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I used Khan Academy over the years...and I have some questions. 1) Why do they keep redoing the exercise system? It seemed that they are changing for the sake

by kiba 10y ago

I used Khan Academy over the years...and I have some questions. 1) Why do they keep redoing the exercise system? It seemed that they are changing for the sake of changing. 2) How do I know if there are new math problems and exercises that show up? I am interested in advanced math and learning how to do math proofs, not simply compute an answer.

wodenokoto 10y ago
Khan Academy is focused on K-12 (I think it's called. First grade through high school) math, so I'm not sure it's the right place if you want to do advanced math. One year ago you could answer all exercises using only the keyboard and now you can't. That is a shame, but I think most young students (the main focus) weren't using this feature, so it was kept alive as more and more types of exercises were added. And these new ones are a great addition.
- gecko 10y ago
  Just to note, our eventual goal is to have toddlers through what I think we call C-2 internally (sophomore year of college in the American system). We do actually have content at all of those levels, and expanded really nicely to the younger crowd when we "bought" Duck Duck Moose, but we're definitely not covering all of those areas consistently across subjects. Some stuff (e.g. art history) is only at high school level, other stuff (e.g. English) covers the gamut but amazingly randomly in terms of actual content, etc. So, I don't think we'll have "advanced" math (for some values of "advanced") any time soon, but we're definitely aiming to get solidly into general college-level stuff, so things like stats/linear algebra/etc. should all be covered nicely eventually.
  - rwmurrayVT 10y ago
    I hope you achieve your goal. Not long ago I saw a posting for a mechanical engineer content creator. By the time I had a moment to prepare an application, it was (presumably) filled. I hope Khan Academy continues to create content in areas for young adults and up.
gecko 10y ago
> Why do they keep redoing the exercise system? It seemed that they are changing for the sake of changing. Most of the recent changes have been focused on two axes, very tightly related: 1. The old exercise system did not work sanely on mobile. Supporting mobile required both front- and backend changes. 2. As part of that, we wanted to extend the kinds of things we could do in exercises so that they'd be usable for more than just the simple math problems they've been focused on until now. We all know there were some minor regressions in the process of getting there, but we're basically done with the tear-it-down-and-rebuild-it part of the process, so the churn should be a lot saner now.

by kiba 10y ago

wodenokoto 10y ago

Khan Academy is focused on K-12 (I think it's called. First grade through high school) math, so I'm not sure it's the right place if you want to do advanced math. One year ago you could answer all exercises using only the keyboard and now you can't. That is a shame, but I think most young students (the main focus) weren't using this feature, so it was kept alive as more and more types of exercises were added. And these new ones are a great addition.

gecko 10y ago
Just to note, our eventual goal is to have toddlers through what I think we call C-2 internally (sophomore year of college in the American system). We do actually have content at all of those levels, and expanded really nicely to the younger crowd when we "bought" Duck Duck Moose, but we're definitely not covering all of those areas consistently across subjects. Some stuff (e.g. art history) is only at high school level, other stuff (e.g. English) covers the gamut but amazingly randomly in terms of actual content, etc. So, I don't think we'll have "advanced" math (for some values of "advanced") any time soon, but we're definitely aiming to get solidly into general college-level stuff, so things like stats/linear algebra/etc. should all be covered nicely eventually.
- rwmurrayVT 10y ago
  I hope you achieve your goal. Not long ago I saw a posting for a mechanical engineer content creator. By the time I had a moment to prepare an application, it was (presumably) filled. I hope Khan Academy continues to create content in areas for young adults and up.

gecko 10y ago

> Why do they keep redoing the exercise system? It seemed that they are changing for the sake of changing. Most of the recent changes have been focused on two axes, very tightly related: 1. The old exercise system did not work sanely on mobile. Supporting mobile required both front- and backend changes. 2. As part of that, we wanted to extend the kinds of things we could do in exercises so that they'd be usable for more than just the simple math problems they've been focused on until now. We all know there were some minor regressions in the process of getting there, but we're basically done with the tear-it-down-and-rebuild-it part of the process, so the churn should be a lot saner now.