Khan Academy and the Effectiveness of Science Videos
ฝัง
- เผยแพร่เมื่อ 18 มิ.ย. 2024
- My PhD: ve42.co/phd
It is a common view that "if only someone could break this down and explain it clearly enough, more students would understand." Khan Academy is a great example of this approach with its clear, concise videos on science. However it is debatable whether they really work. Research has shown that these types of videos may be positively received by students. They feel like they are learning and become more confident in their answers, but tests reveal they haven't learned anything. The apparent reason for the discrepancy is misconceptions. Students have existing ideas about scientific phenomena before viewing a video. If the video presents scientific concepts in a clear, well illustrated way, students believe they are learning but they do not engage with the media on a deep enough level to realize that what was is presented differs from their prior knowledge. There is hope, however. Presenting students' common misconceptions in a video alongside the scientific concepts has been shown to increase learning by increasing the amount of mental effort students expend while watching it.
Confusion is the sweat of learning
+Brad E ( . Y . )
I love this comment sir
What are you implying about sweat?
Jake D'Cruz When you workout hard, you sweat. That is normal. When you work your brain out hard, you deal with confusion. Again, perfectly normal. Just push through it.
Not necessarily, but I do see what you mean. :)
Khan academy helped me catch up in math and gave me the confidence in it to pursue a degree in aerospace engineering. I owe that guy a lot.
Kimberly W are you planning on working for nasa or space x?
Мики Ricky lol what the hell thats only one female engineer out of so many no ones writing reports and even if they are people aren’t looking at reports of all the completely content female engineers besides everytime there’s a structural failure it’s due to an engineer if a bridge made by some Indian engineers failed does that mean all Indian engineers are bad?
@@Ricky-zc8qm I can list so many successes by female engineers and so much failures by male engineers. nitpicking results prove nothing. Go back to the 1800s
Same here! Learned math and other courses from Khan Academy and MIT Open Courseware and on my way to a Masters in Aerospace Engineering that commences this august. Sal Khan for World President!
@@Ricky-zc8qm
What on earth are you talking about? Women can be just as fine engineers as men. I too can cite several such failures by male engineers, which, of course, wouldn't mean a thing. Cherry picking facts to support your preconceptions will get you nowhere.
9 years of math and 6 years of physics learned in 7 months thanks to Khan Academy and my dedication. I wouldnt be where I am if not for Khan.
Where are you?
@@alansolomon2064 huh?
@@alansolomon2064 as on which subject or physically
@@teos4664 you said "I wouldn't be where I am". Where are you?
seriously 7 months?🤔
TH-cam algorithm be like: hey this is 10 years old, you should watch it.
Fr
And even for today’s standards, it’s a really good video
😂😂😂😂😂😂😂😂😂
And you should!
OH NO THE AI WILL DESTROY THE WORLD
also AI: yo watch this vid this is pretty old
Thanks Derek, this video was clear, concise, and easy to understand. I feel more confident now!
***** Yeah, it really taught me about... why cats have strong hind legs?
***** Now I understand why all science videos are perfect!
***** lol
+MystyrNile
are you sure you understood it. or is it just what you thought already.
+MystyrNile Good one.
The voice XD
Why does this comment not have a million likes 😂
It's very weird not many people recognised you. I used to watch your paper analysis video years ago
Gotta like tibees' comment.
Idk why it is recommended now
I guess she mostly has indian and Australian followers. The intersection of those two set might not be subs to this channel. Hence
Important note: Khan Academy is way different now than they were 10 year ago when this was made. They have tons of useful practice problems for people to engage with the material
True
the exercises are still regurgitating type
students need a teacher to express teh more logical tidbits that a quiz for undertsanding cannot account for
e.g. a student. canunderstand that 2x = 6 --> x= 3 but then once you do 2x + 1 = 7, they might not be able to figure it out. It's still the same problem
@@duckymomo7935 i get what you’re saying, in this instance a kid can inadvertently learn about isolating the variable on one side but truly doesn’t know why they’re isolating the variable. Without the why, they simply wouldn’t remember or completely grasp the material. I haven’t seen what Khan Academy has now but it was like that on a lot of the subjects ten or so years ago, which made comprehension a little harder than a teacher getting into the nitty gritty.
@@shleeb896I fully agree with you on that one.
@@duckymomo7935 a little late but if Khan academy is meant for basics which the practice problems are perfectly alright for otherwise there are always books like irodov for people to solve on their own for tougher problems
Khan is to study towards a goal: the viewer wants to know the stuff to to pass exam and thus solve problems.
It's not for casual edutainment, where you first have to awake the desire to know.
That doesn't matter
edutainment?
Lmao if someone has to awake the desire in you to learn then you should probably drop that subject 🤣🤣.
Also, if Sal Khan can't awake the desire in you then probably no teacher can 🤣🤣. He makes studying interesting.
I was a pretty bad student back in the day. I put the fault of my terrible grades on the professors and the school system. But when I realized that I was the problem (it was me that lake motivation to study), I started to motivate myself to study and my grades skyrocketed.
In my opinion, students should learn everything on their own and professors should only be there to take doubts. So, classes should be optional. But I agree that we need a standardized test to see if everyone has learned the school subject.
Khan academy got me in flightschool, i learnt 4 year worth of maths in 2 months
How's flight school going for you now? I'm in the early stages of getting my career as a pilot started, it'd be interesting to hear your experiences so far...
+Tim T. Im half way through atp theory, khan academy got me into the ATPL course at Keilir aviation academy
yes
Where is the khan academy?
Dejvid Çera it's online but maybe they have a location? I don't know but google khan academy! I would send you an URL/link but Idk if it would pop up. khanacademy.org yeah it's self paced and I use it along with my math/science classes
I really like veritasium, though I must disagree here. Khan academy's videos may not be effective for some ''casual youtube watcher'' (for lack of a better term) who doesn't have any intention of actually gaining knowledge, but those videos are clearly not directed at them. They are there to reach people who want to actively study a subject like mathematics for example. Those videos are not meant to be used as casual public science education. I've been using these videos for the past year and a half or so while studying engineering and I've been making enormous progress with linear algebra, integral calculus, multi-variable calculus and even thermodynamics. Khan academy has even helped me study in advance some subjects in my mechanics of materials classes because of the advances I had taken with partial derivatives compared to my class and the only thing I can say about them is that their work is really effective for those who actually want to learn. The idea to talk about ''wrong ideas first'' is really not that helpful when you're trying to actually teach the right thing, especially in mathematics (though they usually talk about possible errors that might happen while calculating), and the idea of ''dumbing down'' their videos to help the general public would really be counter-productive for their purpose to teach in-depth mathematical concepts and others.
You bring up the math portion, but he specifically stated that the math side was effective, and that he was only addressing the science side.
