The Dangerous Mr. Khan
151–160 of 253 posts
Re: The Dangerous Mr. Khan
#152Khan's physics videos are no better. Excerpts below from my series taking a critical view of Khan Academy: http://bit.ly/khancritic ... Ironically, Khan's TED talk is in stark contrast to two previous TED talks: * Dan Meyer - Math Curriculum Makeover http://bit.ly/DanMeyerTED * Sir Ken Robinson - Do Schools Kill Creativity? http://bit.ly/SirKenTED According to Dan, today’s math curriculum is teaching students to expe…
2 million unique students are viewing our videos every month by choice (as opposed to being forced to attend class by the state). Read any of the thousands comments on our YouTube or Facebook page and the underlying feedback from students is that they are finally getting the "why" at the Khan Academy as opposed to the "memorization-paint-by-numbers-what" in their classrooms. Do we think we're ideal? No, we're constan…
I think torque2's point is that the way they teach physics cannot be encapsulated in a YouTube video. Physics teaching based on the last 20-years of PER requires engagement of prior conceptions and inquiry-based activities (to name a few key findings). This cannot be done in the type of teacher-centric videos you're giving. I'll admit that your lectures are awesome... but they're based on a learning traditional that has been proven to be ineffective relative to student-centric environments by a couple decades of education research.
I had a serious question that I hope you'll answer: "When you learn the physics required to make a video, do you just watch MIT lectures or do you go out and actively search for and build your own understanding of the concepts? Do you talk to other people about the ideas you have and what they think about the subject? In short, do you have a conversation with the material, or is the material hand-fed to you from a video?"
Thanks for all your hard work Sal, it definitely has a place in a learner's experience... it just might not be the place it's currently being touted as in the media.
Re: The Dangerous Mr. Khan
#153Khan's physics videos are no better. Excerpts below from my series taking a critical view of Khan Academy: http://bit.ly/khancritic ... Ironically, Khan's TED talk is in stark contrast to two previous TED talks: * Dan Meyer - Math Curriculum Makeover http://bit.ly/DanMeyerTED * Sir Ken Robinson - Do Schools Kill Creativity? http://bit.ly/SirKenTED According to Dan, today’s math curriculum is teaching students to expe…
2 million unique students are viewing our videos every month by choice (as opposed to being forced to attend class by the state). Read any of the thousands comments on our YouTube or Facebook page and the underlying feedback from students is that they are finally getting the "why" at the Khan Academy as opposed to the "memorization-paint-by-numbers-what" in their classrooms. Do we think we're ideal? No, we're constan…
The whole point is not who can make better video lectures. The point is why lecture at all?
I wish the world would see my YouTube video about Modeling Physics (and resources) here: http://bit.ly/ModelingPhysics
I wish the world would see my 13 other videos showing Modeling Physics in action: http://vimeo.com/channels/modelingphysics
I wish the world would read my post on pseudoteaching: http://bit.ly/MITpseudoteaching
I wish the world would read my posts on standards-based grading, which allows my students to show growth and mastery in physics: http://bit.ly/SBGposts
One of my pseudoteaching posts talks about how forward thinking universities like MIT (your alma mater) are switching from lecture-based physics to a more interactive model like Modeling. The research on Modeling is there, please don't ignore it: http://modeling.asu.edu/modeling/Mod_Instr-effective.htm
More research --> The 3 key principles from "How Students Learn: History, Mathematics, and Science in the Classroom" are:
#1. Engaging Prior Understandings - "If students’ preconceptions are not addressed directly, they often memorize content (e.g., formulas in physics), yet still use their experience-based preconceptions to act in the world.
#2. The Essential Role of Factual Knowledge and Conceptual Frameworks in Understanding - "What novices see as separate pieces of information, experts see as organized sets of ideas."
#3. The Importance of Self-Monitoring - "Appropriate kinds of self-monitoring and reflection have been demonstrated to support learning with understanding in a variety of areas. In one study,15 for example, students who were directed to engage in self-explanation as they solved mathematics problems developed deeper conceptual understanding than did students who solved those same problems but did not engage in self-explanation."
You can read the entire book for free: http://www.nap.edu/catalog.php?record_id=10126
Modeling Physics does all 3. Your videos are 0 for 3. Badges do not count as "self-monitoring" in any meaningful sense.
You also have no hard data (as of yet) as to the effectiveness of your videos. Just anecdotal comments from students. You have no controlled studies. In fact, controlled studies show that video lectures are rather ineffective. See Derek Muller's video abstract and research: http://bit.ly/KhanEffectiveness
I'm not trying to be mean. I think your videos can be a resource for some teachers/students. But using video as the primary method for content delivery is ineffective.
We should not have to "flip" lectures and HW in order for students to be more interactive in class. When inquiry is done right, the interaction is already built in.
I'll stop there, before this gets too long.
Thanks for your time, Frank Noschese (aka torque2)
Re: The Dangerous Mr. Khan
#154Earlier quoted context omitted.
2 million unique students are viewing our videos every month by choice (as opposed to being forced to attend class by the state). Read any of the thousands comments on our YouTube or Facebook page and the underlying feedback from students is that they are finally getting the "why" at the Khan Academy as opposed to the "memorization-paint-by-numbers-what" in their classrooms. Do we think we're ideal? No, we're constan…
Well if you want to pay great teachers to produce science videos, I would start by offering this guy a lot of money. Or at the very least, please watch the whole video because it explains one massive problem with video science lessons and how to partially fix the problem. http://youtu.be/eVtCO84MDj8
With respect to the Khan Academy, it would be interesting to see tools that provide a kind of interactive exchange of preconceived ideas and then helping to break them down. Having tests after the exchange would then help provide great metrics on the retention and understanding of the subject.
