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  • I'd like to reimagine education.

  • The last year

  • has seen the invention of a new four-letter word.

  • It starts with an M.

  • MOOC: massive open online courses.

  • Many organizations

  • are offering these online courses

  • to students all over the world, in the millions, for free.

  • Anybody who has an Internet connection

  • and the will to learn can access these great courses

  • from excellent universities

  • and get a credential at the end of it.

  • Now, in this discussion today,

  • I'm going to focus

  • on a different aspect of MOOCs.

  • We are taking what we are learning

  • and the technologies we are developing in the large

  • and applying them in the small

  • to create a blended model of education

  • to really reinvent and reimagine

  • what we do in the classroom.

  • Now, our classrooms could use change.

  • So, here's a classroom

  • at this little three-letter institute

  • in the Northeast of America, MIT.

  • And this was a classroom about 50 or 60 years ago,

  • and this is a classroom today.

  • What's changed?

  • The seats are in color.

  • Whoop-de-do.

  • Education really hasn't changed

  • in the past 500 years.

  • The last big innovation in education

  • was the printing press and the textbooks.

  • Everything else has changed around us.

  • You know, from healthcare to transportation,

  • everything is different, but education hasn't changed.

  • It's also been a real issue in terms of access.

  • So what you see here

  • is not a rock concert.

  • And the person you see at the end of the stage

  • is not Madonna.

  • This is a classroom

  • at the Obafemi Awolowo University in Nigeria.

  • Now, we've all heard of distance education,

  • but the students way in the back,

  • 200 feet away from the instructor,

  • I think they are undergoing long-distance education.

  • Now, I really believe

  • that we can transform education,

  • both in quality and scale and access,

  • through technology.

  • For example, at edX,

  • we are trying to transform education

  • through online technologies.

  • Given education has been calcified for 500 years,

  • we really cannot think about reengineering it,

  • micromanaging it.

  • We really have to completely reimagine it.

  • It's like going from ox carts to the airplane.

  • Even the infrastructure has to change.

  • Everything has to change.

  • We need to go from lectures on the blackboard

  • to online exercises, online videos.

  • We have to go to interactive virtual laboratories

  • and gamification.

  • We have to go to completely online grading

  • and peer interaction and discussion boards.

  • Everything really has to change.

  • So at edX and a number of other organizations,

  • we are applying these technologies to education

  • through MOOCs to really increase access to education.

  • And you heard of this example,

  • where, when we launched our very first course --

  • and this was an MIT-hard

  • circuits and electronics course --

  • about a year and a half ago,

  • 155,000 students from 162 countries

  • enrolled in this course.

  • And we had no marketing budget.

  • Now, 155,000 is a big number.

  • This number is bigger

  • than the total number of alumni of MIT

  • in its 150-year history.

  • 7,200 students passed the course,

  • and this was a hard course.

  • 7,200 is also a big number.

  • If I were to teach at MIT two semesters every year,

  • I would have to teach for 40 years

  • before I could teach this many students.

  • Now these large numbers

  • are just one part of the story.

  • So today, I want to discuss a different aspect,

  • the other side of MOOCs,

  • take a different perspective.

  • We are taking what we develop and learn in the large

  • and applying it in the small

  • to the classroom, to create a blended model of learning.

  • But before I go into that, let me tell you a story.

  • When my daughter turned 13, became a teenager,

  • she stopped speaking English,

  • and she began speaking this new language.

  • I call it teen-lish.

  • It's a digital language.

  • It's got two sounds: a grunt and a silence.

  • "Honey, come over for dinner."

  • "Hmm."

  • "Did you hear me?"

  • Silence. (Laughter)

  • "Can you listen to me?"

  • "Hmm."

  • So we had a real issue with communicating,

  • and we were just not communicating,

  • until one day I had this epiphany.

  • I texted her. (Laughter)

  • I got an instant response.

  • I said, no, that must have been by accident.

