0:00:00.207,0:00:03.558 I'd like to reimagine education. 0:00:03.558,0:00:05.148 The last year 0:00:05.148,0:00:08.054 has seen the invention of a new four-letter word. 0:00:08.054,0:00:09.967 It starts with an M. 0:00:09.967,0:00:14.424 MOOC: massive open online courses. 0:00:14.424,0:00:15.901 Many organizations 0:00:15.901,0:00:18.659 are offering these online courses 0:00:18.659,0:00:22.689 to students all over the world, in the millions, for free. 0:00:22.689,0:00:24.249 Anybody who has an Internet connection 0:00:24.249,0:00:26.777 and the will to learn can access these great courses 0:00:26.777,0:00:28.871 from excellent universities 0:00:28.871,0:00:32.128 and get a credential at the end of it. 0:00:32.128,0:00:34.752 Now, in this discussion today, 0:00:34.752,0:00:35.987 I'm going to focus 0:00:35.987,0:00:39.255 on a different aspect of MOOCs. 0:00:39.255,0:00:41.606 We are taking what we are learning 0:00:41.606,0:00:44.171 and the technologies we are developing in the large 0:00:44.171,0:00:46.271 and applying them in the small 0:00:46.271,0:00:49.250 to create a blended model of education 0:00:49.250,0:00:51.043 to really reinvent and reimagine 0:00:51.043,0:00:53.470 what we do in the classroom. 0:00:53.470,0:00:55.980 Now, our classrooms could use change. 0:00:55.980,0:00:58.401 So, here's a classroom 0:00:58.401,0:01:00.426 at this little three-letter institute 0:01:00.426,0:01:03.210 in the Northeast of America, MIT. 0:01:03.210,0:01:05.529 And this was a classroom about 50 or 60 years ago, 0:01:05.529,0:01:08.996 and this is a classroom today. 0:01:08.996,0:01:12.116 What's changed? 0:01:12.116,0:01:14.663 The seats are in color. 0:01:14.663,0:01:17.791 Whoop-de-do. 0:01:17.791,0:01:20.502 Education really hasn't changed 0:01:20.502,0:01:22.197 in the past 500 years. 0:01:22.197,0:01:24.528 The last big innovation in education 0:01:24.528,0:01:28.010 was the printing press and the textbooks. 0:01:28.010,0:01:29.420 Everything else has changed around us. 0:01:29.420,0:01:31.243 You know, from healthcare to transportation, 0:01:31.243,0:01:35.736 everything is different,[br]but education hasn't changed. 0:01:35.736,0:01:38.409 It's also been a real issue in terms of access. 0:01:38.409,0:01:40.036 So what you see here 0:01:40.036,0:01:42.538 is not a rock concert. 0:01:42.538,0:01:45.084 And the person you see at the end of the stage 0:01:45.084,0:01:47.144 is not Madonna. 0:01:47.144,0:01:48.773 This is a classroom 0:01:48.773,0:01:53.191 at the Obafemi Awolowo University in Nigeria. 0:01:53.191,0:01:57.127 Now, we've all heard of distance education, 0:01:57.127,0:01:58.495 but the students way in the back, 0:01:58.495,0:02:00.607 200 feet away from the instructor, 0:02:00.607,0:02:05.502 I think they are undergoing long-distance education. 0:02:05.502,0:02:07.177 Now, I really believe 0:02:07.177,0:02:09.392 that we can transform education, 0:02:09.392,0:02:12.238 both in quality and scale and access, 0:02:12.238,0:02:14.546 through technology. 0:02:14.546,0:02:18.241 For example, at edX, 0:02:18.241,0:02:20.494 we are trying to transform education 0:02:20.494,0:02:23.654 through online technologies. 0:02:23.654,0:02:26.913 Given education has been calcified for 500 years, 0:02:26.913,0:02:29.104 we really cannot think about reengineering it, 0:02:29.104,0:02:30.249 micromanaging it. 0:02:30.249,0:02:32.557 We really have to completely reimagine it. 0:02:32.557,0:02:36.598 It's like going from ox carts to the airplane. 0:02:36.598,0:02:38.121 Even the infrastructure has to change. 0:02:38.121,0:02:39.734 Everything has to change. 0:02:39.734,0:02:43.099 We need to go from lectures on the blackboard 0:02:43.099,0:02:45.707 to online exercises, online videos. 