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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

Celebuzz has pulled together some of the best snaps of celebrities who go pumpkin picking.Have a look now in the gallery above, then tell us: Are you ready to celebrate Halloween on Wednesday?
vt. 打斗
这项任命是由澳大利亚贸易、旅游与投资部长史蒂文·乔博于2月21日宣布的。中国国家旅游局局长李金早出席了该活动。
批评人士一直急于指出,库克对新产品开发的参与度不如他前任那样高,而且当他走上舞台介绍新品时,也无法引起同样的兴奋。但库克知道自己的短处,他从健身和时尚界招揽人才,组建了一支新团队,其中包括前博柏利(Burberry)首席执行官安杰拉?阿伦茨(Angela Ahrendts),以及工业设计师马克?纽森(Marc Newson)。
回购股票会帮助推高股价,很多分析师将标准普尔500(Standard & Poor's 500 index)创下多次历史新高归功于股票回购的盛行。
No. The Bank of Japan’s life will get tougher in 2018 as the US Federal Reserve tightens policy and widens the interest rate gap with Japan. But governor Haruhiko Kuroda is determined to hike rates in response to one thing only: inflation. The BoJ may let the yield curve climb a little if prices start to accelerate, but real interest rates in Japan will end 2018 no higher than at the start of the year.

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.

This technology previously existed for arms, but legs are rather more complicated. And since a misread signal can send you jumping off a bridge or in front of a moving car, thought-controlled legs need more stringent programming than equivalent arms. As one of the researchers delicately put it, “If you're using a bionic arm and it misbehaves, the elbow may move slightly. If the prosthetic leg misbehaves . . . that could be quite a safety issue.”
“有个员工的父母跟公司联系,告诉我们说,他们的儿子辞职了。”
They need more talent. Full stop. The best avenue for attracting talent for them has always been the draft.
But Choupette isn't only a kept kitty, for she made more than £2.3million in one year alone after appearing in just two ad campaigns — one for Japenese beauty product Shu Uemura, and for German car company Vauxhall.
圣加伦大学其他单项高分包括在校友国际流动性方面排名第一,在国际体验方面屈居亚军,在就业安置方面排名第三。
泰勒·斯威夫特vs. 凯蒂·佩里
哈维尔以自己的名字开了一个储蓄账户,并且用这些信息注册了AdWords账户。

我们每个人都会说些善意的谎言,这毫无疑问,问题在于为什么我们要这么做。有些善意的谎言可以挽救我们的关系,有些可以缓解忙碌的处境,还有些可以为我们赢得时间。我们每个人都在说善意的谎言,我们没有理由去否定这个事实。只要不会伤害到其他人,不会触犯法律,这些善意的谎言是会让我们的生活更美好的。大多数善意的谎言都是我们对于真相的另一种延伸的阐释。
It was there in Rossella Jardini’s Moschino, from the bows and bouffants of spring-summer 2009 to the Mary Quant-inspired spring 2013 collection.
According to a report by Beijing Statistics Bureau, retail sales of consumer goods in the Chinese capital surpassed 1 trillion yuan ($152 billion) in 2015, up 7.3 percent year on year.
PC demand has been hit by competition from smartphones and tablets, along with longer lifecycles for PCs. Shipments fell in all regions around the world and have declined for five quarters in a row, according to IDC's figures.
全球其他地区能加以配合吗?
单词debut 联想记忆:
根据中国海关总署(General Administration of Customs)的数据,在经历了此前一个月的同比下跌1.4%之后,11月份中国的进口同比增长6.7%,至1522亿美元,远高于同比收缩1.9%的预测中值。
New Year's greetings and best wishes!
May the New Year be a time of laughter and real enjoyment for you. Best wishes.
愿你的新年充满温馨,祥和,与亲人团聚的快乐,祝乐陶陶,新年乐无限。
securities
Mark Zuckerberg, CEO of Facebook Inc, said at the forum that "Artificial intelligence will understand senses, such as vision and hearing, and grasp language better than human beings over the next five to 10 years."
Such borrowing is predicated in part on the assumption that by decontextualizing a style you also strip it of any possible negative implications: military, dynastic, what have you. It becomes an aesthetic form that exists on its own terms, as opposed to one that symbolizes all sorts of complicated societal or political convulsions.
至于说比特币进入主流银行体系?卢德温表示:“据我们估计,现在距离知名金融服务公司采用比特币,还有很长的路要走。但是用不了10年那么久。而且一旦出现萌芽,其推广的速度之快将令人震惊。”(财富中文网)
China will remain an important engine for world growth amid sluggish global economic recovery.
4. No talking during the game, wait for half-time or end of the game.
梅的政府提出了一条规则,以公开羞辱雇佣外国工人的雇主。她的第一次重要讲话中充满了对多元文化主义的尖锐讽刺,比如讽刺那些自称“世界公民”的人其实“哪儿的公民也不是”。
The report also found traffic congestion in first-tier cities such as Beijing, Shenzhen, Guangzhou and Shanghai have stopped getting worse with local government efforts.
Farewell to Cassini