  • She must have thought, you know,

  • some friend of hers was calling her.

  • So I texted her again. Boom, another response.

  • I said, this is great.

  • And so since then, our life has changed.

  • I text her, she responds.

  • It's just been absolutely great.

  • (Applause)

  • So our millennial generation

  • is built differently.

  • Now, I'm older, and my youthful looks might belie that,

  • but I'm not in the millennial generation.

  • But our kids are really different.

  • The millennial generation is completely comfortable

  • with online technology.

  • So why are we fighting it in the classroom?

  • Let's not fight it. Let's embrace it.

  • In fact, I believe -- and I have two fat thumbs,

  • I can't text very well --

  • but I'm willing to bet that with evolution,

  • our kids and their grandchildren

  • will develop really, really little, itty-bitty thumbs

  • to text much better,

  • that evolution will fix all of that stuff.

  • But what if we embraced technology,

  • embraced the millennial generation's

  • natural predilections,

  • and really think about creating these online technologies,

  • blend them into their lives.

  • So here's what we can do.

  • So rather than driving our kids into a classroom,

  • herding them out there at 8 o'clock in the morning --

  • I hated going to class at 8 o'clock in the morning,

  • so why are we forcing our kids to do that?

  • So instead what you do

  • is you have them watch videos

  • and do interactive exercises

  • in the comfort of their dorm rooms, in their bedroom,

  • in the dining room, in the bathroom,

  • wherever they're most creative.

  • Then they come into the classroom

  • for some in-person interaction.

  • They can have discussions amongst themselves.

  • They can solve problems together.

  • They can work with the professor

  • and have the professor answer their questions.

  • In fact, with edX, when we were teaching our first course

  • on circuits and electronics around the world,

  • this was happening unbeknownst to us.

  • Two high school teachers

  • at the Sant High School in Mongolia

  • had flipped their classroom,

  • and they were using our video lectures

  • and interactive exercises,

  • where the learners in the high school,

  • 15-year-olds, mind you,

  • would go and do these things in their own homes

  • and they would come into class,

  • and as you see from this image here,

  • they would interact with each other

  • and do some physical laboratory work.

  • And the only way we discovered this

  • was they wrote a blog

  • and we happened to stumble upon that blog.

  • We were also doing other pilots.

  • So we did a pilot experimental blended courses,

  • working with San Jose State University in California,

  • again, with the circuits and electronics course.

  • You'll hear that a lot. That course has become

  • sort of like our petri dish of learning.

  • So there, the students would, again,

  • the instructors flipped the classroom,

  • blended online and in person,

  • and the results were staggering.

  • Now don't take these results to the bank just yet.

  • Just wait a little bit longer as we experiment with this some more,

  • but the early results are incredible.

  • So traditionally, semester upon semester,

  • for the past several years, this course,

  • again, a hard course,

  • had a failure rate of about 40 to 41 percent

  • every semester.

  • With this blended class late last year,

  • the failure rate fell to nine percent.

  • So the results can be extremely, extremely good.

  • Now before we go too far into this,

  • I'd like to spend some time discussing

  • some key ideas.

  • What are some key ideas

  • that makes all of this work?

  • One idea is active learning.

  • The idea here is, rather than have students

  • walk into class and watch lectures,

  • we replace this with what we call lessons.

  • Lessons are interleaved sequences

  • of videos and interactive exercises.

  • So a student might watch a five-, seven-minute video

  • and follow that with an interactive exercise.

  • Think of this as the ultimate Socratization of education.

  • You teach by asking questions.

  • And this is a form of learning

  • called active learning,

  • and really promoted by a very early paper, in 1972,

  • by Craik and Lockhart,

  • where they said and discovered

  • that learning and retention really relates strongly

  • to the depth of mental processing.

  • Students learn much better

  • when they are interacting with the material.

  • The second idea is self-pacing.

  • Now, when I went to a lecture hall,

  • and if you were like me,

  • by the fifth minute I would lose the professor.