The science side is also effective, I personally had a 95% in a thermodynamics exam which I owe to this channel. Though, I didn't quite get the part where he said the math portion was effective. I must have missed it I guess.
I'd still like to point out that science and mathematics are nearly undistinguishable, one does not simply expect to learn about science without learning about the mathematics that surrounds it so there is necessarily a lot of math related material covered in the science videos of Khan Academy. It's also the reason why I stated that their videos are not for ''casual public science [communication]''. Saying that Khan Academy should address the general public more efficiently is like saying university textbooks should be simpler to understand for outsiders with no science background. It's just not what it's designed for and neither is this the targeted audience.
Kevin White
All of that was addressed in the video. Math we don't know so we have to learn it. Science we start developing our own ideas about and those ideas tend to get in the way of learning, which is why the math section is more effective than the science section for the average person.
As for using it as a supplement, like you did, he states that it is effective early on in the video. So you're not actually disagreeing with him much here.
I'm not disagreeing with the fact that it's useful as a supplement, I'm disagreeing on the fact that he clearly stated that Khan academy should be addressing the casual youtube's public's misunderstandings while it's clearly not their target audience. You're missing my point.
Also, if you've ever watched a Khan academy video, their science part really is undistinguishable from their math part, so saying one is more effective than the other doesn't make much sense since they blend everything together really well.
Kevin White
Oh, I didn't understand it that way. My impression was that he was using Khan Academy as an example because it's such a good program that's highly effective and serves its purpose perfectly, but cannot reliably be used to teach people from the start because their personal biases will get in the way. I don't think he was even saying that Khan needed to change, but that's just my impression.
I have used Khan Academy and I love it.
Here we go fellas...10 years...it took 10 years to get to me👏👏👏
Better late than never
Believe me I've been sitting in classrooms all my life and have never understood anything coming out of my teacher's mouths but these simple TH-cam videos from Khan Academy or Organic Chemistry tutor have helped me alot in these recent years. Let's not forget the almighty "Math and Science tutor" these people are providing students with free content and great explanations in a short amount of time. If a student wants to dive deeper into a subject they can do more research or read more books.
It's amazing how many people in these comments appearantly also have a PhD in this exact same topic.
PhD in doing educational videos ?
I received a PhD in this topic as a prize in a box of breakfast cereal!
I have a PhD in your mom
That's the power of collaboration, people can raise new thoughts here.
VTS -NL you are right about that. but he has a Ph.D in this very subject, so where does this stand on that fallacy? at what point can we no longer call it a fallacy? he has been studying this for years.
The issue I have with veritasium's argument, is that he assumes the videos he showed are as equally informative or easy to understand as Khan's videos. I don't know about the science, but I've been going through the math modules, and he actually goes through practice problems. I follow along, pause the video, and try and get the answer before he completely works it out. It's active learning. Then I go on to the individual practice problems that test my knowlege. It's been working for me so far.
There are cases where kids do the math wrong, get the right answer, and then demand to get the question 'right' since their way apparently works. In these cases, even in math, a Veritasium approach is necessary, to show that their result was often a mere coincidence; otherwise, they think they found a perfectly valid way to do something when in reality they do not understand the concept at all.
Yeah, Khan academy has a different target audience.
Veritasium is harder pop sci, but pop sci either way... Khan Academy is hard science and you need to already be studying it to really understand what is happening.... It's meant to help with concepts in exams and practice and such...
+Jimmy Amato True, Veritasium is like Ted, he shares an idea that broadens your world view.
I think what you are assuming here is that the Student will engage in active learning. It is mentioned in other replies, but I would like to state it here as well that Khan Academy's videos are directed more at developed physics/science students ( as far as I am aware ) that have overcome the issue that Veritasium is presenting here already. I truly believe that both Khan and Veritasium's videos have a crucial role to play for students and science. While Veritasium is very good at introducing students to the idea of exercising humility when learning, Khan does an excellent job of further nurturing students that have already learned this trait. I think that Veritasium is simply trying to warn students not to jump into Khan's content immediately, and first actively look to identify and remove any misconceptions they might carry into the learning process by first watching videos styled in a way similar to his.
Just my opinion on it however.
I don't know how Khan Academy teaches Physics (would love if someone would point it out in reply), but in terms of Mathematics, firstly, as pointed out by many other people, the learning audience is completely different. They aren't watching the videos as pop-sci edutainment, like most are on TH-cam. They're doing it for academic purposes which forces them to either understand the lessons or fail the exercises and go back to rewatch the videos to understand where they went wrong.
More over, while watching Khan Academy videos, you're encouraged to do the lesson examples before you proceed into the lesson, which is when you're exposed to your own misconceptions. You will then compare both the procedure and the answer with Khan.
Also, Khan very commonly starts a new concept that you might have a misconception in with "well, at first you might think... Or otherwise try this... But as we can see...". How is that different to you going around in the streets asking people what they think. I think the difference is only that asking random strangers stuff might seem more fun. But then again, who's learning? A person seeking pop-sci edutainment or a person seeking acamedic advancement?
Finally, how really useful is gathering misconceptions from random pedestrians that have their education long diminished and forgotten? Knowing my own personal bias, I might dismiss their misconceptions as soon as I hear something like "dinosaurs and humans lived together". I mean, I get it, people watch the Flintstones, but if I'm learning, I think I want to re-evaluate misconceptions that I have with people that are also learning. Random pedestrians have no interest in learning, and when you explain something to them, they only react "wow, cool, I didn't know that". This isn't helpful, at least to me personally. My bias makes me assume "if those are the common misconceptions, then surely I have it down much better".
In Khan Academy, Sal Khan starts pointing out misconceptions as "at first you might think...", as I mentioned. This basically tries to mimick the logical thought process that you might have when you lack information. That's how, at least I personally, would be the most alert to re-evaluate my own misconceptions or see a slippery path that I would take a mental note in to watch out when solving problems.
My two cents.
.
Wow, I almost fell for this wall of a troll text. I want my seconds back.
@@AnimalSyndicate Troll text... Yeah, whatever floats your boat.
@@AnimalSyndicate you have an odd definition of troll text then. As another user of khan academy he summed it up really well and made a bunch of good points
@@TheNess667 @Pasijutau lietuviu esąs Ok, you made me read this wall of a troll text. Here is my take:
First paragraph: general observations.
Second paragraph. I've went over 50% of all mathematics KA has to offer and nowhere did I ever find encouragement to do the lesson examples first. If by that he means the practices.
Third paragraph: I don't know about which subject he/she is talking about, but that's certainly not for mathematics - fact. Mathematics really didn't go like that. I never, ever put effort into learning mathematics in school, but I greatly advanced myself from KA in mathematics. I'm about to finish a master's degree.
Also, any subject is created by a human in formats meant to be understood by humans. That is the way to study. Of course, if you learn something new, and try to phrase it, word it in a way that everyone understands is impossible.
