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jrd79 · 4 years ago
My main technique from my engineering undergrad days was extremely effective and yet very simple and easy to describe and/or implement. It is:

1. Attend the lectures and take good notes. Don't write things down that are obvious or that you already know.

2. Before any exam, go back over the dozens of pages of notes and condense them down to 3 or 4 pages, omitting details that will be brought to mind by the things you are writing down.

3. Go back over the 3 to 4 pages, condensing them down to a single page, compactly written.

4. Go back over the single page, condensing it down to a single notecard.

The act of condensing requires you to internalize the knowledge enough to know what you have memorized and what you must still note down. And the act of repeatedly writing down the hard parts commits those to memory too.

By the end, the notecard has a handful of difficult to remember formulas and a bunch of keywords that prompt your memory to recall the salient details. In the US at that time, a single notecard was often allowed during exams, so the final work product was also that card.

(My recall 20 years later is excellent, so this is not cramming.)

eointierney · 4 years ago
This is very much what I did, but I would add two other things: study above your level, and read the history of the subject.

If an undergraduate read graduate level textbooks, especially overviews.

This gives one a sense of the context of the subject, an appreciation of "where it's going", a hint of why the subject is still interesting and under active development, and makes the undergraduate material seem almost innocent by comparison. It's much harder, of course, and you'll often find that the entire semester's material is covered in a couple of chapters at the beginning, but the feeling of "how the professionals really talk/think about the subject" is hugely important for getting a feel of the thing.

The history of a subject is great for giving the human context, which is hugely useful for grokking how things developed organically, as well as the personalities involved. It can really help remembering stuff.

Before going back to college to do Maths and Physics I went out to the local university to get advice as to how to study the subjects. I was told to get Feynman's Lectures ((in)famous) and Boas' Mathematical Methods in the Physical Sciences (extremely terse but excellent). I did, tried my best, and in retrospect still think they were taking the piss. And yet, when I went back to university a year later, there were so many ideas and intuitions already in place that although the Maths was still computationally difficult the concepts were not as strange as they might have otherwise been.

In college itself it was the library that was the real draw, so many amazing texts just there for the reading. To be fair, the professors were wonderfully patient and encouraging.

But mainly, just keep at it, hour after hour, without comparing yourself or your efforts to anyone else. It's hard enough without imagining other people looking over your shoulder. I remember a number of young ones who, though brilliant in school, found university just that bit beyond them. Take frequent breaks, even holidays, and remember, above all, that exams are perhaps the worst test of learning we have yet devised apart from all the others.

foolinaround · 4 years ago
thank you for this; the very first time i am hearing this (reading the overviews of high level books), and now it makes sense, but I did not do this as I was studying, nor was I told to, by my profs!

Maybe this needs a seperate set of resources to be maintained, say we read a book, it should have resources to suggest higher level texts that would be helpful for this review.

rebelos · 4 years ago
> My recall 20 years later is excellent, so this is not cramming.

Then one of the following is true: you have an exceptional memory, have been reviewing the content since then, or are dramatically overestimating your recall. It has little to do with your technique.

1123581321 · 4 years ago
What’s your strong comment based on? Rewriting notes is effective because the student can’t proceed without proving understanding by writing new material based on the subject. In the process, the formulas and concepts are repeatedly recalled and tested. Once understood, these concepts provide context for new concepts and information which allows broader and deeper understanding to accumulate. If you are thinking of the Forgetting Curve, keep in mind that years can go by between reviews, and that’s for arbitrary information, not concepts and methods that reinforce other concepts and methods.

Deleted Comment

akomtu · 4 years ago
That's how authors of the past compressed and encrypted important knowledge. This is why we've ended up with pearls like "everything is water" and unless you know what "everything" and "water" mean at this level of compression, this is just a funny allegory.

Another trick is inventing symbols to compress common concepts, much like the gzip algorithm. Your notes become an Egyptian papyrus to an outsider, but to you they contain all the info without omissions.

rramadass · 4 years ago
Well said and quite right!

Anybody who has studied Indian/Hindu philosophy will be well aware of this problem.

yodsanklai · 4 years ago
My maths/physics undergrad was mostly spent trying to solve a lot of problems and exercices. I don't think I've had to actively memorize things. I still remember a lot of things.

On the other hands, there are subjects that I've been trying to learn just by reading or watching youtube videos and my knowledge stays very superficial.