  • I wasn't all that smart, and I would be scrambling, taking notes,

  • and then I would lose the lecture for the rest of the hour.

  • Instead, wouldn't it be nice with online technologies,

  • we offer videos and interactive engagements to students?

  • They can hit the pause button.

  • They can rewind the professor.

  • Heck, they can even mute the professor.

  • So this form of self-pacing

  • can be very helpful to learning.

  • The third idea that we have is instant feedback.

  • With instant feedback,

  • the computer grades exercises.

  • I mean, how else do you teach 150,000 students?

  • Your computer is grading all the exercises.

  • And we've all submitted homeworks,

  • and your grades come back two weeks later,

  • you've forgotten all about it.

  • I don't think I've still received some of my homeworks

  • from my undergraduate days.

  • Some are never graded.

  • So with instant feedback,

  • students can try to apply answers.

  • If they get it wrong, they can get instant feedback.

  • They can try it again and try it again,

  • and this really becomes much more engaging.

  • They get the instant feedback,

  • and this little green check mark that you see here

  • is becoming somewhat of a cult symbol at edX.

  • Learners are telling us that they go to bed at night

  • dreaming of the green check mark.

  • In fact, one of our learners

  • who took the circuits course early last year,

  • he then went on to take a software course

  • from Berkeley at the end of the year,

  • and this is what the learner had to say

  • on our discussion board

  • when he just started that course

  • about the green check mark:

  • "Oh god; have I missed you."

  • When's the last time you've seen students

  • posting comments like this about homework?

  • My colleague Ed Bertschinger,

  • who heads up the physics department at MIT,

  • has this to say about instant feedback:

  • He indicated that instant feedback

  • turns teaching moments into learning outcomes.

  • The next big idea is gamification.

  • You know, all learners engage really well

  • with interactive videos and so on.

  • You know, they would sit down and shoot

  • alien spaceships all day long until they get it.

  • So we applied these gamification techniques to learning,

  • and we can build these online laboratories.

  • How do you teach creativity? How do you teach design?

  • We can do this through online labs

  • and use computing power

  • to build these online labs.

  • So as this little video shows here,

  • you can engage students

  • much like they design with Legos.

  • So here, the learners are building a circuit

  • with Lego-like ease.

  • And this can also be graded by the computer.

  • Fifth is peer learning.

  • So here, we use discussion forums and discussions

  • and Facebook-like interaction

  • not as a distraction,

  • but to really help students learn.

  • Let me tell you a story.

  • When we did our circuits course

  • for the 155,000 students,

  • I didn't sleep for three nights

  • leading up to the launch of the course.

  • I told my TAs, okay, 24/7,

  • we're going to be up

  • monitoring the forum, answering questions.

  • They had answered questions for 100 students.

  • How do you do that for 150,000?

  • So one night I'm sitting up there, at 2 a.m. at night,

  • and I think there's this question

  • from a student from Pakistan,

  • and he asked a question, and I said,

  • okay, let me go and type up an answer,

  • I don't type all that fast,

  • and I begin typing up the answer,

  • and before I can finish,

  • another student from Egypt popped in with an answer,

  • not quite right, so I'm fixing the answer,

  • and before I can finish, a student from the U.S.

  • had popped in with a different answer.

  • And then I sat back, fascinated.

  • Boom, boom, boom, boom, the students were

  • discussing and interacting with each other,

  • and by 4 a.m. that night, I'm totally fascinated,

  • having this epiphany,

  • and by 4 a.m. in the morning,

  • they had discovered the right answer.

  • And all I had to do was go and bless it,

  • "Good answer."

  • So this is absolutely amazing,

  • where students are learning from each other,

  • and they're telling us that they are learning

  • by teaching.

  • Now this is all not just in the future.

  • This is happening today.