Fourth paragraph: Yeah, you went a little overboard on this one. "misconceptions from random pedestrians that have their education long diminished and forgotten". I laughed a bit. I guess anyone can think of anything random out of imagination and put it in an argument. Sky is pink. Ha-ha? Really trying to hammer an argument that is flawed by non-existing basis. All the "gathering miscoceptions from random strangers".
I personally learnt calculus (all of calc one and most of two) through channels like 3blue1brown for the intuition and blackpenredpen for the method. I think it's important to use multiple resources and see different perspectives on similar problems. Learning this earlier than my peers gave me a huge advantage this year, where we were only just formally introduced to the derivative. Although, at least in my country, I wasn't satisfied with how we were introduced to such concepts. I feel like the education system here lacks the variety in method and motive that one can get through online resources, building a fuller understanding of concepts which otherwise would be seen as memorisation.
I did know about and have watched some of 3B1B (yet to watch the playlist) but didnt know about BlackPenRedPen so thanks for the unintentional recommendation lol
My calculus is in dumpsters as of now..
@@astha_yadav Will it cover from basic to advanced
As I am not introduced to calculus yet
@@average2amazing 3b1b is a good supplementary to normal coursework but I'm pretty sure even he has said his videos are not replacement for it. They provide a different perspective to solve problems and make it interesting but some of boring parts, formalities etc are glossed over. Best to find some actual courses to go through, watch these channels as a side. Also if you intend to continue with normal science/maths education calculus will be a part of your syllabus so you don't need to worry about starting early, unless you're preparing for Olympiads or something.
Khan academy helped me in math more than school
Zerabus it really is helpful for people who learn more by watching (some people learn better by listening)
Really not with the videos about the right? And mrs. Henderson helped me in art class
Was Khan academy a review for something you had already learned in school, or were you seeing the concept for the very first time on Khan academy?
The comment section on a lot of math/science tutorial/crash-course videos are "I learned way more here than in school" and they all have one thing in common: they learned it in school the first time around.
So watching the TH-cam video was probably a review where they picked up more than they did the first time around - like when watching a movie a second time.
@@777Skeptic Well, this is just my experience but I "refuse" to believe I am unique. I finished 1st semester uni with meh calculus grades. 2nd semester I studied on my own with but not limited to khan academy. My grades improved massively back to what I was used to in high school (still a bit less but that is expected). This will vary from uni to uni but those classes with teachers who know more about the subject than about teaching can be harmful to someone's education.
I haven't finished either semester bcs of some exams that were delayed due to covid but the results I got so far increased by about 7/20 from around 10 to 17 (averages).
Like you said, learning things a second time changes things a lot but I have first hand experience that some classes are indeed bad. I should also say it was the same teacher, same material organization, etc.
@@777Skeptic this might be uncalled for but I am currently starting 10th grade, but due to khan academy I have already finished 60% 12th grade mathematics, I haven't goen through it once at school, It was just khan academy
One of my college professors once said it would be really interesting if when he died, God was there, and he could ask any question he ever wanted to know. He would ask, "How many things do I know are true are actually wrong?" Consider it, we once knew that the Earth was flat; we once knew that time was universal and consistent; we once knew that mass and energy were not conserved. I live life knowing that what I "know" is actually just a best guess, really, based on the information I have available. I don't know how other people feel about this, but I really enjoy it when I learn something that blows my mind, especially when it was something I "knew" to be different.
+Logan Weeks stfu. Yes, it's relevant.
+Taylor Foulkrod its ironic that you said we once knew the earth was flat, because this is actually a common misconception and there is no real evidence of scientists ever thinking the earth was flat
Who deleted the idiot's comment? And why?
+Noah haoN There is no evidence from the past 3000 years in Europe and Asia, however many very old mythologies, as well as some modern day peoples (jungle tribes) do and did believe that. There is simply no record of it being a commonly held believe in civilizations. We also dont know anything about the believes of civilizations that existed before recorded history... To put it briefly, at some point before science, people might have thought so.
+Taylor Foulkrod This is an interesting idea! Scientific knowledge is only the best of what we currently know, it's constantly changing as we gather new data and evidence as we try to make sense of things!
Khan Academy helped me get my first job for usps as maintenance being an electrician technician! Later on, it helped me be in university, brushing up on math, helping me get my aerospace degree!
I remember watching this video years ago and the algorithm decided to revisit me today. I joined Khan Academy about 10 years ago. My life was going nowhere, I had no structured learning in science and math. I loved the maths curriculum at KA.
Eventually I ended up sitting for medical school entrance (for a publicly-funded spot, I was broke and have no inherited money to go to medschool like a lot of people these days). Anyway, I started working as a Doctor this year. It would never have been possible without Khan Academy. I make it a point to donate to Khan Academy every year.
Thumbs up if you're a Khan Academy student!
No thumbs up, but a comment, yes.
+
Alex Sánchez yup
Alex Sánchez
well I'm not a khans academy student
ofcourse the knowledge is good and free on the top
but being free doesn't mean worth wasting time on
Its way of Representation requires too much effort and time
and u will eventually forget what u learned in few weeks
so u have to keep up the effort for it
and I'm lazy
:)
I go to a high school school where the math class is literally sitting a room working on khan with our iPads , the teacher is there to make sure we are doing our work and to answer any of the students questions.
Interviewer: "Is the following statement true or false: Humans lived at the same time as the dinosaurs?"
Me: oh god don't say true
Pedestrian: *thinking*
Me: OH GOD DON'T SAY TRUE
Pedestrian: "l'll say true"
Me: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
exactly my thoughts!
birds are dinosaurs
LOL so funny OH GOD....
No, they aren't... That's not how it works. xD
Unless you were being sarcastic, in which case... I dunno, bird lives matter?
Derpy Hooves no, birds are direct descendants of dinosaurs
I am a 9th grader- I recently discovered this channel- Khan Academy- & I really love it. I have learnt a lot from that channel already.
I have used khan academy for about a year and I think it is awesome! As a curious 8th grader, I have tackled harder topics like differential calculus! I think it is the main source that made me become who I am today (This looks exaggerated but it's true, without it I would know much less about maths and physics)
It is awesome that you kept that idea of "starting with the misconception" even to this day in your videos. You are a legend...
Man, I'm a physics teacher, and sometimes I spent a lot of time wondering why my students couldn't absorb what I was teaching... Now it makes sense why... Your videos are the best!
How do you feel now, 5 years later
@@trimpta I feel that each student has particular affinities on different subjects, but no matter which area of study, active learning is the most effective. Activities that require the students participating fix knowledge, for emotions are better engraved on memory.
@@trimptagreat question!