Dwelve · 4 years ago
I did the same but in addition I read things out quietly and asked myself questions about what I just wrote down and read. Not simply reciting the core points but trying to understand why they were put in that place, what makes it necessary for them to be that way and how they fit into the broader context. Additionally I'd "circle back" every now and then, i.e. question what happened in the previous page, then in the previous chapter. It got extremely addicting to learn once I got the hang of it. It is remarkable (and quite frankly insane) how much knowledge you can absorb and internalize in a coherent way if you just blast every sense with that input and force your mind to "live and breathe" a certain topic. (I still became an unemployed loser but at least I can learn fast!)
rramadass · 4 years ago
I strongly disagree with trying to condense to a very compact form. You almost always will lose information and understanding that way. Remember; the devil is always in the details. However engaging in the act of condensing called "Precis Writing" is very vital and a must. Just make sure to do it in conjunction with a Textbook and logically to whatever level feels comfortable to you (a page or two is fine).
nine_k · 4 years ago
The point is different.

The act of "compression" puts less obvious key points to the paper, allowing you to more easily memorize the more obvious parts.

The whole exercise is about committing to your memory more and more of the "easier" stuff, while extracting the few "root" ideas and a few least obvious points / formulas to write down.

twelvechairs · 4 years ago
I agree and had a very similar technique. Only change perhaps was all my notes were written as question on the left, answer on the right. Id just run through the page(s) top to bottom with hand over the answer repeatedly. If it was long after a while id just write down a new page omitting the ones i was confident in by that stage.

I would say that this is great for school but not a technique that really prepares you for 'life'.

KingFelix · 4 years ago
great, pretty much used the same technique. I would re-write lecture notes right after class into 3 or 4 pages, helped solidify the material right away.
rramadass · 4 years ago
Exactly Right!.
naveen99 · 4 years ago
This worked for medical school also for me. Except we had a note taking service so I didn’t have to take any notes myself. And I don’t like take notes on notes. So I just highlighted 5-10% of the notes that weren’t obvious the first time around in yellow, then about a page or two I didn’t remember from them in red the second time around. but this technique would not work for 95% of the population.
gnubet · 4 years ago
How well did the note taking service retain the material?
omegalulw · 4 years ago
I would say that 2 is the most important. You have to spend time writing things and 3 and 4 are seem overkill and wasteful - rather just use the time go over 2 again.

1 depends on how diligent your are at attending class and how interesting the class is. I usually tried to find other student(s) who took notes.

witchuer · 4 years ago
That's interesting, in a similar vein I always thought the measure of intelligence was the ability to compress information. If you cannot summarize, then you do not understand the subject.
GuB-42 · 4 years ago
Interestingly, that's exactly the process for making cheat sheets.

It is well known that some students make these with the intention to cheat at the exam, only to realize that they don't need them.

Cyril_HN · 4 years ago
This is the same way I studied philosophy and law. That + immersion (go to bonus lectures if interest, join the academic community if you can) is superior.
technological · 4 years ago
How do you apply this to something beyond undergrad ? I mean like learning new concepts (like DNSSEC, NAMESPACES)
rramadass · 4 years ago
Not quite sure about your question but the same techniques apply, there is nothing new (you may find my posts in this thread useful for self-study).
garbagetime · 4 years ago
That's less like a technique and more like saying "just learn the material".
ultramegachurch · 4 years ago
I disagree. I'm intrigued by this technique as it forces you to engage with the material while also prioritizing information, something I've always struggled with. I'm excited to give it a spin.
rramadass · 4 years ago
You are being uncharitable here. This is what is meant by "learning to learn" reduced to its essentials.
WalterBright · 4 years ago
1. attend every lecture without fail

2. take legible notes by hand on everything that goes on the chalkboard

3. do all the homework, and do it on time

4. make sure you understand how to get the solution to every homework problem

5. review notes and all homework problems as prep for the exam

I found this meant reliably getting at least a B in the courses at Caltech. Getting an A required considerably more work.

My high school technique of not bothering to do much of anything and still getting an A took a year and a half of abject failure at Caltech before I wised up. Fortunately, Caltech's freshman year was pass/fail, evidently they were familiar with people like me :-)

maxwells-daemon · 4 years ago
Also went to Caltech, and my progression was the complete opposite. Started out going to every lecture and trying to write everything down, but things just moved way too fast -- I'd write down every word and figure without ever internalizing it, and at the end of each lecture I'd have a crappy copy of the lecture notes and no memory of the last hour.

By senior year, my strategy was: don't write anything down, just try to follow the main thread of the lecture. Then afterwards, go back and read the textbook and take exhaustive notes then. Empirically I learned way more that way.

temp8964 · 4 years ago
If you find the lecture goes very fast, this means you should read the textbook before the class.
WalterBright · 4 years ago
I'm glad you found what worked for you! Everybody's different.

