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Posted by the-mitr 6 hours ago

Why Sal Khan't: On Learning by Making but Teaching by Telling(punyamishra.com)
97 points | 60 commentspage 2
stephen_cagle 2 hours ago|
I'm curious if maybe the mistake was in assuming we needed AI for the teaching part of the process.

Maybe we should focus only on having AI for the correcting/internalizing part instead? A purely deterministic grader and problem creator creates an endless stream of problems and solutions. The LLM's job is just to help you get to the point that you can assign a random problem from this problem set and the student will be able to answer it without assistance. Hopefully the teachers lecture at the beginning of class helped with understanding as well (I suspect that it would), and also provides a more broad "theory of mind" about what we are doing than the myopic LLM's "Let's get you solving this problem" does. Also, humans are social creatures, and being taught by another human being (even if it were less efficient) is likely beneficial to most people.

tldr; Normal human teacher, deterministic grading to gauge progress, and LLM assistants to help the student get to the point that they can pass the deterministic grading.

endiansg4m3 2 hours ago||
Yeah? That's what the style of teaching is about.

Think less science and more a conversation; establishing syntactic and semantic ground rules for the speakers grasp of a behavior relative to problem.

It's not necessarily about teaching something concrete. It's about teaching a social style in an abstract way. It's discussing a painting or piece of music, in math the symbols used to represent possible number/geometry generators.

I never just watch the videos. I rewrite what is written out. To recreate the song and dance so to speak.

Pragmatically speaking life is just performance art. Only a few specific realms of science move the needle for humanity; biological health maintenance (across all contexts; housing, food, not just medical) and our research in energy infrastructure.

Everything else is just one's relative outcome. Result of their sensory experience. Feels like this should be obvious at this point.

The studies that show brain activity goes down as we use AI. Yeah. So? Is it great to stimulate ourselves so much with ultimately arbitrary content our biology immediately tries to forget due to entropy? Heart attacks are up in <60 crowd relative to last generation. Constant interaction with flame wars and tabs v spaces (functional languages and Nix or gtfo!) computer config wars level inanity is not good Bob.

dctoedt 2 hours ago||
Comment https://news.ycombinator.com/item?id=49411243 by @dabedee is dead from downvoting but shouldn't be.
sva_ 47 minutes ago|
You know you can vouch for a comment right?
dctoedt 27 minutes ago||
No, I didn't know that. Just did so — thanks for the tip.
croes 2 hours ago||
Isn’t education often a you-can-lead-a-horse-to-water-but-you-can't-make-it-drink problem?
sudo_cowsay 2 hours ago||
Why are there people in this comment section who are just downvoting opinions that they don't agree with?
pstuart 5 hours ago||
That article is spot on: we learn by doing and experience, not being told the high level outcomes (which is not without value as a guide).
gwerbin 3 hours ago|
I can't speak for anything that came later, but in the early videos the majority of the benefit was that the presentation was exceptionally clear, and focused on developing one little piece of a subject at a time, it gently paste format that you could easily pause and rewind over and over.

It was never about replacing exercises, it was there to help you do the exercises from your actual coursework, and to serve as a refresher reference for things you might have already studied but forgot some details about.

Also the videos usually consisted of a while of time spent physically writing out and talking through examples.

dabedee 3 hours ago||
Sal could not get to his cousin's house every afternoon to do math with her, so he recorded the sessions. She said she preferred the recordings, because she could rewind them and because he wasn't sitting there watching her not get it. He put them on the internet. Then he spent about fifteen years building an exercise engine, a "mastery" model, and a teacher dashboard around them, and told everyone who would listen that the point was to move the lecture out of the classroom so the classroom could be used for something better.

And the essay's premise is: this man wants your child to watch a video.

rzz3 3 hours ago|
It feels weird and unfair to focus solely on Kahn here when he’s competing with some random teacher or professor’s droning, confusing, non-interactive lecture that’s less engaging and just as lacking in interactivity or application.

I also don’t think he ever purports to be “all you need” to learn.

It reminds me of the people who criticize Duolingo because you can’t actually reach perfect fluency through their app--like wasn’t it always obvious that it was never meant to be the only education you need; wasn’t it always obvious that you need to actually _speak_ a language to learn it? And yet it’s still a great app that has helped millions of people learn languages.

runarberg 2 hours ago|
I agree that it is unfair and perhaps even unnecessary to focus solely on Khan here. But I think it must be acknowledged he has caused (intentionally or not) a ton of damage to the state of education. He sparked a movement of “innovation” and “disruption” that managed to push a lot of unproven teaching methods that ran against standard pedagogy which made a lot of entrepreneurs a lot of money.

I don‘t think Khan is solely to blame for this. These entrepreneurs would probably have done equal amount of damage without Khan, siphoning funds away from proven solutions like paying teachers and providing school lunches, and into ballooning administration costs and 3rd-party tech companies. However Khan is for better or for worse the face of this movement and will justly or unjustly get that blame.

Duolingo is however less ambiguous. There is very little language learning going on on their platform. You trick people into playing their stupid game and watching their stupid ads, thinking that they are learning, when in fact they are not.