### Salman Khan: Let's use video to reinvent education

by TED • 811,143 views

http://www.ted.com Salman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now,...

I learn way more from Khan Academy alone than I do in a classroom. For those of us with self control, Khan Academy by itself defeats the purpose of learning math/chem/physic in school.
+Michael Luo Now I can learn linear algebra in my underwear :)
Thank you Sal, you've taught me so much :)
Yo! What is that equation he puts at the start? And what does it mean?
The equation itself is pretty much just used to show the beauty of mathematics, but it is the result of the formula that the sum of the nth roots of unity is 0. Roots of unity are complex numbers (numbers which involve i) that when raised to the nth power result in 1. I don't know much about them, but they have many applications in number theory, group theory, and the discrete fourier transform. e is a real number and is equivalent to 2.71828... and is defined as the limit as n approaches infinity of (1+1/n)^n. It was discovered by Jacob Bernoulli in 1690 while he was studying continuous compound interest. Continuous compound interest is what you get if an annual interest rate is compounded infinitely often. For instance, if you have an interest rate of 10% per year, you can compound 5% per 6 months, or 2.5% per 3 months, etc. The term transcendental is used because it "transcends algebra" because it cannot be described using a finite algebraic equation. The opposite of transcendental is algebraic. I hope all of that made sense :)
:)) I am sorry to say it did not. But it has set me on a path of learning. Thank you kind stranger.  Will get back to you when all this makes sense.
What an amazing guy, I have learnt a lot from him. So inspirational.
Maria Daou Shared on Google+ ·
God bless this man
Mubarak Hussain Shared on Google+ ·
I was so inspired after watching this video that I thought about a Business Concept around it. https://medium.com/@rat9/combine-studies-online-app-ec0e58dbec30
This awesome guy has taught me so much the past few years in high school. I can't wait to see how many A's I can get on tests in college after learning from him!
Tayakorn Rakwetpakorn Shared on Google+ ·
so much respect for this man
Mubarak Hussain Shared on Google+ ·
I was so inspired after watching this video that I thought about a Business Concept around it. https://medium.com/@rat9/combine-studies-online-app-ec0e58dbec30
I've got so much respect for this man. Humble, smart and has even helped me through university and high school many times.
I was so inspired after watching this video that I thought about a Business Concept around it. https://medium.com/@rat9/combine-studies-online-app-ec0e58dbec30
Kinda ironic, I've learned more from Sal than any previous teacher. Haha! :)
Thanks Khan ... you have revolutionised the education system !!! .. You have definitely succeeded in giving back to the society in such a tremendous way ... god bless you ..
Naveed Kharal Shared on Google+ ·
Respect.
you're idea is the future of education
I tried some courses on coursera but they were not as good as ones on Khan Academy. however, I hope that Khan Academy will have more and more courses about subjects in university.  thank you so much Khan!
i love this man
Fuck textbooks.  I got Khan.
