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andy_matuschak's profile
Andy Matuschak
Andy Matuschak
Andy Matuschak
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@andy_matuschak

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Andy MatuschakVerified account

@andy_matuschak

Wonder, blunder, salve, solve! Working on tools that expand what people can think and do. Past: led R&D @KhanAcademy; helped build iOS @Apple.

San Francisco, CA
andymatuschak.org
Joined November 2007

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    1. Andy Matuschak‏Verified account @andy_matuschak Mar 26
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      In "Quantum mechanics distilled," @michael_nielsen and I introduce application prompts, which have you use what you've learned to solve a problem. You won't be able to answer from memory but they're light enough to solve in your head. https://quantum.country/qm  A fun data point:

      1 reply 11 retweets 76 likes
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    2. Andy Matuschak‏Verified account @andy_matuschak Mar 26
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      Normally 85+% of readers answer our prompts correctly. But I noticed: one question in our new essay has a 60% success rate. Maybe it's the 1st application prompt? No, there'd been two already—but you could solve them through symbol shuffling. This was the 1st to require thought.pic.twitter.com/p2VcS9JEae

      2 replies 2 retweets 11 likes
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      Andy Matuschak‏Verified account @andy_matuschak Mar 26
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      Talking to readers about it, it's clear that this prompt was a bit jarring. Instead of drawing on automaticity, trying to remember an answer, this one asks for an answer you must produce anew. Definitely a heavier lift, but it sounds like "a good kind of hard" so far.

      9:13 PM - 26 Mar 2020
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      • 11 Likes
      • Vermillion002 Qusea Saif Greg Stanton Szymon Majewski Girish Gupta Radoslaw Jurga Rob Alexander Giacomo Randazzo michael_nielsen
      2 replies 1 retweet 11 likes
        1. New conversation
        2. Andy Matuschak‏Verified account @andy_matuschak Mar 26
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          The mnemonic medium relies heavily on the "lightness" of it and relative fungibility of its prompts, so we'll need to walk a careful line as we push on these more elaborate types of questions. If you've read the new essay, let us know about your experience with the prompts!

          2 replies 2 retweets 8 likes
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        3. Andy Matuschak‏Verified account @andy_matuschak Apr 6
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          Andy Matuschak Retweeted Greg Stanton

          Wrote some notes on this topic this morning: https://notes.andymatuschak.org/z7U6zXNGgTz1aEpRDUe6eMxotrhK4tmgprcxh …https://twitter.com/HigherMathNotes/status/1243676191988436993?s=20 …

          Andy Matuschak added,

          Greg Stanton @HigherMathNotes
          Replying to @andy_matuschak
          Thank you so much for this work. In this context, I suppose fungible prompts would be ones that can be shuffled or replaced with variations? Can you elaborate on the ways in which the medium depends on the lightness and fungibility of the prompts?
          0 replies 1 retweet 9 likes
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        4. End of conversation
        1. New conversation
        2. João Eira‏ @joaoeira Apr 6
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          Replying to @andy_matuschak

          Doesn’t the lower success rate of a question that requires more thought, less automaticity, imply trouble regarding the robustness of their learning?

          1 reply 0 retweets 0 likes
        3. João Eira‏ @joaoeira Apr 6
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          Replying to @joaoeira @andy_matuschak

          Namely, if the readers, having gone through the essay and using the mnemonic medium, aren’t able to answer that aplication prompt, then can they be considered has having attained a robust level of understanding of the material (what I have called semantic learning in my notes)?

          0 replies 0 retweets 0 likes
        4. End of conversation

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