Let's use video to reinvent education | Salman Khan

1,314,533 views ・ 2011-03-09

TED


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譯者: Coco Shen 審譯者: Geoff Chen
Khan 學院因
00:16
Khan Academy is most known for its collection of videos,
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它豐富的影片資源而出名
00:19
so before I go any further,
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在我開始演講前
00:21
let me show you a little bit of a montage.
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先讓我們看一段剪輯影片
00:24
(Video) Salman Khan: So the hypotenuse is now going to be five.
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於是這個直角三角形的斜邊就成了5
00:27
This animal's fossils are only found in this area of South America --
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這種動物的化石只能在南美這個地區找到
一條很清楚的界限
00:31
a nice clean band here --
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00:32
and this part of Africa.
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還有非洲的這個區域
00:34
We can integrate over the surface,
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我們可以合併表面
通常用 Σ 來標記
00:37
and the notation usually is a capital sigma.
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00:39
National Assembly: They create the Committee of Public Safety,
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國民大會:他們創造了公共安全委員會
聽上去像是個不錯的委員會
00:43
which sounds like a very nice committee.
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注意,這是乙醛
00:45
Notice, this is an aldehyde, and it's an alcohol.
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是一種酒精
00:48
Start differentiating into effector and memory cells.
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開始分化為效應與記憶細胞
一個銀河。哇,那裡又有一個銀河
00:52
A galaxy. Hey! There's another galaxy. Oh, look! There's another galaxy.
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看啊,那裡還有另外一個
00:55
And for dollars, is their 30 million,
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對美元來說,是三千萬
00:58
plus the 20 million dollars from the American manufacturer.
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加上從美國製造商來的兩千萬
01:01
If this does not blow your mind,
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如果這還不夠讓你瞠目結舌
01:04
then you have no emotion.
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你就是麻木不仁
01:06
(Laughter)
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(笑聲)
01:08
(Applause)
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(掌聲)
01:13
(Live) SK: We now have on the order of 2,200 videos,
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我們現在有
兩千兩百個影片
01:17
covering everything from basic arithmetic, all the way to vector calculus,
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從基本的算術
一直到向量微積分
還有一些你剛剛看到的科目
01:22
and some of the stuff that you saw up there.
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01:24
We have a million students a month using the site,
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一個月有百萬個學生使用我們的網站
01:27
watching on the order of 100 to 200,000 videos a day.
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一天有一百到二十萬個影片被觀看
01:31
But what we're going to talk about in this is how we're going to the next level.
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但我們今天所要談論的
是如何提升這項服務
01:35
But before I do that,
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在我這樣做以前
01:37
I want to talk a little bit about really just how I got started.
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我想先談談我究竟是如何開始的
01:41
And some of you all might know,
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你們其中的一些人或許知道
01:43
about five years ago, I was an analyst at a hedge fund,
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五年前我是個避險基金分析師
01:46
and I was in Boston,
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我當時人在波士頓
給我在紐澳良的表弟上課
01:49
and I was tutoring my cousins in New Orleans, remotely.
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當我把第一支影片放上 YouTube
01:52
And I started putting the first YouTube videos up,
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01:54
really just as a kind of nice-to-have,
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不過是把它當成一種不錯的
01:56
just kind of a supplement for my cousins,
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輔助教材
01:58
something that might give them a refresher or something.
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讓他們耳目一新之類的
02:01
And as soon as I put those first YouTube videos up,
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當我把第一個 YouTube 影片放上去以後
有趣的事發生了
02:04
something interesting happened.
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02:05
Actually, a bunch of interesting things happened.
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事實上是許多有趣的事發生了
第一是我表弟的反應
02:08
The first was the feedback from my cousins.
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02:10
They told me that they preferred me on YouTube than in person.
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他們說
他們喜歡 YouTube 上的我更勝真人
02:15
(Laughter)
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(笑聲)
02:22
And once you get over the backhanded nature of that,
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而且一旦你忘記話中那諷刺的部份
你便能聽見一件非常重要的訊息
02:27
there was actually something very profound there.
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他們是說
02:29
They were saying that they preferred the automated version of their cousin
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他們喜歡自動化版本的表哥
勝於真正的表哥
02:33
to their cousin.
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02:34
At first it's very unintuitive,
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剛開始會覺得很反常
02:36
but when you think about it from their point of view, it makes a ton of sense.
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但當你用他們的角度來想,事實上很合理
狀況是
02:40
You have this situation where now they can pause and repeat their cousin,
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他們可以把表哥暫停或重複
02:43
without feeling like they're wasting my time.
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而不用感覺浪費了我的時間
如果他們要復習
02:47
If they have to review something
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02:49
that they should have learned a couple of weeks ago,
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兩個禮拜前學的東西
甚至是幾年前學的東西
02:52
or maybe a couple of years ago,
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02:54
they don't have to be embarrassed and ask their cousin.