great man
Casanova Shared on Google+ ·
💥معلم يتولى تدريس مليوني طالب شهريًا مجانًا! في عام 2004م، أراد سلمان خان، وهو أمريكي من والدين مهاجرين من بنجلاديش، مساعدة ابنة عمه نادية البالغة من العمر 13 عامًا، في فهم دروس الرياضيات، والمقيمة على بعد 2000 كيلو متر من مكان سكنه، فكان يستخدم الهاتف والإنترنت لتدريسها، ثم زاد عدد الأقارب الذين طلبوا الاستفادة من دروسه، فقام بتسجيلها في أفلام فيديو، ونشرها على موقع يوتيوب، فوصل عدد المستفيدين من هذه الدروس حتى الآن أكثر من 80 مليون شخص من جميع أنحاء العالم. خان الذي درس في أرقى الجامعات الأمريكية، وعمل في أسواق المال براتب كبير، قرر في عام 2009م أن يتوقف عن عمله الأصلي، وأن يتفرغ لشرح الدروس في الرياضيات والفيزياء والكيمياء والأحياء والاقتصاد والحاسب الآلي والتاريخ، بمعدل خمسة دروس أسبوعيًا، تتراوح مدة كل درس منها بين 8 – 15 دقيقة. 💫كان يقوم بكل هذا العمل بدون مقابل، لإيمانه بأن هذا العمل يفتح الطريق أمام الأطفال المحرومين من التعليم، بسبب حاجة أهلهم إلى المال، لأنهم يستطيعون أن يشاهدوا دروسه في المساء، بعد العودة من العمل، وأن يؤدوا الاختبارات في نهاية العام الدراسي، كطلاب منتسبين. كانت زوجته قد أعطته مهلة لمدة عام، منذ تاريخ تركه لعمله الأصلي، للحصول على دخل بديل، لأن ملايين التعليقات التي كانت تصله على الإنترنت لتشيد بعمله، وتشكره على ما يقدمه للتعليم لا تكفي لإطعام أسرته، لكن المفاجأة جاءت على يد بيل جيتس، مؤسس شركة مايكروسوفت، الذي منحه مليون ونصف المليون دولار، معللاً ذلك بأن «خان هو رائد حركة تستفيد من التقنيات لتوفير التعليم للمزيد من البشر»، وكشف إعجاب أطفاله بهذه الدروس، وكذلك قدمت له شركة جوجل مليوني دولار. 📚تحول سلمان خان إلى نجم في المجتمع، واستضافته محطة (سي إن إن) الإخبارية الأمريكية، لكي يشرح للمشاهدين سبب الأزمة العقارية في الولايات المتحدة، وأصبح ضيفًا على المؤتمرات، وقررت مدرسة في ولاية كاليفورنيا أن تستعين بدروسه المسجلة، في الصفين الخامس الابتدائي والأول المتوسط، لإعجاب الهيئة التدريسية بطريقة شرحه. 🔖يرى خان إمكانية اعتماد الطلاب على شرح الدروس في الإنترنت مساء في البيت، وتصبح المدرسة هي مكان عمل الواجبات، وليس العكس، لأن المعلم سيكون في هذه الحالة متفرغًا لمساعدة كل طالب، حسب احتياجاته الفردية، لأن المشكلة ليست في فهم الدروس، بل في تطبيق ما تعلمه الطالب في حل التمارين. 🌿سلمان خان قرر أن يرى الطالب الشرح على الشاشة، دون أن يرى صورة المعلم، بل يسمع صوته فقط، لاعتقاده بأن ذلك يساعد على التركيز، وعدم تشتت الذهن، وهو يكتب الشرح بخط اليد، ولا يستعين بخطوط الكمبيوتر، لأن خط اليد يجعل الطالب يشعر بالمصداقية، وبقرب المعلم منه. وقد أضاف لبرامج الشرح ميزة جديدة، لتشجيع الطلاب على الاجتهاد، وذلك بأن يحصل الطالب الذي يجيب على الأسئلة كلها بصورة صحيحة، على أوسمةافتراضية. الطريف في الأمر أن الإقبال على دروس خان، والموجودة على موقعه الإلكتروني وهو: (www.khanacademy.org) لم يعد يقتصر على المتحدثين بالإنجليزية، فقد تبرع أشخاص بترجمة الدروس إلى اللغات الأخرى، وكان الأسبان هم أنشط المترجمين، حتى الآن. من يدري ربما يقوم شخص عربي بترجمة هذه الدروس، أو بعمل تجربة مشابهة إذا وجد من يدعمه مثلما فعل بيل جيتس
Egle Marija Ramanauskaite Shared on Google+ · ·
Gal kas turi ryšių su matematika? Nors jei ir ne, šis video ir dėl pačios idėjos smagus:  LET’S USE VIDEO TO REINVENT EDUCATION - KHAN, S. (2011, MARCH 9)
'There I was, an analyst at a hedgefund and it was strange for me to do something of social value' :P - Salman Khan from Khan Academy
He's come a long way. Strong delivery on TED too.
I see no reason to dislike this video.. still 89 people did it..
There are probably a certain subsection of mis-clicks. Beyond that I don't know.