0:02:45.707,0:02:48.188 We have to go to interactive virtual laboratories 0:02:48.188,0:02:49.837 and gamification. 0:02:49.837,0:02:51.748 We have to go to completely online grading 0:02:51.748,0:02:54.501 and peer interaction and discussion boards. 0:02:54.501,0:02:56.782 Everything really has to change. 0:02:56.782,0:02:59.288 So at edX and a number of other organizations, 0:02:59.288,0:03:01.447 we are applying these technologies to education 0:03:01.447,0:03:04.633 through MOOCs to really[br]increase access to education. 0:03:04.633,0:03:06.350 And you heard of this example, 0:03:06.350,0:03:08.966 where, when we launched our very first course -- 0:03:08.966,0:03:10.732 and this was an MIT-hard 0:03:10.732,0:03:12.320 circuits and electronics course -- 0:03:12.320,0:03:15.014 about a year and a half ago, 0:03:15.014,0:03:20.317 155,000 students from 162 countries 0:03:20.317,0:03:22.020 enrolled in this course. 0:03:22.020,0:03:24.706 And we had no marketing budget. 0:03:24.706,0:03:28.194 Now, 155,000 is a big number. 0:03:28.194,0:03:29.933 This number is bigger 0:03:29.933,0:03:32.564 than the total number of alumni of MIT 0:03:32.564,0:03:36.389 in its 150-year history. 0:03:36.389,0:03:38.547 7,200 students passed the course, 0:03:38.547,0:03:41.010 and this was a hard course. 0:03:41.010,0:03:44.464 7,200 is also a big number. 0:03:44.464,0:03:48.006 If I were to teach at MIT two semesters every year, 0:03:48.006,0:03:50.883 I would have to teach for 40 years 0:03:50.883,0:03:53.485 before I could teach this many students. 0:03:53.485,0:03:55.023 Now these large numbers 0:03:55.023,0:03:57.181 are just one part of the story. 0:03:57.181,0:03:59.843 So today, I want to discuss a different aspect, 0:03:59.843,0:04:01.068 the other side of MOOCs, 0:04:01.068,0:04:03.247 take a different perspective. 0:04:03.247,0:04:06.182 We are taking what we develop[br]and learn in the large 0:04:06.182,0:04:07.727 and applying it in the small 0:04:07.727,0:04:11.723 to the classroom, to create[br]a blended model of learning. 0:04:11.723,0:04:16.326 But before I go into that, let me tell you a story. 0:04:16.326,0:04:20.410 When my daughter turned 13, became a teenager, 0:04:20.410,0:04:23.777 she stopped speaking English, 0:04:23.777,0:04:26.838 and she began speaking this new language. 0:04:26.838,0:04:29.644 I call it teen-lish. 0:04:29.644,0:04:31.856 It's a digital language. 0:04:31.856,0:04:38.570 It's got two sounds: a grunt and a silence. 0:04:38.570,0:04:41.886 "Honey, come over for dinner." 0:04:41.886,0:04:43.481 "Hmm." 0:04:43.481,0:04:45.615 "Did you hear me?" 0:04:45.615,0:04:47.878 Silence. (Laughter) 0:04:47.878,0:04:49.250 "Can you listen to me?" 0:04:49.250,0:04:50.622 "Hmm." 0:04:50.622,0:04:52.578 So we had a real issue with communicating, 0:04:52.578,0:04:54.846 and we were just not communicating, 0:04:54.846,0:04:57.860 until one day I had this epiphany. 0:04:57.860,0:05:00.523 I texted her. (Laughter) 0:05:00.523,0:05:02.841 I got an instant response. 0:05:02.841,0:05:04.526 I said, no, that must have been by accident. 0:05:04.526,0:05:05.613 She must have thought, you know, 0:05:05.613,0:05:07.900 some friend of hers was calling her. 0:05:07.900,0:05:10.997 So I texted her again. Boom, another response. 0:05:10.997,0:05:12.806 I said, this is great. 0:05:12.806,0:05:14.862 And so since then, our life has changed. 0:05:14.862,0:05:16.420 I text her, she responds. 0:05:16.420,0:05:18.922 It's just been absolutely great. 0:05:18.922,0:05:24.777 (Applause) 0:05:24.777,0:05:26.747 So our millennial generation 0:05:26.747,0:05:28.381 is built differently. 0:05:28.381,0:05:30.882 Now, I'm older, and my[br]youthful looks might belie that, 0:05:30.882,0:05:34.738 but I'm not in the millennial generation. 0:05:34.738,0:05:36.370 But our kids are really different. 