Derek's research is incredibly informative and spot on! I have a question and two things to consider. Consider: 1) Khan Academy videos are not meant to "teach," but rather to "tutor." I have used Khan Academy through most of my formal education to help grasp topics that have already been introduced by the teacher, or are coming up on a test. Where as Veritasium's intent is to "teach." From a student's perspective, the intended use of the videos plays a big part in determining their effectiveness as educational tools. 2) Clearing up misconceptions is obviously an important thing to do; but showing misconceptions by quizzing people on the spot is something that should ONLY be used in videos, NOT in an actual classroom. Quizzing a class before teaching a topic can be detrimental. What happens is students that already know the answer, or have a preconception, participate in answering pre-lesson "quizzing" questions. All of the other students are alienated; from their perspective the students who attempted an answer have some "natural smartness," or extra ability. Leaving the ones with zero preconceived knowledge on the topic feeling like they are "naturally incapable," or dumb. This is often what turns off students from the maths and sciences in the first place. My question to Derek is: How does his research translate to person to person teaching? What can I do as a math and science teacher to clear up misconceptions while ALSO avoid pre-lesson quizzing (and further, alienation)
I disagree. He never mentioned anything about intrinsic motivation. I never took a physics class in my life until I did on khan academy and it allowed me to score high enough on a Clep test to enter physics with calc 1 where I now have an A in the course. I had all the motivation in the world because I’m trying to change careers from English teacher to engineering. Taking some random people off the street and trying to teach them physics... I mean his results say it all. But if you consider people who actually want to learn, which is nearly 100% of the people showing up to khan, you don’t have to have “misconceptions” to learn. Khan is an excellent resource for people who want to learn about almost any topic. I used it for calculus 1 and physics to jump start my engineering career after nearly a decade with no math or science. Without them I’d be completely lost.
Khan academy was different 11 years ago. Now they have practice problems and demonstrations. which help the student actually learn
I always love to see valid criticism even to things I like. I love what the people at Khan A. are doing, I like this video for the genuine attempt at bringing to light an issue related to them, and I like and somewhat agree with your comment for questioning the methods used in the video.
I think the problem with videos that are too easy to understand and don't require brain usage is real sometimes, because I've felt it, but the experiment in the video is not a good indicative for this problem. As you already mentioned, people might not be motivated to learn what they were presented with, and I think another big factor is the level of education you're at. Learning is a skill, at some point you start to know to distinguish what you understand from what you don't, what is easy and what only seems easy. You'll start to understand how much attention you need to put in the material before you master it and can apply it.
The experiment in the video seemed too trivial, involving very basic physics, a type of subject most weren't familiar with or invested in. A better experiment could be done at an university, with a subject students are already familiar with
This is an amazing video. I finally understand why I am not able to learn much from a lot of science videos. Humility is the way forward.
The problem, I believe, is fairly obvious: these people are not autodidacts. They do not know how to teach themselves. What do you think will happen if you throw ordinary people into the jungle? Obviously, some will pick up survival skills along the way, some will die, but none of them will instantly and magically learn how to fend for themselves in a certain situation just by being thrown into it.
Being an autodidact is not an easy task. Expecting "ordinary" students to suddenly achieve an autodidact's level of focus, patience and self-learning just by putting them into the same situtation for a few minutes is hopelessly unrealistic. You can't expect to beat an experienced BJJ fighter just because you're wearing a similar kimono. It's not something everyone can instinctively do from birth. It takes time to learn how to survive, how to find the information you want, and specially how to focus for long periods of time, sometimes going over the same few pages dealing with a given subject for days or weeks.
In short, you asked those people to do something they don't know how to do. They can watch the video and read the book, but they don't know how to absorb the content presented. They don't know how to survive in the jungle without a guide, they are just students. Autodidacts are more than that, they also need to be their own teachers, an experience you don't get from the system you come from.
The most important rule is that everything is important, nothing is irrelevant. There is always something you can learn even from the simplest video detailing a subject you're familiar with.
dante meriere You also have to emphasize that as an autodidact you often need to test yourself to understand where you are. In schooling system this is done one a basis of programme: x content for y days then z test, repeat, rinse with next magic level. It's also the point that you teach a whole class so there will always be someone more slower that will die off, it's just a brutal way of teaching people that dates back from long ago.
Also important is the humility you go through when trying to prove/test your knowledge for the sake of validating it and not for the sake of tomorrow's test because I will get some bad note and my mom won't buy me the nice car at the end of the year.
I wonder how this plays out at problem solving overall because I at least I am a self-taught person and I encounter many individuals coming with a background in University and just suck at solving problems but if you ask them of some formula and some concepts they are better at explaining that. Probably there's a lack of nicely connecting the material you teach others with the real world where it can be applied to solve problems and this also depends a lot on the teachers which most of them just suck...
+dante meriere The fact of the matter is, most people go to traditional schools and so don't normally learn in this method. I don't think Derek is trying to say that people CAN'T learn from videos unless their misconceptions are presented (he did a PhD on this - PhD's aren't some report you rush to do the night before it's due after all!). He is saying that if we want to teach people via video, we need to deal with the preconceptions that the majority of those we are teaching have in order to be effective teachers.
Sure, if you are making videos targeting people who were home-schooled or w/e and are practiced in self-learning, Derek's research may not apply. But most people aren't.
Also, he is talking from a teacher's perspective. From a student's perspective, we can do good if we focus and try to put our misconceptions behind us, even when the teacher is not helping us to do so.
It would be interesting to see a comparison with areas like computer science, where a lot of people just learn to code by mashing keys until it works, and while they may be able to make working code, they can't work well in a team because their code is ugly, and a whole bunch of other problems self-taught programmers tend to have. If you were making videos on good coding practice, presenting misconceptions may not be as important.
"Probably there's a lack of nicely connecting the material you teach others with the real world"
Knowledge and true understanding are different things
"The most important rule is that everything is important, nothing is irrelevant." This can be true to some extent, if your goal is simply to pass an exam. For many autodidacts, what is important for the teachers may not be important for *you*.
Let's say you are an engineer whose job is to write a code that computes f(x). You task is to know how to find x in the world, and how exactly is it defined, and how to convert maths to code, and what constraints the equations have and so on. How to prove f(x)=g(x)*h(x) may be less relevant to you. If, say, you want to make a projection, you only need to know formula for projective transformation, while sliding, rotating, scaling and so on may be less relevant to you at the moment.
For what it is worth, I'm an inventor who has taught myself many things which helped me to solve problems.
Can you suggest me for a way to make me focus and concentrate in something. I'm sure I won't remember this video tomorrow
It's interesting. The students don't actually disagree about the shape of the trajectory of the ball. They only disagree about the somewhat obscure concept of a force. Coincidentally, none of the videos seem to define what forces are.
In a sense, they're actually asking a deeper question. The multiple choice question/answer system provides no sort of nuance to explore these questions. Seeing it as "right" or "wrong" may not necessarily be a good way to explore physics or math.