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他們不用不好意思地來問我
02:56
They can just watch those videos; if they're bored, they can go ahead.
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只要看這些影片就好。無聊了可以隨時關掉
可以在自己想要的時間,用自己想要的速度看
03:00
They can watch at their own time and pace.
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而最少人想到的是
03:02
Probably the least-appreciated aspect of this
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在你第一次
03:07
is the notion that the very first time
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第一次
03:09
that you're trying to get your brain around a new concept,
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在你的大腦嘗試理解一個新概念時
03:13
the very last thing you need
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你最不需要的事情就是
03:15
is another human being saying, "Do you understand this?"
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另外一個人在你旁邊說“到底懂了沒有?”
03:18
And that's what was happening
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但這就是我和我表弟互動時發生的
03:19
with the interaction with my cousins before,
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03:21
and now they can just do it in the intimacy of their own room.
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現在他們可以
在自己的房間看
03:28
The other thing that happened is --
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另外一件事就是
03:30
I put them on YouTube just --
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但我把影片放到 YouTube 上時
03:33
I saw no reason to make it private,
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我覺得沒必要隱藏
03:35
so I let other people watch it,
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大家都可以看
03:37
and then people started stumbling on it,
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有人發現這些影片
03:39
and I started getting some comments and some letters
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我開始收到留言和一些信件
03:42
and all sorts of feedback
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還有來自世界各地
很多不同的回應
03:45
from random people around the world.
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03:46
These are just a few.
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這些是其中一些
03:49
This is actually from one of the original calculus videos.
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這個回應是給最早的那些微積分影片的
有人在 Youtube
03:53
Someone wrote it on YouTube, it was a YouTube comment:
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上留言到
03:56
"First time I smiled doing a derivative."
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“這是我第一次算導數會微笑”
03:59
(Laughter)
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(笑聲)
等等
04:02
Let's pause here.
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這個人在算導數
04:04
This person did a derivative,
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04:05
and then they smiled.
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然後他微笑了
04:07
(Laughter)
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04:08
In response to that same comment --
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然後有人回應了這個微笑的人
04:10
this is on the thread, you can go on YouTube and look at the comments --
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你可以上 YouTube 去看這些回應
另外一個人說“我也是”
04:14
someone else wrote: "Same thing here.
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04:15
I actually got a natural high and a good mood for the entire day,
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那天我整個人飄飄欲仙
以前我
04:19
since I remember seeing all of this matrix text in class,
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在課堂上看見這些天書
04:23
and here I'm all like, 'I know kung fu.'"
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現在我好像學得了絕世功夫
04:26
(Laughter)
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(笑聲)
04:30
We get a lot of feedback along those lines.
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我們得到了很多這種回應
04:32
This clearly was helping people.
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很明顯地,這幫助了很多人
04:34
But then, as the viewership kept growing and kept growing,
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觀影人數越來越多
我開始收到這些信件
04:38
I started getting letters from people,
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04:40
and it was starting to become clear
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漸漸的你開始明白
04:42
that it was more than just a nice-to-have.
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這不只是輔助教材
04:44
This is just an excerpt from one of those letters:
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這裡有一封信
是這樣說的
04:48
"My 12 year-old son has autism,
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“我12歲的自閉症兒子
04:50
and has had a terrible time with math.
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對數學一籌莫展
我們試過所有方法
04:53
We have tried everything,
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04:54
viewed everything, bought everything.
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看過所有書籍,買了所有教材
04:56
We stumbled on your video on decimals, and it got through.
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我們發現了你的十進位影片,他看懂了
04:59
Then we went on to the dreaded fractions.
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於是我們播可怕的分數影片,他又懂了
05:01
Again, he got it.
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我們不可置信
05:03
We could not believe it.
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05:04
He is so excited."
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他超興奮的。”
05:06
And so you can imagine,
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你可以想像
05:07
here I was, an analyst at a hedge fund --
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身為一位避險基金分析師
05:11
it was very strange for me to do something of social value.
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做一些有益社會的事對我來說非常陌生
(笑聲)
05:15
(Laughter)
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05:17
(Applause)
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(掌聲)
05:23
But I was excited, so I kept going.
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但我很興奮,於是我繼續製作這些影片
05:27
And then a few other things started to dawn on me;
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一些其它事情開始發生了
05:29
that not only would it help my cousins right now,
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這些影片不但能幫助我表弟
05:32
or these people who were sending letters,
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和這些寫信給我的人
05:34
but that this content will never grow old,
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而且這些影片永遠不會變老
它可以幫助他們的孩子
05:37
that it could help their kids or their grandkids.