0:05:36.370,0:05:38.229 The millennial generation is completely comfortable 0:05:38.229,0:05:39.469 with online technology. 0:05:39.469,0:05:41.498 So why are we fighting it in the classroom? 0:05:41.498,0:05:43.131 Let's not fight it. Let's embrace it. 0:05:43.131,0:05:44.820 In fact, I believe -- and I have two fat thumbs, 0:05:44.820,0:05:46.469 I can't text very well -- 0:05:46.469,0:05:48.636 but I'm willing to bet that with evolution, 0:05:48.636,0:05:50.881 our kids and their grandchildren 0:05:50.881,0:05:52.711 will develop really, really little, itty-bitty thumbs 0:05:52.711,0:05:54.094 to text much better, 0:05:54.094,0:05:56.954 that evolution will fix all of that stuff. 0:05:56.954,0:05:58.725 But what if we embraced technology, 0:05:58.725,0:06:01.329 embraced the millennial generation's 0:06:01.329,0:06:02.594 natural predilections, 0:06:02.594,0:06:05.639 and really think about creating[br]these online technologies, 0:06:05.639,0:06:07.073 blend them into their lives. 0:06:07.073,0:06:08.896 So here's what we can do. 0:06:08.896,0:06:11.388 So rather than driving our kids into a classroom, 0:06:11.388,0:06:13.960 herding them out there at 8 o'clock in the morning -- 0:06:13.960,0:06:16.718 I hated going to class at 8 o'clock in the morning, 0:06:16.718,0:06:18.800 so why are we forcing our kids to do that? 0:06:18.800,0:06:19.974 So instead what you do 0:06:19.974,0:06:21.994 is you have them watch videos 0:06:21.994,0:06:23.805 and do interactive exercises 0:06:23.805,0:06:26.494 in the comfort of their dorm rooms, in their bedroom, 0:06:26.494,0:06:28.355 in the dining room, in the bathroom, 0:06:28.355,0:06:30.932 wherever they're most creative. 0:06:30.932,0:06:32.927 Then they come into the classroom 0:06:32.927,0:06:36.351 for some in-person interaction. 0:06:36.351,0:06:38.188 They can have discussions amongst themselves. 0:06:38.188,0:06:39.764 They can solve problems together. 0:06:39.764,0:06:40.910 They can work with the professor 0:06:40.910,0:06:43.904 and have the professor answer their questions. 0:06:43.904,0:06:47.767 In fact, with edX, when we[br]were teaching our first course 0:06:47.767,0:06:50.193 on circuits and electronics around the world, 0:06:50.193,0:06:52.572 this was happening unbeknownst to us. 0:06:52.572,0:06:54.111 Two high school teachers 0:06:54.111,0:06:57.793 at the Sant High School in Mongolia 0:06:57.793,0:06:59.940 had flipped their classroom, 0:06:59.940,0:07:02.219 and they were using our video lectures 0:07:02.219,0:07:04.092 and interactive exercises, 0:07:04.092,0:07:05.703 where the learners in the high school, 0:07:05.703,0:07:07.288 15-year-olds, mind you, 0:07:07.288,0:07:09.122 would go and do these things in their own homes 0:07:09.122,0:07:10.469 and they would come into class, 0:07:10.469,0:07:12.405 and as you see from this image here, 0:07:12.405,0:07:13.491 they would interact with each other 0:07:13.491,0:07:15.828 and do some physical laboratory work. 0:07:15.828,0:07:17.149 And the only way we discovered this 0:07:17.149,0:07:18.572 was they wrote a blog 0:07:18.572,0:07:22.595 and we happened to stumble upon that blog. 0:07:22.595,0:07:24.702 We were also doing other pilots. 0:07:24.702,0:07:27.184 So we did a pilot experimental blended courses, 0:07:27.184,0:07:30.156 working with San Jose State University in California, 0:07:30.156,0:07:32.003 again, with the circuits and electronics course. 0:07:32.003,0:07:34.471 You'll hear that a lot. That course has become 0:07:34.471,0:07:37.947 sort of like our petri dish of learning. 0:07:37.947,0:07:40.215 So there, the students would, again, 0:07:40.215,0:07:42.942 the instructors flipped the classroom, 0:07:42.942,0:07:44.663 blended online and in person, 0:07:44.663,0:07:46.971 and the results were staggering. 