That's the reality of YouTube. Every video, regardless of how good it is, will be disliked. The ratio is what's most important.
Martin Karrer Shared on Google+ ·
#education   +Khan Academy  +Khan Academy Deutsch Salman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now, other subjects. He shows the power of interactive exercises, and calls for teachers to consider flipping the traditional classroom script -- give students video lectures to watch at home, and do "homework" in the classroom with the teacher available to help.
khan academy user since 2010. God bless you Khan, you're a genius
Andy Cheng Shared on Google+ · ·
Salman Khan 的翻轉教室理論與實踐。
Dina Lewin Feller Shared on Google+ ·
Great work for the service of the masses .......inspirational........proud of him as he is from my native country Bangladesh emigrated with his parents..
He was actually born in Louisiana.
All the money we've spent on education and the solution is outside the system.
The system is also designed to free parents up so they can work etc.  Yet to be discovered, though alluded to here, is the power of peer teaching. Over 100 years ago there was a school with one teacher, 10 senior students learning from the teacher who also each taught 10 other students, who then each taught 10 other students. Each student was learning enough to be able to actually teach the subject which is very deep learning. When this happen, in concert with this type of video resourcing, the earth will change even further.
Khan Academy has helped me numerous times. Thank you Salman Khan!
This man and his idea is awesome!
💥معلم يتولى تدريس مليوني طالب شهريًا مجانًا! في عام 2004م، أراد سلمان خان، وهو أمريكي من والدين مهاجرين من بنجلاديش، مساعدة ابنة عمه نادية البالغة من العمر 13 عامًا، في فهم دروس الرياضيات، والمقيمة على بعد 2000 كيلو متر من مكان سكنه، فكان يستخدم الهاتف والإنترنت لتدريسها، ثم زاد عدد الأقارب الذين طلبوا الاستفادة من دروسه، فقام بتسجيلها في أفلام فيديو، ونشرها على موقع يوتيوب، فوصل عدد المستفيدين من هذه الدروس حتى الآن أكثر من 80 مليون شخص من جميع أنحاء العالم. خان الذي درس في أرقى الجامعات الأمريكية، وعمل في أسواق المال براتب كبير، قرر في عام 2009م أن يتوقف عن عمله الأصلي، وأن يتفرغ لشرح الدروس في الرياضيات والفيزياء والكيمياء والأحياء والاقتصاد والحاسب الآلي والتاريخ، بمعدل خمسة دروس أسبوعيًا، تتراوح مدة كل درس منها بين 8 – 15 دقيقة. 💫كان يقوم بكل هذا العمل بدون مقابل، لإيمانه بأن هذا العمل يفتح الطريق أمام الأطفال المحرومين من التعليم، بسبب حاجة أهلهم إلى المال، لأنهم يستطيعون أن يشاهدوا دروسه في المساء، بعد العودة من العمل، وأن يؤدوا الاختبارات في نهاية العام الدراسي، كطلاب منتسبين. كانت زوجته قد أعطته مهلة لمدة عام، منذ تاريخ تركه لعمله الأصلي، للحصول على دخل بديل، لأن ملايين التعليقات التي كانت تصله على الإنترنت لتشيد بعمله، وتشكره على ما يقدمه للتعليم لا تكفي لإطعام أسرته، لكن المفاجأة جاءت على يد بيل جيتس، مؤسس شركة مايكروسوفت، الذي منحه مليون ونصف المليون دولار، معللاً ذلك بأن «خان هو رائد حركة تستفيد من التقنيات لتوفير التعليم للمزيد من البشر»، وكشف إعجاب أطفاله بهذه الدروس، وكذلك قدمت له شركة جوجل مليوني دولار. 📚تحول سلمان خان إلى نجم في المجتمع، واستضافته محطة (سي إن إن) الإخبارية الأمريكية، لكي يشرح للمشاهدين سبب الأزمة العقارية في الولايات المتحدة، وأصبح ضيفًا على المؤتمرات، وقررت مدرسة في ولاية كاليفورنيا أن تستعين بدروسه المسجلة، في الصفين الخامس الابتدائي والأول المتوسط، لإعجاب الهيئة التدريسية بطريقة شرحه. 🔖يرى خان إمكانية اعتماد الطلاب على شرح الدروس في الإنترنت مساء في البيت، وتصبح المدرسة هي مكان عمل الواجبات، وليس العكس، لأن المعلم سيكون في هذه الحالة متفرغًا لمساعدة كل طالب، حسب احتياجاته الفردية، لأن المشكلة ليست في فهم الدروس، بل في تطبيق ما تعلمه الطالب في حل التمارين. 