Exactly, they have the wrong idea because they don't know how acceleration and force works.
Remember, force was a useful concept defined by Newton. It is not the same as the word "force" people have been using since antiquity. For example, the king had a *force* 5000 men strong, and he *forced* the enemies to surrounder.
Force in Physics is nothing but to cause a given amount of mass to accelerate by another given amount. Acceleration is nothing but second derivative of distance with respect to time. Mass is, again, not "mass" used in everyday language. It is a useful tautology invented by Newton to define force. In a sense, physics is all about how to describe the world rigorously, and to predict what we are unsure from what we know.
Right and wrong answers don't help children to build intuition. An exam can easily be passed by routing jargons, and doing exercises children don't know how to apply to the real world.
Classical mechanics is just awful.
I agree. I wondered how well understood the basic concepts were. If the students just don't know how those fundamental concepts work, a video debunking the misconception would serve a dual purpose in not only curing the misconception but explaining how the concept works. Once the student understands the basic concept, then you can ask them to draw a conclusion about a real life example. Once yu explain what resistance and force are and how they work, the you can ask a question applying those concepts to a real life example.
How long it takes the earth to revolve around the sun is a quiz type question that comes after explaining the revolution of planets. It just seems that people got the answer wrong, one because they just weren't thinking, but also because they hadn't actually learned about planetary orbits.
11 years later i have to say that this channel khan academy also has a french version which helped me very often in my studies as an engineer
This is the third time I watch this video and I don’t remember what it says, even though it was clear, concise and easy to understand. I forgot what it said and in the end, I got more confidence with my previous idea that Khan Academy is great.
This video is years old, and Khan Academy might have changed a lot during that time. But the way it works now, the students aren't only meant to watch videos, but do exercises which will function both as a way to practice and a way to check your understanding.
I'm a completionist, so I like to get a 100% on each of the little tests, so if I can't get it right, I have to go back and watch the videos over to review. So as it is, I think the system works pretty well.
Also, Sal Khan isn't the only lecturer. In their physics section there is at least one other lecturer, whose name I don't remember, who is also very good at illustrating both the wrong and the right way to handle different concepts, and common pit falls.
In any case, it's certainly important for educators to be aware of this phenomenon, not only for videos but for live lectures as well.
Edit: Oh, and Sal often asks the students to pause the video and attempt to solve the example problems themselves, which gives the students a chance to see the difference between their (potentially erroneous) methods and the one he's trying to teach.
That’s literally what he said in the beginning
@@universenerdd What, specifically, is "literally what he said in the beginning"?
@@roraraptor UniverseNerd is probably referring to the part where you said "But the way it works now, the students aren't only meant to watch videos, but do exercises," which is mentioned at 0:47 in this video:
"...he also emphasizes mastery, which I think is very important. So, students in the program can only move on after completing 10 questions in a row correctly..."
If I'm remembering my elementary school Khan Academy lessons correctly, at the time this video was released students were forced to answer 10 questions in a row, like the video says, in order to move on, unlike today, where those questions are optional.
@@wiiu42 Probably, but I don’t want to speculate. I was hoping they would let me know what their point was, since their statement alone is kind of meaningless. 🙂
the exercises are still regurgitating type
students need a teacher to express teh more logical tidbits that a quiz for undertsanding cannot account for
e.g. a student. canunderstand that 2x = 6 --> x= 3 but then once you do 2x + 1 = 7, they might not be able to figure it out. It's still the same problem
It takes a yee! :-D
He is an idiot, obviously it takes a day for Sun to go around the Earth once~
Rew Rose i hope you are joking.
Yeah but those are not kids lol, never mind physics but the earth revolution around the sun?? That's retarded
Matteo Rizzioli man that's criminal.
Khan academy much better than most available videos online, you cannot rely on them only but they will help students to study their own pace and that is the beauty of them and Khan's point is right, they have to go back to find what they do not know
Khan academy is amazing now. Much better it seems than 10 years ago.
Its helped me a ton in highschool sceince and maths btw.
7:56 "Joe, Put your trousers on!"
Gold.
@@penguiburst Joe was the guy talking, the brainpower he had to use to figure out the answer shot his pants to the ground
@@hayk3000 lol
Justin Die? Are Justin Y's creator?
Joe mama
i believe that knowing about this greately improves the effectiveness of science videos
because i dare say that now that i am aware of this i pay more attention and are more likely to doubt my own preconcieved notions
i watched the
"Best Film on Newton's Third Law. Ever." right after this and i was actively thinking about weather i have the wrong ideas about things
I had to re-watch this video then consult a khan academy-like video to better understand the concept of "gravity being the only force that affects the ball". Its feels more intuitive to think of the initial velocity of a thrown ball as some sort of a shrinking active force that is being applied to the ball, from the throw, throughout its trajectory--like the Asian dude in the second video explains. However, the math better helps show how when you look at the forces on the ball over time, it's only gravity whose force is consistently being applied to the ball. Like an invisible hand constantly imparting a downward 'throw' force on the ball, if you will. Honestly, I feel that the question itself here is a little overly construed, because I think that the entire goal of this exercise is merely to get the learner to divorce the idea of an object's velocity from any forces that might act on it to change said velocity. Funny how I couldn't find a single comment about this in the comments section after 10 years lol.
what would be the correct choice? A,B,C,D, or E?
@@sheershomustafa2631 Ignoring air resistance, it'd be C, downwards and constant, because the constant force of gravity is the only force acting on the ball. The whole time, no matter how fast the ball is going in what direction, it is accelerating downwards, rather than accelerating up or forward.
Sure, except if you already watched the veritasium video that says that gravity is not actually a force
@@Magesa If gravity was the only force, then the ball would immediately drop down. Throwing a ball only works because you can apply a force to it.
@@sheershomustafa2631 The answer is that it has a forward force and upward force that are decreasing after leaving the hand due to a constant force of gravity (anti-upward force) and inconstant air resistance due to the speed of the ball and the direction of the wind exerting multiple horizontal forces. Or you could just watch a monkey throw its turds. Even a turd throwing monkey isnt as dumb as the people who claim to have a phd in the youtube comments.
I felt something was off before realizing this video is 12 years old. TH-cam algorithm putting in work 😂
I feel that Sal's videos are quite excellent when you are filling in content gaps. For example, if you want to learn more about Carbonyl chemistry , most students watch the video to fill acknowledged gaps in thinking rather than gaps they aren't aware of. You watch the video and learn the mechanism, you do the in video practice, and you apply the learning to your problem set. I can see this inactive learning and presumptive process occurring in kids in situations where the videos are mandated (and thus the interest and self motivated learning is non-existent) , but if someone is using the videos to fill in gaps, I don't see how they present an educational conundrum in the slightest.
Exellent... thats how i actually teach my students. its interactive, i ask them questions and make learning enjoyable.