0:07:46.971,0:07:49.613 Now don't take these results to the bank just yet. 0:07:49.613,0:07:52.101 Just wait a little bit longer as we[br]experiment with this some more, 0:07:52.101,0:07:54.262 but the early results are incredible. 0:07:54.262,0:07:56.659 So traditionally, semester upon semester, 0:07:56.659,0:07:59.000 for the past several years, this course, 0:07:59.000,0:08:00.689 again, a hard course, 0:08:00.689,0:08:03.805 had a failure rate of about 40 to 41 percent 0:08:03.805,0:08:05.305 every semester. 0:08:05.305,0:08:08.003 With this blended class late last year, 0:08:08.003,0:08:11.984 the failure rate fell to nine percent. 0:08:11.984,0:08:15.747 So the results can be extremely, extremely good. 0:08:15.747,0:08:18.974 Now before we go too far into this, 0:08:18.974,0:08:21.626 I'd like to spend some time discussing 0:08:21.626,0:08:22.775 some key ideas. 0:08:22.775,0:08:23.986 What are some key ideas 0:08:23.986,0:08:26.843 that makes all of this work? 0:08:26.843,0:08:29.070 One idea is active learning. 0:08:29.070,0:08:31.510 The idea here is, rather than have students 0:08:31.510,0:08:33.696 walk into class and watch lectures, 0:08:33.696,0:08:36.738 we replace this with what we call lessons. 0:08:36.738,0:08:38.982 Lessons are interleaved sequences 0:08:38.982,0:08:41.663 of videos and interactive exercises. 0:08:41.663,0:08:44.842 So a student might watch a five-, seven-minute video 0:08:44.842,0:08:47.882 and follow that with an interactive exercise. 0:08:47.882,0:08:51.027 Think of this as the ultimate[br]Socratization of education. 0:08:51.027,0:08:53.007 You teach by asking questions. 0:08:53.007,0:08:54.511 And this is a form of learning 0:08:54.511,0:08:55.788 called active learning, 0:08:55.788,0:08:59.067 and really promoted by a very early paper, in 1972, 0:08:59.067,0:09:00.585 by Craik and Lockhart, 0:09:00.585,0:09:02.106 where they said and discovered 0:09:02.106,0:09:04.486 that learning and retention really relates strongly 0:09:04.486,0:09:06.235 to the depth of mental processing. 0:09:06.235,0:09:07.727 Students learn much better 0:09:07.727,0:09:10.915 when they are interacting with the material. 0:09:10.915,0:09:13.693 The second idea is self-pacing. 0:09:13.693,0:09:15.329 Now, when I went to a lecture hall, 0:09:15.329,0:09:16.619 and if you were like me, 0:09:16.619,0:09:18.585 by the fifth minute I would lose the professor. 0:09:18.585,0:09:22.165 I wasn't all that smart, and I would[br]be scrambling, taking notes, 0:09:22.165,0:09:25.356 and then I would lose the lecture[br]for the rest of the hour. 0:09:25.356,0:09:27.826 Instead, wouldn't it be nice with online technologies, 0:09:27.826,0:09:31.694 we offer videos and interactive[br]engagements to students? 0:09:31.694,0:09:33.425 They can hit the pause button. 0:09:33.425,0:09:35.916 They can rewind the professor. 0:09:35.916,0:09:39.015 Heck, they can even mute the professor. 0:09:39.015,0:09:41.069 So this form of self-pacing 0:09:41.069,0:09:43.694 can be very helpful to learning. 0:09:43.694,0:09:47.048 The third idea that we have is instant feedback. 0:09:47.048,0:09:48.525 With instant feedback, 0:09:48.525,0:09:50.380 the computer grades exercises. 0:09:50.380,0:09:52.675 I mean, how else do you teach 150,000 students? 0:09:52.675,0:09:54.969 Your computer is grading all the exercises. 0:09:54.969,0:09:56.503 And we've all submitted homeworks, 0:09:56.503,0:09:58.544 and your grades come back two weeks later, 0:09:58.544,0:10:00.168 you've forgotten all about it. 0:10:00.168,0:10:02.245 I don't think I've still received[br]some of my homeworks 0:10:02.245,0:10:03.730 from my undergraduate days. 0:10:03.730,0:10:05.077 Some are never graded. 0:10:05.077,0:10:06.571 So with instant feedback, 0:10:06.571,0:10:08.061 students can try to apply answers. 