉德罗(Valedero)金矿50%的股权。
"We hope the mother will come to us and verify the facts. If it's true that the user is a 13-year-old who spent the money without consent, we can negotiate a refund," the Tencent employee said.
Tencent has been helped by agreements to pre-install software with Chinese handset makers who sold increasing numbers of handsets abroad in recent years, particularly in emerging markets, according to Mr. Wang.
一个由8位《沃兹汽车》编辑组成的专家组在10月和11月评估了所有汽车车型使用的44款引擎,测试时间为日常上下班和周末在底特律都市区及附近进行的活动。各位专家根据多项特征进行打分,包括动力和扭矩、燃料经济、噪音、抖动和声振粗糙度、技术以及这些发动机相对于竞争对手的表现。
Copestake said fears over economic austerity and the stability of the euro had pushed the index of euro zone cities down in the past year while the inclusion of Caracas was due to artificially high exchange rate controls.

About this series

Since 2001, I’ve helped direct an annual 摇号前,一楼盘31组客户被剔除 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.

adj. 故意的,有意的;打算中的 n. 已订婚者 v.
8.《没问题先生》
Floodwaters surround homes near the Mantoloking Bridge the morning after Sandy hit Mantoloking, New Jersey.
As per their findings, the recovery mechanism based on reset SMS codes recorded a success rate of 81%, while the method relying on backup emails proved to be efficient in 75% of the cases.
时间:2010-01-29 编辑:vicki
Stanford Graduate School of Business in California rises from fifth place in 2016 to second, a position it last held in 2014. The Wharton School of the University of Pennsylvania is in third place.
'He does smoke cigarettes, he smokes many, many cigarettes.
6.You Spend Time Looking For Other Jobs
平板电脑的病毒出现。
瑞士、瑞典、英国再次占据榜单前三名。全球创新指数25强经济体中,有15个来自欧洲。
为了尝试遏制煤炭消耗量的增长,中国正在可再生能源和核能领域投入巨资,但尽管付出了这些努力,中国迄今为止依然是最大的温室气体排放国。中国每年因化石燃料燃烧和水泥生产排放100亿吨二氧化碳,几乎是美国的两倍,但美国的人均排放量依然远远高于中国。
然而,《秦时明月丽人心》并不能让更喜欢真实历史而非虚构故事的观众满意,该剧豆瓣评分仅为4.9分。
问:你今年夏天去了美国,感觉怎样?
简言之,无叶风扇就是没有叶片的风扇。它的工作原理是先将空气吸入风扇基座内部,然后通过扇头环形上的洞将空气吹出。这款风扇据说是詹姆斯·戴森发明的,并命名为"气流倍增器"。就像可以飞行的喷气背包一样,无叶风扇被《时代周刊》评为"2009年度伟大发明"之一,同样它也不是世界上第一个无叶风扇。实际上,第一个无叶风扇于1981年被日本的东京芝区电力公司获得专利。尽管东京芝区电力公司的无叶风扇并没有用于生产制造,但詹姆斯的无叶风扇的原始设计与其设计相似,所以专利局拒绝授予詹姆斯这个专利。尽管授予东京芝区电力公司的专利已经过期,但在授予詹姆斯这项新专利之前,专利局需要他提供该设计的创新之处。詹姆斯的经理吉尔·斯密斯并没有否认这两种无叶风扇间的相似性,只是说两者间的差异在于所用"科技"不同。
一份产业报告显示,随着国内手机制造商加快创新,国产品牌手机仍占据国内手机出货量的主要份额。

The four megalopolises also saw fewer traffic jams after November due to reasons ranging from less travel in winter and smoggy days to the return of migrant workers to their hometowns.
在那之前,她曾出演过大受欢迎的情景剧,并且也因饰演的角色而小有名气。
designer
Saving Cancer Patients in Africa
“双创”是有着很强的生命力的。
4、Tardiness
“Someone spilled a pot of hot coffee on the candidate.”
An international medical journal's retraction of 107 research papers from China, many of them by clinical doctors, has reignited concerns over academic credibility in the country.
同时,2016年应届毕业生选择就业的比例有所上升,比例由2015年的71.2%提高到 75.6%。

Additional reporting by Ma Nan
The Internet has flattened the world, and Facebook has banded us together as one big family. Our grandfathers inherited regions, my generation inherited nations, you have inherited the world. You are now only 4.74 people away from any human being and an average of two days away from any inhabited corner of the world. So travel. Africa, Europe, India, China or Brazil, go where you can learn the most, embrace what can teach you the most.