🌿سلمان خان قرر أن يرى الطالب الشرح على الشاشة، دون أن يرى صورة المعلم، بل يسمع صوته فقط، لاعتقاده بأن ذلك يساعد على التركيز، وعدم تشتت الذهن، وهو يكتب الشرح بخط اليد، ولا يستعين بخطوط الكمبيوتر، لأن خط اليد يجعل الطالب يشعر بالمصداقية، وبقرب المعلم منه. وقد أضاف لبرامج الشرح ميزة جديدة، لتشجيع الطلاب على الاجتهاد، وذلك بأن يحصل الطالب الذي يجيب على الأسئلة كلها بصورة صحيحة، على أوسمةافتراضية. الطريف في الأمر أن الإقبال على دروس خان، والموجودة على موقعه الإلكتروني وهو: (www.khanacademy.org) لم يعد يقتصر على المتحدثين بالإنجليزية، فقد تبرع أشخاص بترجمة الدروس إلى اللغات الأخرى، وكان الأسبان هم أنشط المترجمين، حتى الآن. من يدري ربما يقوم شخص عربي بترجمة هذه الدروس، أو بعمل تجربة مشابهة إذا وجد من يدعمه مثلما فعل بيل جيتس
Caue Rego Shared on Google+ ·
envy
The amazing truth... nice touch with Billy at the end means this is gonna go somewhere...
Billy the kid
Salman is amazing!
MIT and harvard master ... if he want he can earn highest salary but he doing good thing of free education (if he earns as side product that is good too) ...
This guy has no idea how much I value his videos. Thank you for everything sir.
Was that that famos gui that made microsawft??? whatz hiz name?? Bil Fencez?
This idea kind of reminds me of the Justin Long and Jonah Hill movie, Accepted. I love that movie and wonder about how it (or a system remarkably like it) would actually work, possibly even better than what we have now (with some sort of guidelines in place of course to keep it from getting too... disharmonious).
Teachers like me love it... And the kid deserve this
Skills &Co Shared on Google+ ·
Een filmpje over de prachtige visie van Salman Khan! #onderwijs   #innovatie   #tedtalks   #salmankhan
I've been studying mathematics on Khan Academy. I haven't had a math class since my junior year of high school (going on 7 years ago), and I'm really rusty on a lot of things, including some things that most educated people would consider fairly basic. It's really nice to be able to relearn those things that I haven't used in a long time (such as multiplying two multiple-digit numbers, which I rely on a calculator for) and some things that I actually never learned in school (such as tricks for determining divisibility by a few 1-digit numbers). I never feel like I'm being judged for having to relearn some of those elementary aspects of math and I'm even given points as a reward for watching those videos and doing challenges related to them. Since I spend time with a community of people who make computer games (some as a job, some as a hobby), I know some people whose math knowledge goes into graduate-level calculus which goes way over my head. You have my word, internets, that I will keep studying until I understand those kinds of subjects and I will keep going even beyond that. With Khan Academy, MOOCs, and all other sorts of open education resources, the barrier to education is lower than it ever has been in the history of civilization. Viva la educación!
I wonder if he is related to the great Genghis.
If I remember correctly, something like 0.5% of the world's population (or some percentage like that) is related to Genghis Khan. I think I saw that in an ad for History Channel on TV.
Salman Khan is so inspirational!
sal, if i had a large photo frame of you, i'd literally keep it in the temple room and pray to u everyday! ive never come across a tutor who has even 10% of the clarity in explanation as you do! thanks man :)
Obviously even Sal couldn't get anything through the skulls of those specific 91 dislikers....
wow u r awesome my daughter can now get good grades
Why dose this guy get so much credit? His is just one of many many educational videos on YouTube.