0:10:08.061,0:10:10.470 If they get it wrong, they can get instant feedback. 0:10:10.470,0:10:12.118 They can try it again and try it again, 0:10:12.118,0:10:14.051 and this really becomes much more engaging. 0:10:14.051,0:10:15.634 They get the instant feedback, 0:10:15.634,0:10:18.553 and this little green check mark that you see here 0:10:18.553,0:10:22.143 is becoming somewhat of a cult symbol at edX. 0:10:22.143,0:10:25.031 Learners are telling us that they go to bed at night 0:10:25.047,0:10:28.491 dreaming of the green check mark. 0:10:28.491,0:10:30.293 In fact, one of our learners 0:10:30.293,0:10:33.074 who took the circuits course early last year, 0:10:33.074,0:10:35.006 he then went on to take a software course 0:10:35.006,0:10:37.307 from Berkeley at the end of the year, 0:10:37.307,0:10:39.453 and this is what the learner had to say 0:10:39.453,0:10:40.725 on our discussion board 0:10:40.725,0:10:42.251 when he just started that course 0:10:42.251,0:10:44.772 about the green check mark: 0:10:44.772,0:10:46.829 "Oh god; have I missed you." 0:10:46.829,0:10:49.527 When's the last time you've seen students 0:10:49.527,0:10:53.988 posting comments like this about homework? 0:10:53.988,0:10:56.384 My colleague Ed Bertschinger, 0:10:56.384,0:10:58.554 who heads up the physics department at MIT, 0:10:58.554,0:11:01.398 has this to say about instant feedback: 0:11:01.398,0:11:04.399 He indicated that instant feedback 0:11:04.399,0:11:10.174 turns teaching moments into learning outcomes. 0:11:10.174,0:11:12.466 The next big idea is gamification. 0:11:12.466,0:11:14.367 You know, all learners engage really well 0:11:14.367,0:11:15.876 with interactive videos and so on. 0:11:15.876,0:11:17.141 You know, they would sit down and shoot 0:11:17.141,0:11:19.485 alien spaceships all day long until they get it. 0:11:19.485,0:11:22.272 So we applied these gamification[br]techniques to learning, 0:11:22.272,0:11:24.495 and we can build these online laboratories. 0:11:24.495,0:11:26.742 How do you teach creativity?[br]How do you teach design? 0:11:26.752,0:11:28.421 We can do this through online labs 0:11:28.421,0:11:29.698 and use computing power 0:11:29.698,0:11:31.287 to build these online labs. 0:11:31.287,0:11:33.675 So as this little video shows here, 0:11:33.675,0:11:35.140 you can engage students 0:11:35.140,0:11:36.747 much like they design with Legos. 0:11:36.747,0:11:38.665 So here, the learners are building a circuit 0:11:38.665,0:11:40.556 with Lego-like ease. 0:11:40.556,0:11:44.647 And this can also be graded by the computer. 0:11:44.647,0:11:47.581 Fifth is peer learning. 0:11:47.581,0:11:50.416 So here, we use discussion forums and discussions 0:11:50.416,0:11:52.516 and Facebook-like interaction 0:11:52.516,0:11:54.380 not as a distraction, 0:11:54.380,0:11:57.227 but to really help students learn. 0:11:57.227,0:11:58.944 Let me tell you a story. 0:11:58.944,0:12:02.170 When we did our circuits course 0:12:02.170,0:12:04.036 for the 155,000 students, 0:12:04.036,0:12:05.701 I didn't sleep for three nights 0:12:05.701,0:12:07.588 leading up to the launch of the course. 0:12:07.588,0:12:10.147 I told my TAs, okay, 24/7, 0:12:10.147,0:12:11.413 we're going to be up 0:12:11.413,0:12:13.287 monitoring the forum, answering questions. 0:12:13.287,0:12:15.260 They had answered questions for 100 students. 0:12:15.260,0:12:18.121 How do you do that for 150,000? 