韩国全州——在全州的韩屋村,仍保留着几百座传统的韩式房屋。
pol擦亮+ish表动词,“造成…”→擦亮
在上月销量最高的SUV和MPV制造商中,大家所熟悉的长城汽车和上汽通用五菱汽车成功卫冕。在轿车和掀背车型上,上汽大众也保持其冠军地位。
Mr Ravenscroft ended up leaving teaching to found Enabling Enterprise, a body that seeks to bridge the gulf between schools and business by taking pupils out of the classroom and giving them practical projects and visits to businesses, including UBS, the bank, and Freshfields, the law firm.
第二晚(12月9日)的苏富比(Sotheby’s)拍卖会共拍得2260万英镑(含佣金),比佳士得前晚的表现要好得多,不过也只是略高于2180万英镑(不含佣金)的最低估价。44件拍品中有15件流拍,比例达34%。
adj. 国内的,家庭的,驯养的

家具新老更替 原创设计追求越来越高

?援助工人担心在海地的粮食危机,上周那里飓风桑迪造成了52人死亡。联合国也担心洪灾可能导致霍乱病例急剧上升。在加勒比海桑迪造成至少69人遇难。
习及一些领导人员已经明确指出,中国将会进行可持续发展、内需为依托的经济转型,为此中国可以忍受稍微慢一些的增长速度。于是一些预言家马上就下出结论,认为中国经济会因而立即大幅减速。特别是中国曾经有过这样的先例。在1978到1993年中国领导人进行改革开放,然而在政策施行的最初阶段中国经济曾经遭遇不稳定。
节目14 歌曲《报喜》,陈慧琳
学员平均年龄:费城班33岁,旧金山班36岁
深入推进“互联网+”行动和国家大数据战略;
China’s exports and imports suffered larger-than-expected drops in the first month of this year in both renminbi- and dollar-denominated terms.
你是否经常闷闷不乐、心情不好?
urban
在领英平台上高频出现是找工作的关键。你知道这点,你们经理也知道这点。你的经理兴许还知道你知道这点。所以她会从开始关注周一你的个人简介只是有个大概框架,到周五你增加了工作经历,新人脉,状态更新,推荐信慢慢被顶起,别一夜之间从0涨到500那样太明显了Foss提醒道。
科学圈外的人士对论文撤稿的反应不一。
While oil prices may rebound in 2015, they almost certainly won't return to $100 a barrel any time soon, barring a geopolitical crisis in a major petroleum-producing region. So the gift will keep giving this year and further feed an accelerating U.S. recovery.
Peace and love for you at New Year from all your students.祝老师新年充满平安和爱。
这部13个小时的,关于长毛狗经历的影片花了45年才来到美国的影院,但时机却恰到好处。里维特先生淘气地在巴黎、法国文学与若干永恒的哲学谜题(真实的本质是什么,我们怎么知道我们知道,因与果之间的联系)之间徜徉,它既是一个迷人的,被重新发觉饿出来的艺术品,片长简直疯狂;与此同时,也警示着电影的未来。一切都已经做过了,一切都仍然是可能的。
The women in tech: Tech takes a second turn as a category on the Power Women list. Five tech women made the top 25 this year, including Facebook’s Sheryl Sandberg (No. 6), Rometty (No. 12) and HP’s Meg Whitman (No. 15). There are 16 tech women in total, including also Susan Wojcicki, SVP of ads at Google (No. 30) and Sun Yafang, chair of Huawei Technologies (No. 77).
The report found that third-tier cities are most livable places.