  • So we are applying these blended learning pilots

  • in a number of universities and high schools around the world,

  • from Tsinghua in China

  • to the National University of Mongolia in Mongolia

  • to Berkeley in California --

  • all over the world.

  • And these kinds of technologies really help,

  • the blended model can really help

  • revolutionize education.

  • It can also solve a practical problem of MOOCs,

  • the business aspect.

  • We can also license these MOOC courses

  • to other universities,

  • and therein lies a revenue model for MOOCs,

  • where the university that licenses it with the professor

  • can use these online courses

  • like the next-generation textbook.

  • They can use as much or as little as they like,

  • and it becomes a tool in the teacher's arsenal.

  • Finally, I would like to have you

  • dream with me for a little bit.

  • I would like us to really reimagine education.

  • We will have to move from lecture halls to e-spaces.

  • We have to move from books to tablets

  • like the Aakash in India

  • or the Raspberry Pi, 20 dollars.

  • The Aakash is 40 dollars.

  • We have to move from bricks-and-mortar school buildings

  • to digital dormitories.

  • But I think at the end of the day,

  • I think we will still need one lecture hall

  • in our universities.

  • Otherwise, how else do we tell our grandchildren

  • that your grandparents sat in that room

  • in neat little rows like cornstalks

  • and watched this professor at the end

  • talk about content and, you know,

  • you didn't even have a rewind button?

  • Thank you.

  • (Applause)

  • Thank you. Thank you. (Applause)

I'd like to reimagine education.

Subtitles and vocabulary

B1 TED online education classroom learning blended

【TED】Anant Agarwal: Why massively open online courses (still) matter

  • 689 30
    Max Lin posted on 2015/12/29
Video vocabulary

Keywords

change

US /tʃendʒ/

UK /tʃeɪndʒ/

  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
instant

US /ˈɪnstənt/

UK /ˈɪnstənt/

  • adjecitve
  • (Food) requiring very little preparation
  • Occurring immediately
  • noun
  • A very short period of time
apply

US /əˈplaɪ/

UK /ə'plaɪ/

  • verb
  • To spread a substance or liquid over a surface
  • To commit your time and effort to doing something
  • To make something useful in a certain situation
  • To be relevant for a situation
  • To ask formally for (job, permission etc.)
generation

US /ˌdʒɛnəˈreʃən/

UK /ˌdʒenəˈreɪʃn/

  • noun
  • Act or process of producing or causing something
  • People born and living at about the same time
year

US /jɪr/

UK /jə:/

  • noun
  • Unit of time equal to 12 months or 365 or 366 days
  • Used to refer to the age of a person
check

US /tʃɛk/

UK /tʃek/

  • noun
  • Paper showing how much you owe at a restaurant
  • Printed piece of paper you sign to pay for things
  • A mark on a form, equivalent to 'yes'; tick
  • Mark used to show that something is correct
  • Procedure to prevent errors or control something
  • verb
  • To confirm the details of something are correct
  • To leave your things with staff who look after it
  • To examine something to see if something is wrong
  • To examine in order to prevent errors/a problem
  • adjecitve
  • Decorated with squares made up of lines
lecture

US /ˈlɛktʃɚ/

UK /'lektʃə(r)/

  • verb
  • To speak to someone to show anger or warn them
  • To give a talk or speech about a subject
  • noun
  • Telling someone off for doing something wrong
  • Talk or speech about a particular subject
millennial

US /mɪ'lenɪrl/

UK /mɪ'lenɪəl/

  • adjecitve
  • Concerning a millennium (a thousand years)
education

US /ˌɛdʒəˈkeʃən/

UK /ˌedʒuˈkeɪʃn/

  • noun
  • Academic field studying the practice of teaching
  • Process of giving or receiving teaching
answer

US /ˈænsɚ/

UK /'ɑ:nsə(r)/

  • verb
  • To reply to a question someone asks
  • To solve a test question or a problem
  • noun
  • Reply to a question someone asks
  • Solution to a problem or test question

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