Those who think 'Ah, this again' will never learn a thing... But those who think they don't know everything and passionate to learn, will learn something new everytime they watch the same video...
More than the source, the attitude of the recipient is important..
Gotta love when TH-cam recommends the very inception of this stellar channel.
HOW AM I ONLY FINDING THIS ACADEMY NOW???! This is the best thing that happened to mankind!
Madness combat
Well, I got the question right and my first exposure to physics was on Khan Academy. I passionately hated the traditional school environment and shouldn't even have graduated high school. Until discovering Khan Academy a few years ago, the extent of my mathematical and scientific knowledge was multiplication and photosynthesis. I now have a solid understanding of quantum physics, calculus and linear algebra. All of which I owe to TH-cam University.
Tyrone Slothdrop bad teachers?
Bad everything; the traditional school environment as a whole. The mechanical monotony of the day to day, compounded with the constant distractions and antagonisms of social drama.
It works. I kinda like school though. I guess it comes down to what works for you.
Tyrone Slothdrop i feel the same way you did, i am a high school senior and i have good grades but i hate going to school, it is boring, so boring that it depresses me, just like you said, i guess it is because of the mechanical monotony of the day to day.
I want to graduate high school soon, hopefully college won,t be like this.
You have a solid understanding of quantum physics? That means you haven't understood anything, mate.
Khan Academy is great because he starts with fundamentals and builds knowledge in small steps allowing one to make new connections in their memory, thus better retaining the information.
Being very ADHD, I often hear without listening, see without looking, and read without paying attention. I have to re-read the same page 5 times sometimes because my mind wanders as I read rather than putting it together. When I re-read something after this happens, I remember all words but no sentences.
Because of this, I enjoy listening to videos on 2x speed because it's more engaging and doesn't give my mind time to drift between words.
When using Khan (which I've found very useful thus far) I'm mindful of these very frequent attention lapses, and I catch my mind wandering and rewind to well before the last part I was actually paying attention to. Sometimes I have to rewatch something multiple times, and I often pause to verbally repeat concepts in different words or say how this ties into a related concept. I personally find this approach works very well for me and I'm curious if that's because it's less passive a process than the way you're assuming (possibly correctly) the way most take in video lessons.
This website is absolutely great. Im learning trigonometry in middle school now.
And this video is 10years old tf genius he is
This is a phenomenal observation...and is probably why, even after having watched hundreds of documentaries, I often still get things wrong. It’s because I mentally turn off when I’m seeing something I think I already know...it’s too passive. Although the inclusion of the misconceptions is still objectively a passive experience, overall, subjectively, my mind is working harder now...I’m more engaged, because I’m presented with my own misconceptions...which helps me to remember it next time. It also reinforces my inherent belief that I am smarter than most other people 😂 (JUST KIDDING)
The global online education industry should pay very close attention to videos like this as this is what teaching is really all about...... "Learning how we learn" and them improving as much as we can
I think learning by will is what really differs from those experiments and real life. In the videos, the students might not be willing to learn a lot, maybe they just wanted to be a part of it... If one is opening Khan Academy with the will to learn, I am sure they would listen everything carefully.
I think one problem that I've noticed is not that videos are passive in teaching, it's that students are passive when watching a video. this goes to your "utmost attention" point.
In a class based on the politics of a funny and very political show, the vast majority of students would reference the reading from the previous night, rather than the episodes they had just seen.
I think it's that people have no idea how to, or no interest in, actively watching movies, videos, or television. when I ask people what they thought of a movie, they can tell me if they liked it or not, but often they don't have a clear reason why.
there, enjoy a wall of text and learn nothing by the end.
But Khan goes through practice questions. The great thing about streaming, is that you can pause the video. This gives you an opportunity to try and get the answer right before Sal works it out. If you get the wrong answer, you will be paying more attention than usual to see where you went wrong.
+John Smith yea,what I love about video is that I can play,pause and replay as I wish
thats the thing that I cant do in real life,since i have a very very short of attention span ,after few minute my mind will go somewhere and I will forgot to pay attention and thus missed something
thats why I really love youtube with its educational channel
To Veritasium and to all the great science TH-camrs who inspired me,
When I watched my first ever science TH-cam video in 7th grade from Minutephysics, it was mind-blowing. I literally spent hours thinking of what the video was about and searched on the internet to find more about it.
I watch videos from Veritasium, Minutephysics, and many other TH-cam channels, one thing I love in particular was that they always caused me to drift off from my school works and spent hours thinking about it. When I first watched many of them, they were confusing, but there was a deep and strong desire in me that I just wanted to understand. I often took a lot of time for me to understand them, but once I understood them, there was a strong satisfaction. What I learned became what matters to me, instead of just something I have to know. To many great creators out there on TH-cam, you opened a door to me and inspire me to have a deep passion in learning.
All of my teachers who cannot explain anything clearly: ‘see, I’m actually a wonderful teacher’
I think another issue might be that we watch these videos casually with little focus ( without a pen , paper , a study/focus mindset, a proper desk setup )
- if I watched math videos to prepare for an exam, maybe I would be as focused as I am in a classroom
Thank you derek. This went straight off my head.
Needed this one. I am exactly one of those students trying to understand my way through early physics. It hard. Fascinating, but hard.
How very awesome of you to share your PHD. I'm reading through the first pages now, and it's good stuff.
Good video. I should've seen it sooner. It demonstrates the quality content you've consistently been putting out there for years.
Just commenting for everyone who suddenly got this in their recommendations 10 years later.
This is a critique of the Khan Academy TH-cam channel from 10 years ago.
It's not relevant to Khan Academy, the free education website of today. Khan Academy is much more than just watching videos.
Actually those comments are a prime example of how correct this video still is. People came with a certain preconceived idea about the video didn't even pay attention to the date on which it was uploaded.... basically proving him correct in every conceivable way.
Ironically, it only takes reading through the comments section of this very video to see how extensive the problem described in the video really is. There are many insightful comments here, but a great deal of them are nothing more than defense of the very misconceptions the video explicitly calls out! Are there studies comparing video learning to classroom which indicate the value of an instructor actively providing feedback? I like the idea of providing examples of common misconceptions, but I often observe that the same false confidence that will allow someone to overlook the logic of a correct explanation will often work just as well to ignore attempts to explicitly call out the misconception. Interaction with an instructor gives an opportunity to walk a student through their own thought process to the point of being forced to confront a logically impossible situation. It's hard for a video to stumble upon the exact collection of words necessary to steer the thought process accurately for any one person's misconception, let alone all potential viewers. That said, I think videos can be a great learning tool when there are few misconceptions to overcome.
Of course a good instructor can be very helpful and possibly better than a video, for the reasons you explain.