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或孫子
05:40
If Isaac Newton had done YouTube videos on calculus,
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如果牛頓
上傳一個微積分的 YouTube 影片
就用不著我了
05:45
I wouldn't have to.
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05:46
(Laughter)
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(笑聲)
05:48
Assuming he was good. We don't know.
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當然,那得要他很會教,我們無從得知
05:51
(Laughter)
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(笑聲)
05:53
The other thing that happened -- and even at this point, I said,
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就算發生了這些事
就算到了那個時候,我仍想“好吧,或許它是不錯的輔助教材
05:56
"OK, maybe it's a good supplement. It's good for motivated students.
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很能激勵學生
給在家上課的學生也很有用”
06:00
It's good for maybe home-schoolers."
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但我從來沒想到
06:02
But I didn't think it would somehow penetrate the classroom.
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它竟然能打進課堂
06:05
Then I started getting letters from teachers,
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但我開始收到老師的信
06:07
and the teachers would write, saying,
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這些老師寫著
06:09
"We've used your videos to flip the classroom.
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“我們在課堂上播你的影片
06:11
You've given the lectures, so now what we do --"
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你已經解釋過了,那我們呢⋯⋯”
06:14
And this could happen in every classroom in America tomorrow --
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說真的,這件事可以明天就在美國每個學校發生
06:17
"what I do is I assign the lectures for homework,
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“⋯⋯ 我們只要把看影片變成他們的功課
然後把以前的回家作業
06:21
and what used to be homework,
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變成在課堂上的習作”
06:23
I now have the students doing in the classroom."
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我想要在這裡打個岔 -
06:26
And I want to pause here --
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06:28
(Applause)
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(掌聲)
我想在這裡打個岔
06:33
I want to pause here, because there's a couple of interesting things.
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因為這裡有幾項有趣的事
06:36
One, when those teachers are doing that,
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一,當這些老師開始這麼做的時候
06:38
there's the obvious benefit --
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比較明顯的好處是
06:40
the benefit that now their students
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現在這些學生
06:42
can enjoy the videos in the way that my cousins did,
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都可以像我的表弟一樣
用自己的節奏學習
06:45
they can pause, repeat at their own pace, at their own time.
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隨時暫停或復習
06:48
But the more interesting thing -- and this is the unintuitive thing
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但更有趣的事是
當你把科技帶到課堂裡
06:51
when you talk about technology in the classroom --
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便實現了因材施教的理想
06:54
by removing the one-size-fits-all lecture from the classroom,
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學生們可以回家用自己的方式學習
06:57
and letting students have a self-paced lecture at home,
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當他們到了課堂,開始做作業
07:00
then when you go to the classroom,
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07:01
letting them do work, having the teacher walk around,
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老師可以作為輔助
07:04
having the peers actually be able to interact with each other,
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甚至讓學生互相教導學習
07:07
these teachers have used technology to humanize the classroom.
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這些老師用科技
把教室變得更人性
過去的課堂經驗是很去人性的
07:13
They took a fundamentally dehumanizing experience --
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07:15
30 kids with their fingers on their lips,
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30個孩子不許開口
不許和彼此交談
07:18
not allowed to interact with each other.
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無論一個老師多優秀
07:20
A teacher, no matter how good,
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07:21
has to give this one-size-fits-all lecture to 30 students --
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都得用一樣的方法
教30個不同的孩子
07:25
blank faces, slightly antagonistic --
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面無表情,還帶著些敵意
07:27
and now it's a human experience,
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現在人性多了
07:29
now they're actually interacting with each other.
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現在他們總算可以交流了
07:31
So once the Khan Academy --
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於是有了 Khan 學院
我辭掉工作
07:34
I quit my job,
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07:35
and we turned into a real organization --
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把學院變成一個真正的組織
07:37
we're a not-for-profit --
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我們是個非營利組織
07:39
the question is, how do we take this to the next level?
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問題是,下一步該怎麼走?
07:42
How do we take what those teachers were doing to its natural conclusion?
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我們該如何幫助這些老師的做法
讓它變得更好?
07:46
And so, what I'm showing over here,
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我現在所要展示的
07:48
these are actual exercises
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都是當時我為了我表弟
07:50
that I started writing for my cousins.
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所做的題目
07:53
The ones I started were much more primitive.
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當時的畫面比較原始
07:55
This is a more competent version of it.
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現在的比較好用
07:58
But the paradigm here is, we'll generate as many questions as you need,
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這個範例所展現的是,我們讓你做許多題目
直到你理解了這個概念
08:02
until you get that concept, until you get 10 in a row.
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直到你連續答對十題
08:05
And the Khan Academy videos are there.
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如果你不知道怎麼做
08:07
You get hints, the actual steps for that problem,
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Khan 學院影片在這
08:09
if you don't know how to do it.
