Using unanswered questions to teach - John Gensic

13,439 views ・ 2013-06-20

TED-Ed


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翻译人员: Zhimin Lin 校对人员: Mingyu Cui
00:05
Carol Dweck, who is now at Stanford,
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现任教于斯坦福的卡罗尔·德威克
00:08
conducted a research experiment
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进行了一项研究实验。
00:09
where she compared 7th graders in two different groups.
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她对两组七年级的学生进行了比较,
00:13
One group, she taught study skills to,
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她教一组学习技巧,
00:15
and the other group,
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而给另外一组
00:16
they taught a mini-neuroscience class
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上一门关于他们的大脑如何工作的
00:18
about how their brain worked.
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迷你神经学课程。
00:19
They followed those two groups
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他们对这两组学生
00:21
throughout their middle school math grades
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的初中数学成绩进行了持续跟踪,
00:23
and noticed that the group
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并注意到上了迷你神经学课程的那一组
00:24
who had the mini-neuroscience course
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获得的数学分数
00:26
was much more successful in their math grades
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要比使用传统学习方法的一组高得多,
00:30
than the group that had the conventional study skills,
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00:33
like being organized
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他们更有条理,
00:35
and using note cards.
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而且会使用笔记卡片。
00:36
The reason, they believe,
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他们相信
00:38
that the group had the mini-neuroscience course
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上了迷你神经科学课程那一组
00:40
did so much better
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表现好这么多的原因
00:41
is that they were picturing the formations
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是他们能想象学习时
00:44
and the connections in their brains occurring
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大脑中知识的构成和联系。
00:46
while they were learning.
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00:48
They were also able to have a certain level of resilience,
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他们也获得了一定程度的韧性,
00:51
knowing that their brain was more of a muscle
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通过了解他们的大脑更像是一块肌肉
00:54
and not a stone that couldn't grow any larger.
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而不是一块没有任何可扩展性的石头。
00:57
Having this resilience,
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有了这种韧性,
00:59
having students understand
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以及明白
01:01
that their brains can continue to grow,
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他们的大脑能持续发育,
01:03
allows them the confidence to struggle with situations,
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这些学生就获得了让他们在困境中
01:07
to wrestle out that information
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努力获得信息、
01:09
to come to deeper understanding.
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深入思考的信心。
01:10
So, how does this look in my classroom?
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而这在我的课堂上是怎样进行的?
01:13
How do I attempt to get students
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我如何尝试让学生
01:14
to struggle with information and wrestle with it
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竭尽全力获取信息并全力对付它们
01:17
so they come up with deeper levels of understanding?
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来获得更深层次的思考呢?
01:19
Primarily, I use unanswered questions.
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我主要使用开放性问题。
01:22
For example, I'll give students a jar
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举个例子,我会给学生一个玻璃罐
01:25
and say it's 500 grams,
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并说明它的质量是500克,
01:27
and inside that sealed jar
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而且在这密封的罐子里
01:28
is a moist paper towel with about six to seven seeds.
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有一张湿面巾纸和大约六七颗种子。
01:33
What do you think will happen
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你认为容器的质量
01:34
to the mass of the container
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随着种子的生长
01:36
as those seeds begin to grow?
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会发生什么变化?
01:38
And the students will then write
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然后学生们会在小半张纸上
01:40
on a little half-sheet of paper
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写下他们认为会发生的情况以及原因。
01:41
what they think is going to happen and why.
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01:44
Depending on the class,
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取决于具体的课程,
01:46
I will have the students sometimes work in partners
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我有时会让学生配对合作
01:48
to kind of combine ideas,
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去组合他们的想法,
01:50
see what they think of each other's reasons,
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看看他们如何看待对方的理由,
01:52
maybe work in groups of four
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或许在四人小组内合作
01:54
and then groups of eight
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01:54
and come to consensus.
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然后是八人小组,
然后达成共识。
01:56
But, sometimes, I'll have the students pass in
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但是,有时我会让学生上交
01:58
all that information without conversing about it,
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所有信息而不进行任何讨论,
02:01
and I will then read their explanations
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之后我会读出他们的解释
02:05
so that they are anonymously presented ideas
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因此这些想法的公开是匿名的,
02:09
that no student can rely upon
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这使得没有人能够依靠
02:11
the other smart students
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其它出色的学生
02:12
to say, 'Oh, I agree with Sally
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然后说:“噢,我同意Sally的想法
02:15
because she's always got the right answer.'
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因为她的答案总是对的。”
02:17
That rarely happens in my class.
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这种情况在我的课堂中极少出现。
02:20
At this point, I will probably stop the conversation
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这个时候,在我大声读出这些内容后,
02:23
after I've read these out loud
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我可能会停止讨论
02:24
and leave students wondering.
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让学生自己思索。
02:27
Wondering, what is the right answer?
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思考,哪个是正确的答案?
02:29
What evidence is good evidence?
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什么样的证据是好的证据?
02:32
Because I want them,
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因为我希望
02:33