Awsome....wonderful ideas...Respect ..!!!
I Love Khan Acadamy! Thank you Sal.
Wait, from 7:00. I don't get it. If students can use technology to learn, instead of having teachers lecturing/teaching the students why still hire teachers to teach then?? May someone please respond, It will be extremely grateful and appreciated.
brian hibbs Shared on Google+ ·
Omg that bicycle metaphor...!! We need more teachers like you! :)
With Gates backing up, there is wonderful future of education. Way to go Salman Khan...
Absolutely fantastic! I have seen this video a couple of times now, and every time it makes me smile! He puts all his videos up for ...free! I just love it! This is the future!
Rajesh S R Shared on Google+ ·
I really like his data-driven learning(Targeted learning, much like targeted ads! ;) ): Salman Khan: Let's use video to reinvent education And of course, the thing that excites me is the idea of peer-to-peer learning! Again, i will never get tired of stating this: Internet is the greatest thing to ever happen to me. Literally a million people providing awesome contents and perspectives on things, which was not available to our previous generations. But it can be made better. When i want to learn a new topic, i spend a lot of time first garnering resources, then mostly working my way through it and occasionally googling about interesting questions that pops in my mind and seeing answers in various forums. But it is not very optimal. The ratio of learning to time invested is not very great! One thing i seems to enjoy is when i discuss my understanding of a topic with  others: Asking direct questions, being criticized for my understanding, proposing incorrect theorems/phenomenon and getting it corrected, alternative ways of thinking about things etc. Today all of these is achieved by heavy googling and reading various lecture notes and forums. But, these things aid learning a lot. We need something that makes study-groups and peer-peer learning fruitful. May be there is some other automated way to solving this issue, more than a peer-to-peer learning?
I just love Salman Khan, he is a fantastisc person, with a great work. I have seen a lot of his inspirational videos, that really helps you learning and get back on the track. So if you haven't seen his videos yet, then i would recommend you to see them!
Thank you Sal :)
Daniela Mearns Shared on Google+ ·
Salman Khan:  Let's use video to reinvent education. An amazing way to teach in the classroom and at home.  The beauty of it is that students will actually learn.
Khan academy is the future of education for sure. Watch out textbook companies you greedy motherfuckers.
Kokila Parmar Shared on Google+ ·
A very useful way to teach! Very interesting!
Mark Bryce Shared on Google+ ·
I am left speehless by this amazing peron's creation.
I like his take on how kids learn at their own pace, and how indirectly, it proves that labelling kids as "slow" or "gifted" is a silly thing to do. It's all a coincidence of time. We grow and develop at different times, we have different ways of learning etc...
James Rycman Shared on Google+ ·
a worthwhile path in #education
Hazel Jones Shared on Google+ ·
AMEN!
What a legend. This is the kind of person of today that will be remembered in the history books.
Wow this guy... man this guy is crazy good.  Such a brilliant human being..!!
He meets the giving to society, well the world as a volunteer.   This has helped me master math in areas I needed for my next career move.  Thank you KHAN Man.
This is going to be my first year teaching GCSE Computer Science.  Thank you for your Python videos.  I tried a few of your maths video (I also teach lower school Maths) with my students last year.  They worked very well.  I like the analytical tools you have implemented and will get the Computer Science students signed up this year to make full use of them.  I must say, I am really excited about using more of my class time in 1:1 with students.
I'm a junior in high school and I have to say I benefit more from online personal video for algebra 2 than I do from my own teachers lectures because it is a lot easier to learn at your own pace and being able to just watch the video over again if I didn't understand something and I feel more relaxed allowing me to understand quicker.
Giovane Batista Shared on Google+ ·
Everyone is gifted .... knowledge is the key to unlock the gift ... Juli ;)
Love this guy.  Just recommended this to my friend who is preparing for a nursing school!!!!