胡润估计,中国内地目前有594位身家十亿美元以上的富豪,在香港、台湾和澳门还有94位,而美国仅有535位。
尽管销量大幅增长让人欢欣雀跃,但它并不是汽车业今年最重大的新闻。底特律先是因为通用汽车公司(General Motors)提拔玛丽?芭拉出任汽车业首位女性首席执行官而欢欣鼓舞;紧接着,福特汽车(Ford)首席执行官艾伦?穆拉利在重回波音公司还是加入微软公司(Microsoft)两者间犹豫不决之际,它又紧张得大气都不敢喘。传统的三巨头抱怨现有产能已挖掘到极限,开始制订扩张和聘用新人的计划。特斯拉公司(Tesla)让电动汽车的销量火了一把,而且不肯按行规出牌;而同时谷歌公司(Google)则在自动汽车研制上一马当先。
When it comes to diversity, I am optimistic that at some point the rise of enlightened younger executives will trigger a sudden change of attitude in the boardroom. This will not happen in 2018, though the imbalances and abuses of power evident in sexual harassment scandals, from tech to media, could accelerate change.
Norway, which has twice rejected European Union membership, ranks No. 10 overall. The country takes the No. 1 spot in Citizenship and the No. 2 spot in Most Transparent.
乌拉圭之所以取得成功,不仅仅是因为它对足球的激情,还因为其早期文化的包容性。在1950年世界杯上,当时其邻国巴西仍然对黑人球员心存怀疑,乌拉圭队却以拥有一位黑人队长、杰出的巴雷拉而感到自豪。此外,乌拉圭在世界杯成型期的胜利造就了延续至今的血统,它的很多球员如今都在海外的一些世界豪门俱乐部踢球,如利物浦的苏亚雷斯和巴黎圣日耳曼的卡瓦尼。
over $50,000 category, pickups and SUVs distributed through non-premium dealers outsell German luxury brands.
2. The new one childplus policy will substantially raise the birth rate, contributing up to 2million new children to the 2014 economy, a 15 percent one-year lift that willonly further boost consumer morale and spirit.
不过,在这一反弹中也出现了奖金数额的下滑:去年的平均年终奖是12821元人民币(合1861美元),比2015年多了大约2000元人民币,却仍比2014年的平均值少了800元人民币。在奖金缩水的被调查者中,逾四分之一的人将原因归结为公司业绩太差。

About this series

Since 2001, I’ve helped direct an annual 内蒙古商品房待售面积持续下降 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.