But there are also bad and mediocre teachers, and they represent the massive majority, and that’s how videos presented by expert teachers are, by and large, better than a teacher. Consider the effort that goes into producing a teaching video compared to a barely awake teacher clinging to his coffee cup, just trying to make it through the umpteenth Time he has had to give this particular lecture, and he himself is not very inspired by it.
I will summit up. It is way better to be taught by an expert even if by video.
You can’t possibly be defending the current public education system with its herds of incompetent and mediocre teachers. They are not helpful at all, they actually damage education.
Thats nice. 11 years but great video!!
Thank you so much for sharing, Derek!!! This could be very useful to keep in mind as I plan lessons during my student teaching.
In a few words, what this says is:
You have to be humble in a way to learn.
What this teaches is:
Most people start in a very much arrogant position, so, you first have to break their arrogance (and make them understand they are just stupid 😂) and then you teach them what is right.
Basically what parents did when they first gave you a slap in the ass and then taught you how to properly behave. xD
Great PHD study case, Veritasium. I certainly will not forget what your study has shown and will acknowledge it both when learning and teaching something. Thank you!
I have to disagree about the purpose of the khan academy's videos. The videos you showed to the people may not be uninteresting, but the people don't have anything in for it. thus not paying any attention doesn't hurt them or they don't gain anything useful.(maybe some academic knob -information). People are inherently lazy. If learning something doesn't make profit in immediate future, they will not want and wont learn it. ("knowledge because of knowledge" is a rare thing.)
The users of khan, AK lectures,Doc Physics,lasseviren1, or similar,_have_ to understand the topic, or fail the semester/year/life lectures. This why there must be no misconception in the videos. It would only cause confusion. And these people have something in the line. Like their whole career.
Put a 1k$ bet for the video watchers and try again. I thing the learning curve will tip over towards the straight forward video.
I second you. The viewers of Khan academy 'want' to learn whereas the people in the survey really haven't got any reason to pay attention.
You do have a point but it and I say its quite true that its common that people don't engage in an effortful task unless it has immediate rewards. But what you're missing is as the above comment mentioned, is that people GO to their channel they aren't forced or asked to do so, which could most likely mean they're there to learn, but the surveyed people were approached thus you cant really say they want to learn and your statement could hold true about these people.
napiton Well, I thing you are precisely missing the poing of this video. The point is to learn correct facts; that is the whole picture right? Well, that video states that stating the correct fact is less effective than breaking the wrong facts then stating the right fact. Whatever their motives, who they were, the tested people did understand the fact better with the second method. And you are telling users of khans will be less receptive to the second method, worst it will cause them confusion. Are you stating they are stupid? That they don't have any previous knowledge? Or that they are not humans?
I hope we can agree that education is a very complex problem and we should not spare any effort to make it better. History proved misconception is a huge enemy of science even that science is all about searching errors in what we think we know, a.k.a. learning new things. Education is just personal learning of new things and shouldn't be treated any different. (When I say history, I'm speaking about people thinking Earth is round and that kind of facts (this was a fact back then).
napiton The point of this video and the experiments described is that people don't learn by watching clear, concise and understandable videos that do a good job of explaining something. Videos that first go over misconceptions before explaining things correctly are more confusing, but they do a better job of teaching. Rewatch the part after 5:47.
The point of this video can basically be simplified to the five points he makes.
Omg I just realized what you do. So, on ur past videos I noticed that when I listen to the misconceptions, I don’t think they are funny, instead, I feel embarrassed. Not necessarily (although sometimes )because I had the same misconception, but probably bc of empathy. Now I realize that this negative feedback unconsciously promotes my brain to work, it’s like a cognitive dissonance my brain copes with, and in the process of it I actually learn. “Oh, this thing again” is very familiar and yes, an explanation does seem more truthful bc it was repeated many times. Thank you man
I use all typed of science videos to learn. Often they present totally new ideas to me, and demonstrate how those ideas work. It really helps to RE-WATCH a video several times. A video can gives such a new idea that one can invent something from the new concept. Me: a low cost artificial knee for mine victims...I didn't know there was a problem, until I saw it on the history channel. Then I saw a solution to that problem. I developed something strong and inexpensive...that worked. I have many patents.
So obviously Khan academy videos work unequivocally. Just as I suspected. Thanks for proving my preconceived ideas! ;)
All joking aside, this was really valuable to learn. I'm going to see how I can implement this technique of emphasizing the misconceptions in how I educate people (both online and in the classroom).
Veritasium : mentions Khan
Every indian ever : whomst has summon us
@USA companies hv INDIAN bosses,soSTFURACIST lmao I am indian too dumbo
@USA companies hv INDIAN bosses,soSTFURACIST and it's a meme so idfk
You dumbhead
He is half Bangladeshi, u know
Even Gengis had an" khan" in his name. Did that make him an Indian?
Thanks to this guy i got my PHD in Sub-Aeronautical Bio marine Space Engineering .I owe it all to this guy !
I was constantly re-reading a topic on chemistry and still didn't understand. I found Khan Academy and got it right after some pauses and watch. 2h class + 2h reading didn't hold a candle to what a concise video could provide in 10m.
I don't mean to say that school or traditional teachers are useless but if you could have videos explain the universal basics and then teachers supplement, that would be amazing.
I totally agree with Derek but the same effect of tackling misconceptions can be achieved by focusing on mastery. It's like you read the chapter of a textbook and then you go and solve the exercises but at the beginning you fail almost everytime and then gradually as you keep doing the damn questions and try to solve the exercises, you get the correct answers (and along with that you see what you did wrong). Perhaps the most effective way would be to tackle misconceptions and say to students how things are not (not only how things are) during the teaching period and then achieve mastery through lot's of exercises and problems.
.
It's really interesting that after 10 years, this video has new relevance in the age of misinformation and the recommendation algorithms that reinforce the confidence in falsehood.
When I was staring to learn science (2009 to 2012) from a 3rd world country (Bangladesh), Khan academy videos were invaluable to me!!! English was my second language, so I had to watch and understand the videos seeking back and forth and paying my 110%.
I was and still (probably) am a dumb student pursuing my PhD in EE now and I thank Salman Khan for his amazing videos and advancing my career to such a height!
I think the difference with the videos that questioned previous misconceptions and those that don’t is immediate feedback. This is why I think watching videos may not work, but if someone is tested, and told the results of the test, they will experience greater benefit from watching the video a second time.
But Khan Academy has actually improved my test scores. I am Kausik from India and I really like the videos of Khan Academy. Many people have liked it. It has helped me in excelling in my Science exams. It has helped me understand thing quickly. You cannot oppose it like this.
But matters the most is writing!!! JUST WRITE WRITE AND WRITE!!!
PBS Spacetime is a great example of the better science channels
Yes!