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有提示,還有解題的步驟
08:11
The paradigm here seems like a very simple thing:
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這個範例看上去很簡單:
08:13
10 in a row, you move on.
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十題,然後繼續
08:15
But it's fundamentally different
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它和現在的教室有所不同
08:16
than what's happening in classrooms right now.
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在傳統的教室裡
08:19
In a traditional classroom,
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08:20
you have homework, lecture, homework, lecture,
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你有一些作業
作業、講課、作業、講課
08:24
and then you have a snapshot exam.
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然後你有個短短的考試
08:26
And that exam, whether you get a 70 percent, an 80 percent,
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無論你在考試裡拿了70分、80分
90或95分
08:29
a 90 percent or a 95 percent,
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08:31
the class moves on to the next topic.
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課堂都會繼續
08:33
And even that 95 percent student --
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但就算你拿了95分
08:35
what was the five percent they didn't know?
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他不知道的那5分怎麼辦
08:37
Maybe they didn't know what happens when you raise something to the zeroth power.
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或許他們不知道你把數提到零功率的時候會怎樣
但你已經開始講解下個概念了
08:41
Then you build on that in the next concept.
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那就像是
08:43
That's analogous to -- imagine learning to ride a bicycle.
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想像你在學騎腳踏車
我事先和你講解
08:47
Maybe I give you a lecture ahead of time,
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08:49
and I give you a bicycle for two weeks, then I come back after two weeks,
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然後把腳踏車給你兩個禮拜
兩個禮拜後我回來說
08:53
and say, "Well, let's see. You're having trouble taking left turns.
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“我看看,你左轉有問題
不太停的下來
08:57
You can't quite stop. You're an 80 percent bicyclist."
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你是個80分的旗手”
然後我在你額頭上打個C印
09:00
So I put a big "C" stamp on your forehead --
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09:02
(Laughter)
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09:03
and then I say, "Here's a unicycle."
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然後說“這是你的單輪車。”
09:05
(Laughter)
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09:06
But as ridiculous as that sounds,
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就算它聽上去很可笑
09:08
that's exactly what's happening in our classrooms right now.
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這就是每天
發生在我們教室裡的事
09:12
And the idea is you fast forward
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把情況往前快轉
09:14
and good students start failing algebra all of the sudden,
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好學生突然當掉了代數
09:17
and start failing calculus all of the sudden,
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當掉微積分
09:20
despite being smart, despite having good teachers,
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就算他們聰明,又有好老師
09:22
and it's usually because they have these Swiss cheese gaps
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往往是來自那些打基礎時
造成的那些瑞士乳酪孔隙一樣的差距
09:25
that kept building throughout their foundation.
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我們的模式是
09:27
So our model is: learn math the way you'd learn anything,
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用你學其它事物的方式學習數學
就像你學騎腳踏車一樣
09:31
like riding a bicycle.
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09:32
Stay on that bicycle. Fall off that bicycle.
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坐在腳踏車上,從腳踏車上跌下
09:35
Do it as long as necessary, until you have mastery.
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直到你真正學會為止
09:38
The traditional model,
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傳統的模式
09:40
it penalizes you for experimentation and failure,
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懲罰學生的嘗試和失敗
09:42
but it does not expect mastery.
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它不期待你完全理解
09:44
We encourage you to experiment. We encourage you to fail.
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我們鼓勵你實驗,鼓勵你失敗
09:47
But we do expect mastery.
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但我們要你完全理解掌控
這是另外一個課題
09:51
This is just another one of the modules.
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這是三角習題
09:53
This is trigonometry.
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09:54
This is shifting and reflecting functions.
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這是移位和反射函數
09:57
And they all fit together.
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他們全都有關聯
09:59
We have about 90 of these right now.
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我們現在大概有90個這樣的課程
10:01
You can go to the site right now,
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你可以自己上網站看,全免費,沒有要賣甚麼
10:02
it's all free, not trying to sell anything.
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10:04
But the general idea is that they all fit into this knowledge map.
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重點是他們全都包含在這知識地圖裡
上面那個最高的結是個位數加法
10:08
That top node right there, that's literally single-digit addition,
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像一加一等於二
10:11
it's like one plus one is equal to two.
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10:13
The paradigm is, once you get 10 in a row on that,
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它的用法是,一旦你連續答對十題
10:15
it keeps forwarding you to more and more advanced modules.
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你就會進階到下一個課題
如果你這張知識地圖持續前進
10:19
Further down the knowledge map,
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便會進入更進階的演算
10:22
we're getting into more advanced arithmetic.
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10:24
Further down, you start getting into pre-algebra and early algebra.
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再往下去,你就會到前代數和早期代數
10:27
Further down, you start getting into algebra one, algebra two,
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再下去,就有代數一
10:31
a little bit of precalculus.