No doubt video education is a plus overall. Some like the traditional, and some do not, or some just do not like education at all.  I personally think human face to face educating and Clouding Versions (or such as Khan does) go hand in hand.   Past , Present and Future all blend for a purpose.
as a future teacher who is finishing up my credential program, I am beyond excited to implement this into my classroom. talk about differentiating instruction and meeting kids at their level. simply brilliant!
I look at Bill Gates and I think to myself, here's a multi-billionaire that could spend his time and money doing whatever the fuck he wants, drowning in whatever pleasure he wants, instead he's spending a sizable part of his fortune and time helping (or at least trying to) and genuinely making a difference. Why? Is he trying to feel good about himself? He's built the biggest (at one time) company in the world, his products are used every day in one form or another, so I highly doubt that. Is he trying to be a saint? He's an atheist (or agnostic in the least), so I doubt that too. The only answer I can come up with, is that he's genuinely a decent person that's trying to make a difference in the world, the way most of us wish we could. The fact that people like this do exist in this world, gives me a little hope back from watching this YOLO spurting, selfie-posting generation. You know?
I see Bill Gates and think it's ironic that he donates his money to such noble causes. In the 90's - 2000's, he was monopolizing the computer industry. Maybe he's repenting...
excellent concept
does he know any word called " PLAYING " ??? i guess doesen't.
Im just getting more mad seeing this after 27 yrs of torture by our system.. :( Great idea..  May God bless this TRUE HUMAN BEING ..... nothing more to say..
i love this guy , made my life easier
Alexandre Colin Shared on Google+ ·
great idea
Berrin Öztürk Shared on Google+ ·
Check out this video on YouTube:
Swarnali chakraborty Shared on Google+ ·
Wow. Khan Academy works very well for me. We need to get it into a lot more schools because it works better than anything else right now.
nice video by salman khan , his name has got value
Imagine if just a few more hedge fund analysts quit their jobs and did something useful to the world. Wouldn't that be wonderful?
we must get parents ready for this..
I agree.We need to get some of our teachers ready for this too. They need to stop rushing through the day and start making sure our students are learning not just completing a worksheet. just a thought
My mom loves Indian movies so I when I saw this I said to myself how is an Indian actor worthy of making a a TED talk
Leonel Mendez Shared on Google+ ·
Espero algún día conversar con +salman khan
Is there an internship at Khan Academy? :o I'm going to apply right now.
B. Silver Shared on Google+ ·
Co za umysł, co za prezencja!!!! Chętnie bym go zjadła ^_^ Ooczywiście zaczęłabym od najwartościowszego organu... mózgu!. Hihihi... to taka luźna uwaga w duchu  - szerzącego się na jaśnie oświeconym przez Al-Kaidę Bliskim Wschodzie - kanibalizmu. X,D Whata Mind, whata appearance!!! I wouldn't mind to eat Him, of course His brain... Well ... in the spirit of enlightened Al-Qaeda in the  Middle East, they like a cannibalism I've heard. Lol!  ^_^
Willian M. Shared on Google+ ·
that's completely amazing! brought me a bit of hope..
gabriela alcaraz Shared on Google+ · ·
Para la segunda actividad de “Pensar en Red”  me gustaría compartirles un video que a mí me causo algo de impacto ya que yo siempre decía que no era posible dejar de ir a la escuela y hacer todo de manera virtual. Pero aquí se muestra como puede ser a veces hasta mejor.  Como lo vimos en la actividad pasada somos una sociedad sujeta a cambios repentinos y evoluciones tecnológicas que nos ayudan a mejorar siempre y cuando les saquemos el provecho ADECUADO y no abusemos ni desperdiciemos esta gran herramienta que se nos ha brindado.
Hola Gaby: A mí también me parece interesante lo que la tecnología ofrece para los diferentes campos del conocimiento. Además me gustaría rescatar el concepto que el menciona de "flipped classroom"; un nuevo modelo que ha servido en la educación para incrementar los niveles de éxito y sobretodo, permitir el ritmo propio de cada uno de los estudiantes.  http://www.knewton.com/flipped-classroom/
Yashwanth somayajula Shared on Google+ ·