And eons
There is an TH-cam channel named NPTEL that is run jointly by indian institutes of technology and that channel has over 30000 videos on almost every subject from Relativity to Nanotech from Mandarin to Japanese from Number theory to paradoxes........with every video at leat an hour long
And there is another indian TH-cam channel named "Adda 247" with almost 30000 one hour long videos dedicated to Humanities and there are other indian channels like Unacademy , Physicswalla, and vedantu with almost a million videos 2-5 hour long dedicated to providing free education to masses............👍👍👍👍👍
Holly cow, I click on it since I wanted to know more about Khan academy and saw the video was from veritasium, but got shocked how old this video is.. you improved so much!
I found I could learn from videos when I applied note-taking followed by researching any questions I had through the video. It's a tedious task and most the time its difficult to push myself to do it but once you get into it you can grasp quite a bit more than youd expect for just being on your own. Also, just buy an up-to-date textbook!
When looking at behavioral sciences and learning science, all the data suggests that the effectiveness of the mode of learning is mostly up to the learner.
That's good
When you presented the basketball question I was definitely in the camp of thought voiced by the asian guy in the misconception video. Even after watching the whole video I was still convinced of my initial thinking. It was actually kind of distressing. I was thinking 'Is Science MAD? wtf?' I had to go back to the beginning of the video and hear the question again. "...AFTER the ball leaves the players HAND..." If I pay careful attention to the wording then I think ok, the hand is only applying force as long as it touches it, whereas gravity is constant. The video afterwards with the Australian lady is even more confusing because she says " now consider a case the gravitional force is the only force acting on an object"; based on what I know if that were the case the ball would never leave his hand unless to roll off and fall to the ground. Gravity does not cause balls to fly upwards. So that brings me back to what I was initially thinking. Like why is the ball going up if no force other than gravity is acting on it? is it inertia? so the initial force isn't being applied, but that force is still the cause for it's upward flight path. Technically the initially force is not "acting on" the ball...but it's really not surprising that anyone would get that question wrong. It seems as much a problem of language as of understanding concepts.
force acceleration velocity 3 very different things
I can see the deal here. See, in physics wording is an extremely important thing. I have learned this the hard way by endlessly learning things the wrong way.
I agree. This is a very poor question to illustrate the video. The question is entirely semantics, which may be the point of the question, to show that the velocity of the ball is not considered a force.
I think videos like the ones on Khan Academy are best used as a review or as a supplement to a class you’re taking. It helped me a lot in calculus when I could go to lecture in the morning and hear the information again in the video.
I think the point of this video is not about Khan’s, but for any video used alone as learning material. I am an adult and subscribed some years ago to Khan’s academy to refresh my memory on some notions useful in my professional life. The videos are nothing without the apps or web site: do the tests,practice, and go to material (written or video or whatever) when doing mistakes or when exploring new fields of knowledge. And the combination is quite effective. It does not offer the interaction one may have with a teacher that could help a student spot the reason for the misunderstanding, but they do a good job at ramping up the difficulty and making sure prerequisites are mastered.
Great work, mister Khan !!
Who else randomly had this in their recommendations 9 years later
I know Derek is a really positive guy and he has such great insight for educating everyone. This is just him pointing out the obvious fault that causes misconceptions among youth and students, he has spoken about it because he doesn't wanna let people have more wrong concepts.
Yeah, alot of butthurt people in the comments here, lmao.
I never thought Derek can also mimic someone like this much perfect:))))
As an educator and have taught science I whole heartly agree!!! This video rocks!!!
7:50 This kinda summarizes youtube for me...
As far as learning through science and technology videos, wether or not they are generally helpful... I'm extremely lucky to have a personality that allows me to very easily absorb and apply information that interests me... These kinds of videos are extremely useful for someone like me to study at my own measure.
I like talking to my science teachers about things your not supposed to learn in that course because it is too "advanced" or specialized for the course, but interesting.
Sadrien Nightshade I like learning those things, but I'm always offended when I find out later that they masked the truth from me as if I couldn't handle it. just a pet peeve.
Tim T. your teachers seem annoying if they do that lol.
The Illinois school system is annoying. But a few teachers are too.
this reminds me of a much newer veritasium video - that one was about why our snap judgements are so easy to lead astray... and i think these two feed into each other perfectly
confusion is the first step towards learning because it means that we have to engage the part of our brain that does the energy intensive and hard part of thinking things through
This is what most teachers need to realize. Giving kids an answer or telling them how stuff works is half the effort and half the result.
I bet you if classes were taught correctly, getting 50% would be the bare minimum you could score. Because when you're challenged, you'll actually remember something.
This is why I love your video's. when you see people making mistakes and then the explanation follows, you're picking up the thought process much quicker. I don't remember everything from your video's obviously, but I'll take a lot of bits an pieces out of everything allowing me to construct the logic or theories around them.
I really can't thank you enough for everything you've made and clearing up a lot of topics I never learnt at school or learnt wrong.
[Disclaimer: I do not have a PhD in this topic]
My inexpert thoughts are that if a person is seeking knowledge then Khan's videos are indeed a wonderful resource (as are yours Derek). Perhaps when students are made to watch videos, as they themselves are not seeking the knowledge, this is where the problems start. I would imagine that there are always a small percentage of students who absorb most of the video's content correctly. The real question is: how do we motoivate students to feel motivated to seek out knowledge themselves?
If they need motivation they shouldn't be studying that particular subject anyways.
Exactly!!! He is comparing his videos, which is completely different and probably inefficient, and concludes that khan video's are ineffective. It's like saying : People don't understand my videos, therefore khan's academy video must be also be useless
I think I commented on this video already. I do agree that watching videos is not very effective on its own. But Khan’s approach of having the mastery tests to unlock the next levels does (at least to some extent) address that. If you feel comfortable with the notion but still can’t answer properly, then you have to admit you missed a thing or 2. I tried Khan’s (and contributed $) on maths, it reminded me how painful learning really is, and how much patience it takes. But it was a good refresher on some concepts I needed in my job (I am >40y old)
I learned college level algebra from last fall to last winter on khan academy and I made an A this spring semester. I sucked at math as a senior 8 years ago, so that says a lot. Its free so yeah, it takes discipline to actually study and learn the material on your own time. It really works and I recommend it absolutely!
Don't know about you guys but Khan Academy made math easy for me.
10 years ago and Tibees commented
Interesting to see dialogue be more effective than exposition, as is usually the case for exquisitely crafted storytelling in movies and TV shows (in my experience.)
Awesome PhD research!!!
The attention thing when you already know something applies to other subjects too. Thats why Khan Academy is really cool because everything is written in one take. I always increase the speed to 2x when I already know something. The lessons are split up into 4-10 minute videos so my attention span has to be more than 4 minutes which is pretty easy when youre desperate to learn. I cant imagine focuing for more than 10 minutes while reading a book
As a teacher, misconceptions, especially in mathematics, are the enemies.
I completely agree