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一些早期微積分
10:33
And the idea is, from this we can actually teach everything --
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我們的想法是,我們可以教所有東西
10:36
well, everything that can be taught in this type of a framework.
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至少那些所有可以教的東西
在這個框架下
10:40
So you can imagine -- and this is what we are working on --
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你可以想像 - 這是我們現在在做的 -
從這個知識地圖
10:43
from this knowledge map, you have logic, you have computer programming,
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你有邏輯、寫電腦程式
10:46
you have grammar, you have genetics,
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文法、遺傳學
10:49
all based off of that core of, if you know this and that,
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中心思想是
如果你懂了這個和那個
10:52
now you're ready for this next concept.
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就已經準備好理解下一個概念了
10:55
Now that can work well for an individual learner,
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當然你可以自己學
10:58
and I encourage you to do it with your kids,
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但是我鼓勵家長和孩子一起
11:00
but I also encourage everyone in the audience to do it yourself.
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我也鼓勵在場的個位觀眾自己試試
可以改變晚餐桌上的一些習慣
11:03
It'll change what happens at the dinner table.
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11:05
But what we want to do
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但我們想做的是
11:06
is use the natural conclusion of the flipping of the classroom
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應用這些老師寫信給我的內容
11:09
that those early teachers had emailed me about.
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來改變現在的教育。
11:12
And so what I'm showing you here,
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我現在要給你看的是
11:13
this is data from a pilot in the Los Altos school district,
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從洛杉磯 Los Altos 學區來的數據
11:16
where they took two fifth-grade classes and two seventh-grade classes,
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他們帶兩班五年級和兩班七年級學生
完全遺棄他們過去的數學課程
11:20
and completely gutted their old math curriculum.
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這些學生不用課本
11:22
These kids aren't using textbooks, or getting one-size-fits-all lectures.
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不用千篇一律的課堂解說
11:25
They're doing Khan Academy, that software, for roughly half of their math class.
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他們加入 Khan 學院
用半節課來用這套軟體
11:29
I want to be clear: we don't view this as a complete math education.
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我必須要說清楚,我們不是說這是完整的數學教育
它所做的是 - 就像在 Los Atlos 所做的一樣
11:33
What it does is -- this is what's happening in Los Altos --
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它讓你有自由時間
11:36
it frees up time -- it's the blocking and tackling,
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這是針對問題解答
11:38
making sure you know how to move through a system of equations,
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確定你知道如何在這些方程式系統中來去自如
你還有時間可以模擬、玩遊戲
11:41
and it frees up time for the simulations, for the games,
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學機械、做機器人
11:44
for the mechanics, for the robot-building,
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用影子估算山究竟有多高
11:46
for the estimating how high that hill is based on its shadow.
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這個模式是,老師走進教室
11:49
And so the paradigm is the teacher walks in every day,
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11:51
every kid works at their own pace --
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每個學生用自己的速度學習
11:53
this is actually a live dashboard from the Los Altos school district --
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這是 Los Atlos 學區的測量表
數據在這裡一目瞭然
11:57
and they look at this dashboard.
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11:58
Every row is a student.
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每一列是一個學生
12:00
Every column is one of those concepts.
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每一行是一個概念
12:02
Green means the student's already proficient.
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綠色代表這個學生已經通過了
12:04
Blue means they're working on it -- no need to worry.
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2524
藍色代表他們還在繼續學習 - 不用擔心
12:06
Red means they're stuck.
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紅色代表他們有困難了
12:08
And what the teacher does is literally just say,
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而教師所該做的不過是
12:11
"Let me intervene on the red kids."
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“讓我看看這些紅色的學生遇見了甚麼困難”
12:13
Or even better, "Let me get one of the green kids,
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更好的是“讓我把這些綠色的學生
那些已經學會的學生
12:16
who are already proficient in that concept,
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2046
送到前線
12:18
to be the first line of attack, and actually tutor their peer."
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教導他們的同學。”
12:23
(Applause)
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(掌聲)
12:28
Now, I come from a very data-centric reality,
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這是以數據為主的
12:32
so we don't want that teacher to even go and intervene
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我們不希望老師去介入
或問學生奇怪的問題像
12:35
and have to ask the kid awkward questions:
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“你有甚麼不懂的嗎?”或“你到底懂甚麼?”
12:37
"What don't you understand? What do you understand?" and all the rest.
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等等的。
12:40
So our paradigm is to arm teachers with as much data as possible --
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我們的軟體是用數據來幫助這些老師
12:43
data that, in any other field, is expected,
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這些在金融、市場或製造業
12:45
in finance, marketing, manufacturing --
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都有的真實數據
12:47
so the teachers can diagnose what's wrong with the students
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這些老師可以由此看出他們的學生有甚麼困難
12:50
so they can make their interaction as productive as possible.