Mr Cook’s decision to expand its cash return programme of dividends and share buybacks helped to defuse the situation with the activists, returning $94bn to date. In the end, he stared down the challenge just long enough for the next wave of iPhone growth to hit and new products to emerge from Sir Jonathan Ive’s workshop.
在9月初发布的另一份报告中,世界气象组织(World Meteorological Organization)称,2013年大气中的二氧化碳水平,比工业革命之前的普遍水平高出42%。其他重要的温室气体含量也有所增加,与前工业化时代水平相比,甲烷增加了153%,一氧化二氮增加了21%。
人命关天,安全至上。
Yes, pensions for retirees at state and municipal levels are preventing recovery. Corporate pensions are also a big problem, widening America's inequality gap: Drug company McKesson's CEO has been boss for 14 years, but will retire with a $159 million pension, while the income of America's average wage earner has stagnated for 30 years.
这个12岁的女孩已经成为了在Instagram拥有300万粉丝的超级巨星,她和流行歌手希雅(Sia)合作的MV在YouTube上点击量超过10亿。
陶博宏指出,日本监管机构正在鼓励基于收费的销售模式,出台了新的受信规则和其他措施,这些举措将会增强ETF的低成本吸引力。
American brands such as Chipotle, Texas Instruments and General Dynamics are on the list for the first time.
时间长度:24个月
这些专家都不是轻量级的。杰出的历史学家玛格丽特?麦克米伦(Margaret MacMillan)在2013年12月的一篇为布鲁金斯学会(Brookings)撰写的文章中说:“像1914年的世界一样,我们正在经历国际权力结构的转换,新兴大国正在挑战老牌大国。”她补充说,“如今,同样的一幕正发生在美国与中国,以及中国与日本之间”,同时她还表示,“中国与它另外两个邻国——越南和马来西亚——也有爆发冲突的可能性。”
Baby Driver is so much fun, although it's not necessarily non-stop LOLs, it's definitely non-stop lowercase lols.
立场:拒绝在感恩节开门营业
大多数人对瑞典的印象是“一个阴冷而美丽的国度”。但这并非概括瑞典的全部。作为斯堪的纳维亚半岛上面积最大的国家,瑞典人口却十分稀少,对于那些厌倦嘈杂、喜爱静谧生活的人来说,瑞典可以说是人间天堂。在这样舒适的环境中,品尝新鲜海鲜、浆果以及特色奶酪等当地美食,是再合适不过了。
德里克·罗斯
But 'averages' are old data, not future facts. Happy talk won't restart a bull. And more warnings won't puncture an old bubble. Cycles have lives of their own, move up and down when they damn well feel like it. That's nature.
因为这里说的是BBC的夏洛克,所以你的华生不是真傻,只是用自己的方式展现智慧。他还有点不确定自己的性向(万一是直的呢)。

失业率减幅在2015年的下降得可能不会那样的迅速,据经济学家所言,特别是如果更多的人进入劳动力市场由于更容易找到工作。尽管如此和2014年相似的大量招聘和录用将会使低的失业率数据显得更加的可信。
有迹象显示,人们对公务员的热情可能正在消减,招聘网在三月底发布的一份报告称,仅仅两个月,已有1万多名公共单位职员通过该网站提交了简历,其中包括公务员和公共机构工作人员。报告还表示,去年同一时期,提交简历的人数比今年高34%。
The Explore experience in Brazil is available on both iPhone and Android. Simply open Google Maps on your mobile phone and tap "explore food And drinks near you" at the bottom of the screen. Depending on where you are and time of day, Google Maps will share lists of food and drink locations around you, ranging from "best breakfasts" to "waterside dining", says Bryan Cheng, Product Manager, Google Maps.
It's important to remember that even when the overall number of jobs goes down, some companies are still adding workers -- it's just that others are cutting even more.
周二公布的数据显示,去年12月,中国规模以上工业企业利润同比下降8%,是2011年末以来的最大降幅。11月数据的同比下滑幅度为4.2%。
In Canada, we live the privileged life, with plenty of food, water and shelter—we have watches, bicycles, computers and television sets. 在加拿大,他们过着特权般的生活,他们有很多食物、房子和水。他们拥有很多手表,汽车,各种电器和奢侈品。
Framing the ’80s
单词spontaneous 联想记忆:
据IDC表示,2016年全球智能手机的出货量达到了14.7亿台,同比去年上涨2.3%。

The second match will be held at the Mercedes-Benz Arena in Shanghai on Oct 8.
But pop's wider world also offered a lot of pleasures from artists all over the spectrum, such as the 20th century legends like Blondie and Tori Amos, and upstarts like Dua Lipa and Girl Ray.