7. Pemuteran, Indonesia-Bali's pemeturan has sites for scuba diving among coral-covered Buddha statues, while ground-level offerings include beachfront resorts and restaurants.
It was a rare glimpse into his closely guarded personal life that also put at risk Apple’s brand in less tolerant parts of the world. Mr Cook was driven to take a stand by his experiences growing up in Alabama, where he has talked of seeing discrimination that “literally would make me sick”.
8.Wheel Skates
n. 改善(正), 修正案,某物质能改善土壤有助生长
entertainment
Look up "side-splitting humor" in the dictionary and you should probably come across the trailer for Girls Trip, which is the funniest movie of 2017, no contest.
It has now entered the top 20 for the first time.
*Writing for a Variety Series: “Last Week Tonight With John Oliver”
2.伐木工
That was true, too, of “Mad Men” on AMC. which in its seventh season has all but exhausted its characters and its 1960s setting, but is still keeping viewers guessing about the end, which won’t air until next year. “The Sopranos” ended ambiguously. “Breaking Bad,” put an end to Walter White. Now, the next television mystery looming ahead centers on Don Draper’s last moments, dead or alive.
Best film and best director. Surprisingly, Nolan has never received a directing nomination from the Academy.
Some industries will likely pick up faster than others. Industries such as construction and manufacturing will probably begin to hire sooner. Retail, tourism, and hospitality, which depend entirely on consumer spending, will probably be among the last to recover.
煽动家越是热情洋溢和野心勃勃,民主体制就越有可能沦为专制统治。
We will deepen institutional reform to build a sound ecological environment.
12岁女孩发现古埃及护符
相比之下,沪股市盈率为12.6倍。这反映出A股和H股的巨大价差(37%)。在经历2015年的跌宕起伏之前,二者价差更多时候处于20%以下——暗示H股指数大有上行空间。诚然,H股指数并不代表中国“新经济”中最好的部分,特别是银行股占比偏大。增长预测十分惨淡。然而,在预期已经如此糟糕的情况下,很难想象还能坏得哪里去。即使是受产能过剩困扰的地产业也在逐渐走出低迷。
互联网P2P借贷平台在中国发展迅猛,但随之而来的是众多的诈骗案件。
《皮囊之下》就是如此的直观如此的自由不羁,抛开欢快,离奇的剧情和电影本身的情色——一切都处于黑暗中,摧毁性的性爱中。它是一种力量,在你的皮囊之下。
document
?备用发电机的失败使得纽约大学医院分部的Langone医学中心被迫撤离。大约200名病人被迫转移。官员们正在调查备用电源失败的原因。
['deziɡ,neitid]
“老实说,我真的不担心。”科比说,“我的投篮会变好的。”
The system for ensuring responsibility is taken for poverty elimination will be effectively enforced, the strictest possible evaluations and assessments of poverty alleviation will be carried out, and stern measures will be taken to address deception, falsification, and the manipulation of numbers in poverty elimination work. We must see that the results of our poverty elimination earn the approval of our people and stand the test of time.
国家统计局高级统计师绳国庆将这一下滑主要归因于食品价格下降了1.4%,这是15年来的首次下降。
The deal makes a millionaire of 17-year-old Mr D’Aloisio, who taught himself to write software aged 12 and will join Yahoo’s London office while he continues his studies at school.
业内人士称,该调查显示我国正在进行产业升级,高附加值的服务行业呈上升趋势,这将带来一个欣欣向荣、需要理工类专业人才的互联网产业和一个蒸蒸日上、需要财经类专业人才的金融产业。
n. 隧道,地道