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讓他們的互動更有效率
12:53
Now teachers know exactly what the students have been up to,
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現在這些老師知道他們的學生都做了些甚麼
12:56
how long they've spent each day, what videos they've watched,
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他們一天花了多少時間、看了多少影片
他們甚麼時候暫停、停止了甚麼影片
12:59
when did they pause the videos, what did they stop watching,
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他們做了甚麼習題
13:02
what exercises are they using, what have they focused on?
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他們的學習重心是甚麼?
13:04
The outer circle shows what exercises they were focused on.
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外面的圈顯示他們專注於那些習題
13:07
The inner circle shows the videos they're focused on.
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裡面的圈顯示他們看了甚麼影片
然後數據變得更仔細
13:11
The data gets pretty granular,
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1437
13:12
so you can see the exact problems the student got right or wrong.
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你可以看到學生做對和做錯的問題
13:15
Red is wrong, blue is right.
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紅色是錯了,藍色是對了
13:17
The leftmost question is the first one the student attempted.
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左邊的問題是學生第一個嘗試的問題
他們在這裡看影片
13:20
They watched the video over there.
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然後終於,他們答對了十個問題
13:22
And you can see, eventually they were able to get 10 in a row.
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就像你可以看到他們慢慢靠向最後那十個問題
13:25
It's almost like you can see them learning over those last 10 problems.
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他們的速度更快了
13:28
They also got faster -- the height is how long it took them.
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高度是他們的答題時間
13:33
When you talk about self-paced learning, it makes sense for everyone --
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當你談到自主學習
大家都聽得懂 - 因材施教
13:38
in education-speak, "differentiated learning" --
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13:40
but it's kind of crazy, what happens when you see it in a classroom.
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但親眼教室看到時還是很令人吃驚
因為每一次
13:44
Because every time we've done this, in every classroom we've done,
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在每一個我們實驗的課堂
13:48
over and over again, if you go five days into it,
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一次又一次,五天下來
13:50
there's a group of kids who've raced ahead
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一群孩子往前直衝
一群孩子較為緩慢
13:53
and a group who are a little bit slower.
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13:54
In a traditional model, in a snapshot assessment,
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在過去的模式,如果你用以前的衡量方法
你會說“這些是聰明的孩子,這些是遲緩的孩子
13:57
you say, "These are the gifted kids, these are the slow kids.
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或許他們應該用不同的方式衡量
14:00
Maybe they should be tracked differently.
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或許我們應該把他們放到不同班級。”
14:02
Maybe we should put them in different classes."
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但一旦你讓學生用他們自己的速率學習
14:04
But when you let students work at their own pace --
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我們一次又一次的見證
14:06
we see it over and over again --
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14:08
you see students who took a little bit extra time
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那些在某些習題上
花較多時間的學生
14:11
on one concept or the other,
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14:12
but once they get through that concept,
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只要搞懂了那個概念
便順利向前。
14:15
they just race ahead.
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14:16
And so the same kids that you thought were slow six weeks ago,
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六個禮拜前覺得緩慢的學生
14:19
you now would think are gifted.
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現在你會覺得他們很聰明
14:21
And we're seeing it over and over again.
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我們真的一次又一次地看見這種狀況
14:23
It makes you really wonder
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不禁讓人想到
14:25
how much all of the labels maybe a lot of us have benefited from
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我們身上所貼的這些好標簽
14:28
were really just due to a coincidence of time.
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到底有多少不過來自偶然
14:34
Now as valuable as something like this is in a district like Los Altos,
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像這樣珍貴的發現
在 Los Altos 這樣的學區
14:39
our goal is to use technology
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我們的目標是用科技帶回人性
14:41
to humanize, not just in Los Altos, but on a global scale,
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不只在 Los Altos,更在全球各地
14:44
what's happening in education.
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我們的教育情況究竟如何
14:46
And that brings up an interesting point.
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事實上,這讓我們看見一些有趣的點
許多有關人性教育的討論
14:49
A lot of the effort in humanizing the classroom
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14:51
is focused on student-to-teacher ratios.
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都注重老師和學生的比例上
14:54
In our mind, the relevant metric is:
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在我們看來,更有效的衡量方法
應該是以學生得到了老師多少時間
14:57
student-to-valuable-human-time- with-the-teacher ratio.
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作為衡量
15:01
So in a traditional model, most of the teacher's time
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在傳統模式裡,老師大部分的時間
15:03
is spent doing lectures and grading and whatnot.
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都在講課、改作業、打分數
15:06
Maybe five percent of their time is sitting next to students
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或許只有百分之五的時間
真的和學生一起相處
15:09
and working with them.
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15:10
Now, 100 percent of their time is.