国家卫生健康委员会补充称,其中81.8%的新病例是同性恋行为造成的,这是由于学生“尽管对疾病有很高的认识,但对保护的意识不强”。
中国共产党第十九届中央纪律检查委员会第二次全体会议上通过的一项声明称,今年,中国将进一步加强打击腐败的国际合作。
China's consumer price index (CPI), a main gauge of inflation, rose by 1.6% in 2017, lower than the yearly control target of 3%, the National Bureau of Statistics (NBS) said on its website.
vt. 安慰,使
Those born after 1995 tend to make more varied choices and are likely to combine work with their hobbies.
Meanwhile, it's onto 2010:
2016年最不智能的9种智能产品
除此之外,它的设计者是92岁的黄永玉大师,一位著名的画家,使它成为了极具收藏价值的物品。
James Bond Themes Honorable Mention: "We Have All The Time in the World" by Louis Armstrong
n. 保守派(党),
This is the second year running that Peking University has reached the height of No. 2 university.
9. You've been avoiding your boss。
我国近日发行的2016年猴票同样由黄永玉创作。面值为每张1.2元钱,也颇受关注。在正式发布之前,收集者已经在邮局外排起了长队。
“邦德对待女人的态度是那种高高在上的、肉欲的,这完全符合007系列小说中邦德的形象。但我创作出十分强势的女人,与他难分伯仲地竞争,他的看法由此受到挑战。
Yes. Supply outages and geopolitical risk factors will probably persist, alongside output curbs by global producers. But whether prices can maintain levels at $70 or above is dependent on the willingness of Russia to keep backing a Saudi Arabia-led effort to cut production in the face of growing US shale supply. Other participants in the co-ordinated effort also need to sustain strong compliance with the deal, the incentive of which declines as governments reap the rewards of higher prices.
库什纳回忆道,我当时被他深深折服了。他到新闻集团去见默多克时,我与他有了第一次接触,当时我被一同叫去提提意见。达洛伊西奥在会上描述了他想要实现的远景。他帮助默多克加深了对一些事物的见解。达洛伊西奥在台上的优异表现,加上背后李嘉诚的雄厚财力,为Summly招来了包括艾什顿?库奇(Ashton Kutcher)、小野洋子(Yoko Ono)、史蒂芬?弗莱(Stephen Fry)等许多人的捐赠。
荷兰合作银行表示,预计大豆价格将保持强劲,目前在1蒲式耳10美元上方,同时由于需求稳定上升,预计奶制品价格明年也将上涨。
Four government agencies including the commerce ministry and the central bank said in December they would apply tighter scrutiny to "irrational" outbound deals including real estate, hotels, movie theatres, entertainment assets and sports clubs.
单词complex 联想记忆:
Barack Obama went on the offensive over foreign policy in the third and final presidential debate, repeatedly accusing Mitt Romney of flip-flopping on major international issues but failing to deliver a killer blow to his opponent's resurgent campaign.
lace
巴黎是前十名中唯一的欧元区国家,而且下降了3个名次,报告指出这可能是由于对欧元的信心下降。
Tesla has an order backlog of $226 million. At the production run rate of 1000 cars a week expected at the end of 2014, that translates to a 30-week backlog.
贾斯汀比伯名列第五,因他为慈善组织Pencils of Promise和Believe Charity Drive做的贡献。
lace
The Shape of Water
According to government sources, property sales in Hong Kong fell almost 40 per cent in the first half of the year compared with the same period in 2015 — both in terms of price and volume. An index from the Rating and Valuation Department released this month showed the commercial sector was a particular casualty, with prices falling 5.7 per cent in May compared with the same month last year.