I've counselled students headed off to college, and I'd give them my recommendations (these days, I included taking notes by hand as that seems to be far more effective, and leave the laptop at the dorm). None followed it at first, and got poor results, then did, and things improved dramatically.

One thing I wish I had done was get a cheap cassette recorder and record the lectures. My notes were effective at exam time because they'd evoke the lecture memories, but are gibberish today because they completely lack context. I'd also have something special today to donate to the Caltech archives. All those lectures are lost to time.

P.S. with your username, you had to be a techer!

peter303 · 4 years ago
More courses are "flipped" these days with viewing the lectures out of class and solving exercises in class.
lugged · 4 years ago
Doesn't the lecturer give out notes ahead of time?

I used to just print them out and then highlight or make my own notes over top of the printed slides to make sure I was internalizing it.

mabbo · 4 years ago
> take legible notes by hand on everything that goes on the chalkboard

This is very person-specific.

For me, if I'm writing then I'm not actively listening. My brain can only do one or the other well. When I take notes, I'm not processing anything very well and I learn very little.

Instead, I generally only ever took notes on high level things, or on very specific details that mattered.

I also discovered that a surprising number of my professors were literally writing on the whiteboard the exact, word-for-word text that was in the textbook.

WalterBright · 4 years ago
Caltech courses often didn't have a textbook at all, or the "textbook" was merely ancillary. The profs would go their own way.
WalterBright · 4 years ago
P.S. Hal Finney was in the dorm room next to mine. His technique for getting As at Caltech was to do nothing, skip the lectures, and flip through the text book a couple hours before the exam. On the other hand, there was a sad group who would work their tails off and still barely scrape by. Sort of like me at basketball camp. They'd usually transfer out after a year or two.
xwdv · 4 years ago
6. Teach others and fill the gaps in their knowledge.
WalterBright · 4 years ago
You're right - attempting to teach others is an excellent way to learn it yourself. You'll find out very fast if you know the material or not :-/
twelvechairs · 4 years ago
> take legible notes by hand on everything that goes on the chalkboard

Disagree. Only take notes on what you don't understand.

WalterBright · 4 years ago
I almost never understood the lectures the first go-round. The only workable option was take it all down.
rramadass · 4 years ago
Simple and Direct process which works. This has been my experience too except i didn't do (3) & (4) diligently which directly affected my grades. I am not sure why people come up with elaborate frameworks (most of which are unworkable due to time, complexity and reqd. effort) for such a simple and fundamental process.

But one crucial step needs to be inserted into the above process to make it really work;

2.5. After the lecture whenever you have time, within 24/48 hrs sit down with the Notes and Textbook and go over the Notes in the context of the Textbook i.e. filling in the details and gaps in understanding. Try and engage in "Precis Writing" with Pen and Paper to get to the heart of the matter.

WalterBright · 4 years ago
Doing all the homework on time mostly eliminated the bubbling panic that threatened to overwhelm me when compressing for exams. I still have unpleasant dreams themed with endless variations on that. I told my dad about this, and he laughed and said they were common, and were dubbed the "examination dream".

I've never needed anyone to analyze my dreams :-)

But this persistent dream makes me feel empathy for combat vets with PTSD dreams. It must be infinitely worse for them.

kazinator · 4 years ago
> My high school technique of not bothering to do much of anything and still getting an A took a year and a half of abject failure.

This is a common experience. University can be particularly hard on kids which have a self image of "I'm a good kid because I get straight A's".

Once you're selected to that level, you're in a narrower cohort with other nerds; you're not just going to stand above the crowd with next to no effort.

jcelerier · 4 years ago
hm, I did almost none of that, missed 70% of the lectures, my (computer-taken) notes were a mess and I barely if ever reread them. Didn't miss homework tho. (french engineering school, my grades were hovering between 15-17/20, don't know how that translates to the US system).

Before that for the two "prépa" years I was definitely not the most studious given how many evenings were spent playing counter-strike, D&D and warcraft III at the dorm (miss you people), what really helped for the competitive exams allowing to get into the engineering school was doing additional exercises for 2/3 weeks beforehand ; this way I got much better grades than I had gotten for the previous two years.

So I'd err on the side of "it's mostly the exercises / homework which are useful"

cozos · 4 years ago
(1) and (2) are solved by recorded video lectures. I think I would have learned a lot more in school if they had that back in the day.
joshlingaround · 4 years ago
As a former middle school teacher, I found that the evidence-based techniques that the author mentioned, such as "spacing" and "retrieval", were underutilized in classrooms due to teachers not knowing about them, as well as how tedious it can be to implement them. I founded a nonprofit called Podsie (https://www.podsie.org) to help with this problem, and we created a free tool that's essentially like "Anki for classrooms" so that teachers can help their students study more effectively in their classes.
lintaho · 4 years ago
this is really cool, especially as a nonprofit - makes it feel much more mission-oriented and teacher-first.

are there any ideological/learning methodology differences between podsie and anki?

joshlingaround · 4 years ago
Thanks, and good question!