when they leave the classroom,
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当他们离开教室时,
02:35
to continue to want to know more,
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能继续保持求知欲,
02:37
to continue to want to make more connections.
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继续想知道更多,想建立更多的联系。
02:40
So, in addition to unanswered questions,
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因此,除了开放性问题之外,
02:43
I will often pose problems and projects
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我还经常让学生们研究各种问题和项目。
02:45
for students to work on.
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02:47
And, when I have them work on
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当我让他们
02:48
these problems and projects,
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研究这些问题和项目时,
02:50
I'll give them about 15 to 20 minutes to brainstorm
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我会给他们15到20分钟进行头脑风暴,
02:53
how to solve the problem
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让他们讨论如何解决这个问题
02:55
or how to go about completing the project.
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或如何完成这个项目。
02:57
And this 15 to 20 minutes happens
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这15到20分钟发生在
02:59
well before I expect a lot of work
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对这个项目投入大量精力之前。
03:01
to be done on the project.
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我不想让他们尽力去取得很大的进展,
03:03
I don't want them to try to produce too much
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因为我希望他们能尽量
03:05
because I want them to try to figure out in their brains,
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在脑海中厘清思路,
03:08
give themselves a chance
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让他们自己有机会
03:10
to struggle with the information overnight,
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在进行日常活动的同时
03:12
while they go about their daily activities.
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花一个晚上去吃透这些信息。
03:14
For example, I might give a project
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比如,我会提出一个项目,
03:16
where you need to explain or teach a 6th grader
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其中你需要向六年级学生解释或传授
03:21
the simple concept of endosymbiosis.
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胞内共生这一简单概念。
03:24
And the students then have
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这些学生面临一大堆
03:27
a whole bunch of questions generated
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关于这个项目的问题。
03:30
related to this project.
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03:31
They have things that they need to know
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他们需要从我这里
03:33
from me,
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或其它资源去了解许多东西。
03:34
from other resources.
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03:35
But I have not given them
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但是我并没有告诉他们
03:37
the questions and the answers to memorize,
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具体的需要记忆的问题和答案。
03:40
their brain is actively seeking out
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他们的大脑在活跃地搜寻
03:42
the understanding of this concept
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对这一概念的理解,
03:44
so that they can teach it to others.
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这样他们就向别人解释它。
03:46
We would like to, as teachers,
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我们作为老师,
03:48
think that students love everything that we teach them,
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总希望觉得学生热爱我们教给他们的一切,
03:50
and we think that they understand everything
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而且我们认为他们了解这一切
03:53
and want to engage with our content
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并希望将课余时间投入到我们这些内容中。
03:55
outside of the school day.
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03:58
Students don't do that.
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可是学生们从不这么想。
04:00
Most students don't do that.
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大多数学生如此。
04:02
So, through mass one-way text messaging,
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因此,通过大量单向的短信,
04:04
I'm able to resend them the question
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我可以再次给他们发送
04:08
or the topic from that day.
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当天涉及的问题和主题,
04:10
To get them to re-engage
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来让他们再一次接触这些内容,
04:11
and touch the content one more time.
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04:14
And, hopefully, get that seed planted in their brain
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并且但愿在他们的脑中植下那颗种子,
04:17
so that they want to think about it more,
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于是他们会更多地思考它,
04:19
so that their brains come up with
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会在感到费解的时候
04:21
those "Ah-ha!" moments at obscure times.
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经历恍然大悟的时刻。
04:24
My goal is for students to generate the story,
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我的目标是让学生创造故事,
04:30
their story,
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关于教学内容的
04:31
of the content that I teach.
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他们自己的故事。
04:33
I would love for them
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我希望他们
04:34
to completely understand my story
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能完全地、深入地理解我的故事
04:36
and understand it deeply,
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04:37
but I know if I just get them to understand it
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但是我知道如果我仅仅 用我自己的角度
04:40
as I understand it,
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来向他们阐述的话,
04:42
that will simply ooze out of their brains,
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它们只会被逐渐遗忘,
04:45
and they will not have information and the knowledge
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他们在面对其它情况时
04:48
that is applicable in other situations.
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依然会缺乏可用的信息和知识。
04:51
They will not have knowledge
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他们也不能在拥有知识的基础上
04:53
that they can ask more questions about.
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提出更多的问题。
04:55
They are simply understanding to please me,
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他们只是为了使我满意而学,
04:58
and then it's gone.
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过后就将知识抛到九霄云外。
05:01
"It's not that I'm so smart,
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“不是因为我聪明过人,
05:03
it's just that I stay with problems longer."
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我只是在各种问题上花了更多时间。”
05:06
We, as teachers, need to encourage and facilitate
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我们作为老师,需要鼓励和促使学生
05:10
students staying with problems longer.
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把更多的时间花在各种问题上。
05:13
Thanks.
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谢谢!
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