Khan Academy and the Effectiveness of Science Videos

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james-revisoai · 2023-02 · Strong recommendation

Founder of StudyWand.com here, who received a 15k grant to develop an AI generating flashcard app in 2020 after an earlier prototype. We've found students more consistently study ready-made cards that are at desirable difficulty (they get about 80% correct) and which are segmented by topic (e.g. semantic grouping of flashcards to tackle "one lesson at a time" like Duolingo). Students would prefer to use pre-made flashcards by other students in their class, then AI flashcards, then create and use their own. There is limited evidence by Roediger and Karpicke who are the forefathers of retrieval practise that creating cards is also important. Frank Leeming (2002 study Exam-a-day) also showed that motivation when studying is peaked when you ask just a few questions a day, but every working day. Now one of the vital benefits of retrieval practise with AI over creating your own cards is foresight bias - not mentioned yet in this thread - the fact that particularly in some subjects like Physics, students don't know what they don't know (watch this amazing Veritasium video, it also explains why misconceptions are so handy for learning physics): [VIDEO] - basically, if you use AI quizzes (or any prepared subject-specific right/wrong system), you learn quickly where your knowledge sits and what to focus on, and reduce your exam stress. If you just sit their making quizzes, firstly you make questions on things you already know, you overestimate how much you can learn, and you consolidat

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joshg · 2011-06 · Strong recommendation

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. [VIDEO]

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james-revisoai · 2024-08 · Reference

Some of the teachers I have worked with do this; and there are some great teachers(lecturers) like Martin who teach effective studying techniques: [LINK] Flashcards and Anki were incredibly effective for me. I am building a study tool which automatically generates them from lecture slides. Beyond that, it applies other psychology of learning techniques - It breaks up content into manageable chunks you can see your progress on (to boost your confidence of exam coverage) and has an exam-conditions like mode where it shows you relevant slides, then asks you questions and to freely recall by blurting onto a blank page everything you remember. It's then able to give you a realistic judgement of your learning and this way of learning by actively recalling freely is, though more intense, ultimately more effective than either reading, watching or quizzing in the long term. The part of learning that other flashcard apps miss, even Anki, is that students must be motivated. They must enjoy, visually engage, and be confident as they study. They must feel they are on a sustainable realistic path as they gather knowledge when on the way to their goals. And they don't have to study every day to do that - they just need to genuinely learn and be able to see the state of their progress... I am excited to be working on EdTech now[Revision.ai] which unveils and detects misconceptions to aid the student in eliminating them. Misconceptions are a massive opportunity - as much as spaced repetition

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