In any case, 1veritasium has at least provided an thoughtful response to the Khan Academy. He recognizes a good thing but provide some nice constructive criticism that could certainly improve what the Khan Academy already could offer. So as someone who enjoys Sal's videos, this idea gets a +1 from me... You know, as just some random person on the Internet ;-).
Re: The Dangerous Mr. Khan
#155Khan's physics videos are no better. Excerpts below from my series taking a critical view of Khan Academy: http://bit.ly/khancritic ... Ironically, Khan's TED talk is in stark contrast to two previous TED talks: * Dan Meyer - Math Curriculum Makeover http://bit.ly/DanMeyerTED * Sir Ken Robinson - Do Schools Kill Creativity? http://bit.ly/SirKenTED According to Dan, today’s math curriculum is teaching students to expe…
> Rather than instructing students with Khan’s videos, teachers should be inspiring them to figure things out on their own and learn how to create their own knowledge by working together. What's curious about this critique is that it sounds almost exactly like what Khan advocates in his recent TED talk (here: http://www.ted.com/talks/salman_khan_let_s_use_video_to_rein... ) In it, he advocates flipping the traditiona…
Re: The Dangerous Mr. Khan
#156Hi Everyone, This is Sal here. I wanted to respond directly on the author's page, but they seem to be having a problem taking comments. The reason why I make history videos is that many people I know (many of whom are quite educated) don't even have a basic scaffold of world events in their minds (or the potential causality between events). Most American high school and college students would find it difficult to giv…
Precisely! One of the things that appeals to me about your education model is its democracy. Anyone who wants to learn and commit the time for it is free and welcome to it.
The Education Profession has managed to create a number of gates and gatekeepers in an apparent attempt to control access to education and to control whom learns what. That model was somewhat shaken when the printing press was invented and then a little more with digital media and the internet. It maintains control through the accreditation business and the granting of degrees.
My kids have taken some online college courses and it appears that few traditional universities really understand how the make the most of online media, because those courses were so poorly conceived and executed. The Khan Academy is a stark and shining contrast to those.
A college degree remains, as the equivalent of yesteryear's high school diploma, the ticket to getting employed in many of the better jobs. It is my hope that someday there will be an open, free (or extremely low cost), accredited college degree program available to everyone who has access to internet!
I think it is awesome that a guy like Sal is the "rock star" of the future.
Re: The Dangerous Mr. Khan
#157Khan's physics videos are no better. Excerpts below from my series taking a critical view of Khan Academy: http://bit.ly/khancritic ... Ironically, Khan's TED talk is in stark contrast to two previous TED talks: * Dan Meyer - Math Curriculum Makeover http://bit.ly/DanMeyerTED * Sir Ken Robinson - Do Schools Kill Creativity? http://bit.ly/SirKenTED According to Dan, today’s math curriculum is teaching students to expe…
2 million unique students are viewing our videos every month by choice (as opposed to being forced to attend class by the state). Read any of the thousands comments on our YouTube or Facebook page and the underlying feedback from students is that they are finally getting the "why" at the Khan Academy as opposed to the "memorization-paint-by-numbers-what" in their classrooms. Do we think we're ideal? No, we're constan…
And because something is popular doesn't mean it's good. Take modern music. A lot of popular singers attract crowds of people and make tons of money. But very often the music just sucks. And people forget these pop idols as fast as they make new ones.
Re: The Dangerous Mr. Khan
#158Hi Everyone, This is Sal here. I wanted to respond directly on the author's page, but they seem to be having a problem taking comments. The reason why I make history videos is that many people I know (many of whom are quite educated) don't even have a basic scaffold of world events in their minds (or the potential causality between events). Most American high school and college students would find it difficult to giv…
Thank you for all your hard work, we all appreciate it.
Adam
Re: The Dangerous Mr. Khan
#159Earlier quoted context omitted.
Even if history is presented as a perspective, why choose Khans perspective? Why not choose another perspective? You missed the bigger picture of the article, which is that a single entity never should control re-telling of events. There should not be one perspective. One person, one entity, can not provide different perspectives, due to echo chamber effects and such, it is almost impossible.
Isn't this kind of a straw man? Salman Khan is not a fascist dictator who prevents you from getting information anywhere else. He's just a teacher. I don't see how learning from him is more of a problem than learning from other teacher.
I agree with him; these look like "make me look not stupid in casual conversation" lessons, they don't seem to impart a real understanding of history, of these major events and what impact they have on the present world.
Re: The Dangerous Mr. Khan
#160Earlier quoted context omitted.
History is not comprised of a set of value-neutral facts. History is a narrative constructed out of fact and interpretations, and every history has a viewpoint. Without question, one changes history by deciding to view it differently. If it didn't work that way, we'd only need one history book and we'd be done.
Well actually, history does consist of value-neutral facts, but the sum total of all those facts is far too complicated for any one mind to comprehend. This atom moved there, that atom moved here, and so forth. Even if you scale up to the actions of individual people rather than atoms, we're still far beyond what we could comprehend... and in any case, most of it isn't recorded. Having acknowledged the limitations of…
I'd say this is also true in the broader sense of how a person chooses to live in an inherently muddled world. You can take obstacles and confusion as a call to action and vigilant reflection, or you can use them as an excuse for giving up and accepting mediocrity.