0:12:18.121,0:12:20.457 So one night I'm sitting up there, at 2 a.m. at night, 0:12:20.457,0:12:21.678 and I think there's this question 0:12:21.678,0:12:23.649 from a student from Pakistan, 0:12:23.649,0:12:24.977 and he asked a question, and I said, 0:12:24.977,0:12:26.433 okay, let me go and type up an answer, 0:12:26.433,0:12:28.041 I don't type all that fast, 0:12:28.041,0:12:29.605 and I begin typing up the answer, 0:12:29.605,0:12:31.299 and before I can finish, 0:12:31.299,0:12:33.973 another student from Egypt[br]popped in with an answer, 0:12:33.973,0:12:35.891 not quite right, so I'm fixing the answer, 0:12:35.891,0:12:37.859 and before I can finish, a student from the U.S. 0:12:37.859,0:12:39.468 had popped in with a different answer. 0:12:39.468,0:12:42.268 And then I sat back, fascinated. 0:12:42.268,0:12:44.215 Boom, boom, boom, boom, the students were 0:12:44.215,0:12:46.166 discussing and interacting with each other, 0:12:46.166,0:12:48.684 and by 4 a.m. that night, I'm totally fascinated, 0:12:48.684,0:12:50.152 having this epiphany, 0:12:50.152,0:12:51.408 and by 4 a.m. in the morning, 0:12:51.408,0:12:53.161 they had discovered the right answer. 0:12:53.161,0:12:54.888 And all I had to do was go and bless it, 0:12:54.888,0:12:56.854 "Good answer." 0:12:56.854,0:12:59.206 So this is absolutely amazing, 0:12:59.206,0:13:01.016 where students are learning from each other, 0:13:01.016,0:13:03.833 and they're telling us that they are learning 0:13:03.833,0:13:06.130 by teaching. 0:13:06.130,0:13:08.110 Now this is all not just in the future. 0:13:08.110,0:13:09.862 This is happening today. 0:13:09.862,0:13:12.179 So we are applying these blended learning pilots 0:13:12.179,0:13:14.920 in a number of universities and [br]high schools around the world, 0:13:14.920,0:13:16.706 from Tsinghua in China 0:13:16.706,0:13:19.138 to the National University of Mongolia in Mongolia 0:13:19.138,0:13:20.749 to Berkeley in California -- 0:13:20.749,0:13:22.108 all over the world. 0:13:22.108,0:13:24.132 And these kinds of technologies really help, 0:13:24.132,0:13:25.681 the blended model can really help 0:13:25.681,0:13:27.779 revolutionize education. 0:13:27.779,0:13:31.190 It can also solve a practical problem of MOOCs, 0:13:31.190,0:13:32.870 the business aspect. 0:13:32.870,0:13:35.186 We can also license these MOOC courses 0:13:35.186,0:13:36.925 to other universities, 0:13:36.925,0:13:39.489 and therein lies a revenue model for MOOCs, 0:13:39.489,0:13:41.878 where the university that[br]licenses it with the professor 0:13:41.878,0:13:43.715 can use these online courses 0:13:43.715,0:13:45.916 like the next-generation textbook. 0:13:45.916,0:13:48.371 They can use as much or as little as they like, 0:13:48.371,0:13:53.857 and it becomes a tool in the teacher's arsenal. 0:13:53.857,0:13:55.907 Finally, I would like to have you 0:13:55.907,0:13:58.748 dream with me for a little bit. 0:13:58.748,0:14:02.917 I would like us to really reimagine education. 0:14:02.917,0:14:07.042 We will have to move from lecture halls to e-spaces. 0:14:07.042,0:14:09.717 We have to move from books to tablets 0:14:09.717,0:14:11.543 like the Aakash in India 0:14:11.543,0:14:13.891 or the Raspberry Pi, 20 dollars. 0:14:13.891,0:14:15.898 The Aakash is 40 dollars. 0:14:15.898,0:14:18.812 We have to move from[br]bricks-and-mortar school buildings 0:14:18.812,0:14:21.433 to digital dormitories. 0:14:21.433,0:14:22.881 But I think at the end of the day, 0:14:22.881,0:14:25.123 I think we will still need one lecture hall 0:14:25.123,0:14:27.685 in our universities. 0:14:27.685,0:14:30.509 Otherwise, how else do we tell our grandchildren 0:14:30.509,0:14:33.904 that your grandparents sat in that room 0:14:33.904,0:14:37.128 in neat little rows like cornstalks 0:14:37.128,0:14:39.681 and watched this professor at the end 0:14:39.681,0:14:42.328 talk about content and, you know, 0:14:42.328,0:14:44.975 you didn't even have a rewind button? 0:14:44.975,0:14:47.203 Thank you. 0:14:47.203,0:14:49.194 (Applause) 0:14:49.194,0:14:55.945 Thank you. Thank you. (Applause)