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現在他們可以有百分百的注意力
15:12
So once again, using technology, not just flipping the classroom,
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我要再說一次,科技不但讓課堂更有趣
15:15
you're humanizing the classroom, I'd argue,
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也讓課堂更人性
至少增加五到十倍
15:18
by a factor of five or 10.
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2014
15:20
As valuable as that is in Los Altos,
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就像在 Los Altos 所呈現的
15:22
imagine what it does to the adult learner,
335
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2041
想像這會對那些因為羞於承認
15:24
who's embarrassed to go back and learn stuff
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而不敢回去學習的成年學生
15:26
they should have known before going back to college.
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帶來多大的幫助
想像它會對
15:29
Imagine what it does to a street kid in Calcutta,
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5933
加爾各答的街童帶來甚麼樣的改變
15:34
who has to help his family during the day,
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他們因為要工作幫助家裡
15:37
and that's the reason he or she can't go to school.
340
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2406
而無法上學
現在他們可以一天花兩小時補救
15:40
Now they can spend two hours a day and remediate,
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15:42
or get up to speed and not feel embarrassed
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或迎頭趕過而不用因為他們的程度
而感到困窘
15:45
about what they do or don't know.
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15:47
Now imagine what happens where --
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想像那些
15:49
we talked about the peers teaching each other
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同儕在教室裡互相學習的
狀況
15:52
inside of a classroom.
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這都在同一個體系裡
15:54
But this is all one system.
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15:55
There's no reason why you can't have that peer-to-peer tutoring
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沒甚麼理由你不能把
這種同儕學習的形態
15:59
beyond that one classroom.
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延伸到教室外
16:01
Imagine what happens if that student in Calcutta
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想像一個加爾各答的學生
16:04
all of the sudden can tutor your son,
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突然開始教你的兒子
16:06
or your son can tutor that kid in Calcutta.
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或是你的兒子開始教他
16:09
And I think what you'll see emerging
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我想這就是你會在世界如教室
16:11
is this notion of a global one-world classroom.
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教室如世界的今日所看到的情況
16:17
And that's essentially what we're trying to build.
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而這就是我們所想要建構的
16:21
Thank you.
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謝謝各位
16:22
(Applause)
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(掌聲)
16:31
Bill Gates: I'll ask about two or three questions.
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16:33
Salman Khan: Oh, OK.
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16:35
(Applause continues)
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17:02
(Applause ends)
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17:04
BG: I've seen some things you're doing in the system,
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比爾蓋茲:我有看過系統裡有些與
17:07
that have to do with motivation and feedback --
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動力和反饋有關的機制
17:09
energy points, merit badges.
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精神點數、榮譽胸章
17:12
Tell me what you're thinking there.
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告訴我那是甚麼回事?
17:14
SK: Oh yeah. No, we have an awesome team working on it.
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SK: 是的,現在我們有一組很棒的人正在開發它
17:16
I have to be clear, it's not just me anymore.
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我要說清楚,現在不只有我
我仍然錄製所有的影片
17:19
I'm still doing all the videos,
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17:20
but we have a rock-star team doing the software.
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但我們有一組超贊的人在開發軟體
17:22
We've put a bunch of game mechanics in there, where you get badges,
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我們設計了很多遊戲機制
學生們可以拿獎章
17:26
we're going to start having leader boards by area, you get points.
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我們還要設計一個地區排行榜,讓他們拿點數
17:29
It's actually been pretty interesting.
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非常有趣
17:31
Just the wording of the badging,
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就算只是獎章的名稱或是一些點數
17:32
or how many points you get for doing something,
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都可以看到整個系統裡的
17:35
we see on a system-wide basis,
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17:36
like tens of thousands of fifth-graders or sixth-graders
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幾萬個五年級六年級生
轉換方向
17:39
going one direction or another, depending what badge you give them.
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就看你給他們甚麼獎章
17:42
(Laughter)
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(笑聲)
17:44
BG: And the collaboration you're doing with Los Altos,
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蓋茲:你和 Los Altos 的合作
17:47
how did that come about?
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是怎麼開始的?
17:49
SK: Los Altos, it was kind of crazy.
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SK: Los Altos,那真是有點瘋狂
說真的,我沒有預期它會被用在課堂裡
17:52
Once again, I didn't expect it to be used in classrooms.
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17:55
Someone from their board came and said,
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有時候他們的理事會來問我
17:57
"What would you do if you had carte Blanche in a classroom?"
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“如果我把學校全權授權與你,你會怎麼做?”
我會說“我會讓所有學生用這個軟體自主學習
18:00
I said, "Well, every student would work at their own pace,
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然後我們會給一個數據表”
18:03
on something like this, we'd give a dashboard."
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他們會說“嗯這有點激進,我們得好好考慮。”
18:05
They said, "This is kind of radical. We have to think about it."
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我和其他組員會想
18:08
Me and the rest of the team were like, "They're never going to want to do this."
