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Joel Liu's Library tagged Learning   View Popular, Search in Google

Feb
4
2012

  • Ever had the experience of reading a book and not feeling like you’re learning anything useful? What about realizing a week later you don’t even remember what the book was about?

     

    What’s the use in reading if you don’t understand and don’t remember what you read?

     

    You’re not alone… many people have difficulties fully comprehending and remembering written material. Fortunately, it’s easy to improve your reading comprehension and retention. Here are three simple techniques to get you started…

      1. WHY am I reading this?
      2. WHAT might I need this information for?
      3.  
       

      These questions are immensely important for two reasons:

       

      First, asking why you’re choosing to read a particular piece of material helps determine your purpose: what you ultimately want to accomplish by spending your time reading. Setting your purpose is the best way to factor in the opportunity cost of your time and attention… if you don’t believe what you’re about to read will be useful, you can choose to do something different.

       

      Second, asking why you might need this information primes your brain to make connections between what you’re reading and what you want to achieve. Our minds work primarily via pattern recognition – by reminding yourself of your areas of responsibility before you read, you’ll make many more connections than you would otherwise. (Be sure to keep a notebook and pen close at hand to capture your thoughts and ideas without breaking the flow of your reading.)

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Jul
3
2009

  • The interesting thing, to me, is that this effect could serve as an explanation for the phenomenon described yesterday in http://news.ycombinator.com/item?id=580209 . Namely, the independent study technique might naturally encourage this mode of learning by sheer accident. In short, you are studying to prepare for a discussion, rather than memorizing for an exam. This naturally causes you to 'close the book', recall, and then speak it out loud. (This article reports that speaking out loud is better than just recalling.)

    In a conventional 'learn to test' scenario, one might feel naturally compelled to read and reread, or to take notes with the book open, simply out of desperation.

    What do you think? Could the success of 'Unschooling' be largely due to the very effect described in the current article?

  • The actual discussion will also improve recall, because you are recalling the information in many ways, and exercising your mental model of it. The process of discussion gives you practice in recalling and using the information.

    You may also learn something from the discussion itself, become aware of gaps, fill those gaps, get addition points of view and ways to think about it, reasons for holding opinions, which ones seem right but are wrong and why (and which ones seemed stupid at first but - dramatically - aren't). The social aspect, and the competitive aspect, will help you engage. Later, you might even recall some aspects episodically, e.g. "Jones said this, and Bloggs undercut him, and then I showed they were both wrong, and everyone laughed". Memorable.

    I agree that anticipation of a discussion will also make your preparation for it more effective

  • 1999 everyone was talking about how all training was going to be online by 2010. It hasn’t happened at all, and even worse, flagship companies such as Saba, with a market cap of $142M and SumTotal, which was taken private by Vista Equity Partners in 2009 for about $160M didn’t perform as expected.
  • On the other side, companies such as BlackBoard, with a market cap of $1.45B and SkillSoft, with a market cap of $1.05B did much better. There hasn’t been a lot of innovation after this first generation of e-learning startups. However e-learning as an industry seems to be making a comeback with companies such as 2Tor, founded by Princeton Review’s John Katzman, getting a lot of attention after raising a $10M series A in June 2009 and $20M series B recently led by Highland to go after elite programs at elite schools.
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Oct
22
2011

  • The Edtech revolution that is currently underway will have made available a myriad of choices for both content organization and interactivity. The real power of this will be in sharing of data about student misconceptions between teachers around the world. A discerning teacher will be able to organize standards-based content around vetted, ranked, interactive audio, video, and text resources that can be organized into curricular units that allow students to pursue mastery cooperatively and individually. With shared data about student responses, teacher will be able to choose the best course of action in the moment, given what they learn from their students from instant feedback.
Sep
26
2011

  • Here's one example of this kind of phenomenon. If you really want to understand a question, write a paper about it. It's easy enough to read five or ten research papers in an area, and if you do that thoroughly, and write extensive notes as you do so, you'll start to feel that you understand the area and the issues involved.

    However, if the way you learn is much like mine, when you try to start writing you will realise that you haven't grasped it with anything like the fullness that you had thought. Start writing anyway: you have a bibliography, and hopefully you have a rough idea of the thesis you want to defend. Write the literature review sections. Sketch outlines of arguments, and then try to take them apart. Find counterexamples. If your position has any merit, you will eventually figure out some convincing arguments. Flesh them out: write a first draft, as rough as you like. Improve it by smoothing out poor phrasing and removing extravagant, unsupported claims (it may only be obvious once you've written them that this is what they are).

    After some time you will have a reasonably presentable paper. More than that, though, you will actually understand the issues: how the various ideas in the field fit together, why you really disagree with some of the papers you've read, and perhaps even what your own take on it is. It's hard work! But writing is what makes the difference. If you just read a lot you can come away with the misapprehension that you understand the field, when in reality you just know a lot about what people have written.

  • Another way - if you really want to understand something, teach it. The preparation required to not embarrass yourself in front of students is huge.

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  • Trying to remember what you’ve just studied, then writing it down, may be a surprisingly good way to learn.

     

    In a study published January 21 in Science, researchers asked 200 college students to spend five minutes reading a short passage about a scientific subject. Afterwards, they were either told to re-read it several times, as if cramming for a test; make “concept maps” of the material; or spend 10 minutes writing a free-form essay about the passage.

     

    One week later, the students were given short-answer tests on what they remembered, and asked to draw logical conclusions from those facts. Students who originally wrote essays performed best. Next came the crammers, then the concept mappers.

  • Wouldn't that largely depend on what the topic is?

    If I want to learn a language, I'll find a basic book on it and then grab as much native audio as I possibly can.

    If I want to learn about something in math, I'll go to Khan Academy.

    If I want to learn about irrational decision-making in everyday life, I'll read a book.

    And that all starts with the assumption that learning follows the waterfall method: pick what you want to learn, learn it, move on to something else. I find learning much more iterative: be intrigued by something, follow it, see what it leads. I never really decided to learn about systems thinking, but I came across the personal MBA reading list one day, thought it was fascinating, came back, picked a book that looked interesting (Thinking in Systems), and read it.

    A couple of weeks ago, I learned a great deal about writing fiction with characters of a different gender or race than you. I never set out to, but I do NaNoWriMo each year, and one of the most active posts on their forum was about "writing the other." It fascinated me, so I followed it, and learned something for it. This, to me, is what lifelong learning looks like.

  • If you are interested in learning for retention (i.e. learning something and then being able to remember it the next week, next month, next year...) then you should look into Spaced Repetition software (search for "spaced repetition" on Wikipedia for a good overview). The software presents information in a question/answer format, like flashcards, but spaces out the repetition so that the material you need to review most you see more often, and the material that you remember well you see less often. There are several  programs available that support this form of learning including Mnemosyne, SuperMemo, and Anki.

    As for how I use the software, as I'm reading something I want to retain, I try to extract essential concepts as question/answers pairs and add them into a deck in the software. Then review the deck with the software on a regular basis (usually daily). The spacing effect provides maximum learning with a minimum time investment.

    As for choosing a topic, that's entirely up to your personal interests. There are no shortages of posts on Hacker News listing books the readers are interested in. Search Hacker News for "good books", go through one or more of the lists, and choose one (or more) of the books that sound interesting to you, and get started.

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