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“他們永遠不可能想試的。”
結果隔天他們就回來問“兩個禮拜內開始可以嗎?”
18:12
But literally the next day they were like, "Can you start in two weeks?"
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(笑聲)
18:15
(Laughter)
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1451
蓋茲:所以你們現在用五年級學生測試嗎?
18:17
BG: So fifth-grade math is where that's going on right now?
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SK: 是兩堂五年級和兩堂七年級生
18:20
SK: It's two fifth-grade classes and two seventh-grade classes.
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整個學區
18:23
They're doing it at the district level.
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我想他們對於可以追蹤學生的進度感到很興奮
18:25
I think what they're excited about is they can follow these kids,
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這不只是校內的事情
18:28
not only in school; on Christmas, we saw some of the kids were doing it.
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3413
我們看到有些學生甚至在聖誕節也在做題
18:31
We can track everything, track them as they go through the entire district.
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我們可以追蹤他們的學習狀態
他們也可以用學區來分別追蹤這些狀態
18:35
Through the summers, as they go from one teacher to the next,
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暑假過去,在他們換老師的時候
你有這些持續的數據
18:38
you have this continuity of data that even at the district level, they can see.
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3800
就算學區層次也能看到
蓋茲:所以我們剛剛所看到的這些
18:42
BG: So some of those views we saw were for the teacher
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3200
是給老師
18:45
to go in and track actually what's going on with those kids.
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用來追蹤學生的進度
18:48
So you're getting feedback on those teacher views
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你有老師對這些數據
的看法嗎?
18:51
to see what they think they need?
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1713
18:53
SK: Oh yeah. Most of those were specs by the teachers.
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4356
SK: 有的,大部分的這些規格都來自老師的意見
我們也有一些是為學生做的,讓他們可以看到他們的數據
18:57
We made some of those for students so they could see their data,
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3010
但在設計過程中我們和這些老師保持緊密的合作關係
19:00
but we have a very tight design loop with the teachers themselves.
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3112
他們會說“這不錯,但⋯⋯”
19:03
And they're saying, "Hey, this is nice, but --"
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2224
19:05
Like that focus graph, a lot of the teachers said,
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2389
就像這個重心圖,許多老師說
“我覺得許多孩子都會跳躍學習
19:08
"I have a feeling a lot of the kids are jumping around
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而不會把重心放在一個主題上”
19:10
and not focusing on one topic."
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於是我們做了重心圖
19:12
So we made that focus diagram.
410
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1473
19:13
So it's all been teacher-driven. It's been pretty crazy.
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2640
這是非常以教師為重心的設計
非常瘋狂
19:16
BG: Is this ready for prime time?
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1573
蓋茲:這已經可以使用了嗎?
19:18
Do you think a lot of classes next school year should try this thing out?
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你覺得明年是否有許多學校應該試試這個
19:22
SK: Yeah, it's ready.
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1158
SK:
19:23
We've got a million people on the site already,
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我們已經有幾百萬人在使用網站
19:26
so we can handle a few more.
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我們還可以承受一些
(笑聲)
19:29
(Laughter)
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19:31
No, no reason why it really can't happen
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真的沒甚麼理由
19:33
in every classroom in America tomorrow.
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2610
明天美國的每個教室都可以使用它
19:35
BG: And the vision of the tutoring thing.
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2480
蓋茲:所以這個教學的
19:38
The idea there is, if I'm confused about a topic,
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2838
如果我不明白某個主題
19:41
somehow right in the user interface,
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2152
在用戶界面中
19:43
I'd find people who are volunteering,
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我就能找到志願者
19:45
maybe see their reputation,
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1738
看看別人對他的評語
19:47
and I could schedule and connect up with those people?
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3177
然後我可以和他約時間?
19:50
SK: Absolutely. And this is something I recommend everyone in this audience do.
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SK: 沒錯。我建議在座的
每個人都這麼做。
19:54
Those dashboards the teachers have, you can go log in right now
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老師有的這些平台,你也可以登入
19:57
and you can essentially become a coach
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你可以成為你的孩子
19:59
for your kids, your nephews, your cousins,
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姪子或表弟妹的教練
20:02
or maybe some kids at the Boys and Girls Club.
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甚至男孩或女孩社團的教練
你也可以開始做個家教、教練
20:05
And yeah, you can start becoming a mentor, a tutor,
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2532
20:07
really immediately.
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馬上就行
20:09
But yeah, it's all there.
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都已經好了。
20:11
BG: Well, it's amazing.
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蓋茲:實在太好了
20:12
I think you just got a glimpse of the future of education.
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我想你正瞥見了教育的未來
20:15
BG: Thank you. SK: Thank you.
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謝謝你(SK:謝謝你)
20:17
(Applause)
437
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(掌聲)
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