Ideologically, I think Anki and Podsie are pretty aligned in our beliefs that personalized spaced retrieval (often referred to as spaced repetition) is a much more efficient and effective way to learn and retain information compared to other traditional review practices (eg. reading textbooks or going over notes).

Learning-wise, perhaps the key difference is that while Anki is very focused on the individual-learner, we're much more focused on empowering each teacher. This means that we've needed to build features like having different autogradable question types (eg. short answer and multiple choice), ensuring that teachers have easy-to-follow data reports on how students and classes are doing, and also providing teachers with tools to incentivize their students to regularly review on Podsie.

robg · 4 years ago
1. Get good sleep. Your brain power is most affected by a lack of sleep. Poor and insufficient sleep impairs learning, memory, and attention.

https://healthysleep.med.harvard.edu/healthy/matters/benefit...

Quikinterp · 4 years ago
I've anecedotedly studied how much sleep is the most efficient before writing an exam, throughout the many I've taken at university. This is a bit different than long term rentention though, as my hypothesis was basically "if you think you're screwed for an exam, what's the optimal crammed studying/sleep ratio the night before?"

1. All nighter is never worth it no matter how little material you think you know.

2. If you're semi confident in the exam, prioritize getting a full sleep over a little sleep.

3. If you're not confident in the exam, definitely still aim for at least 5-6 hours of sleep.

That's what I've noticed when it comes down to cram studying, otherwise my performance goes out the window.

jonshariat · 4 years ago
One thing I did in school was sleep early and wake up early to study before the exam. I wonder if that was actually effective or not.
foobarian · 4 years ago
In my experience it gets more complicated depending on the days leading up to the event. Given good sleep for a good stretch of days up to the day before the exam, all-nighter can work out fine. But I guess there is a correlation between lack of discipline to get good sleep and not studying regularly so I can see that being a rare situation :-)
cardosof · 4 years ago
I have this same experience as well. During college, with exams in the mornings, I've also tried shifting periods: going to sleep really early just to wake up early and study for some hours until the exam. That did not work well - a consistent sleep routine is very important!
mabbo · 4 years ago
Before any exam, I had a simple rule: I don't study after 6pm the night before.

Instead, I get a good book, or a movie I've been looking forward to, and I veg out and relax.

This always lead to a good night's sleep and a better exam result than if I'd stayed up late studying instead, hoping to learn just one more thing- that I would never remember due to lack of good sleep anyway.

mettamage · 4 years ago
This.

I can't sleep well, trying to do everything in my power to make sure I get enough.

Whenever I'm well-rested for a week or so, I'm smart.

Whenever I'm ill-rested for a week or so, I'm only capable of basic functioning.

playpause · 4 years ago
> I can't sleep well, trying to do everything in my power to make sure I get enough.

Just a word of warning, I've experienced this becoming a bit of an obsession. I was losing sleep over not getting enough sleep. I'd bring the subject of sleep up in conversation a few times a week, making it almost part of my 'identity' that I was a bad sleeper, and I'm convinced this made it worse.

For anyone who thinks they might have the same problem, my unqualified anecdotal advice would be: Don't tell people you're a bad sleeper, even if you are. Generally don't talk about it too much. Do define some sensible rules (e.g. consistent wake-up time, no snooze, etc) and follow them blindly for a month - don't allow yourself to review or change these rules for at least a month, or you'll be thinking about sleep too often. If you have a sleep monitoring device, definitely don't look at the data more than once a month.

larrywright · 4 years ago
The thing that has made the biggest difference in terms of sleep quality was adding a magnesium supplement to my nutrition routine. It was an immediate change for the better and it’s held for years now.
DiffEq · 4 years ago
BioTest Z-12, except I take one, not the 2 or 3 they recommend. It it worth 10x its weight in gold.
cdiamand · 4 years ago
If you live in a bright-at-night, or noisy environment, you may wish to consider blackout curtains.

We recently bought a set and it has been a revelation. Darker, quieter room. Better sleep.

nsomaru · 4 years ago
I've found shifting my day works really well.

Instead of sleeping at 11/12pm and waking up at 6/7am, sleep at 9pm-ish and be up by 4:30am. It's usually still dark, it's extremely quiet and perfect for study!

Pro tip: a nap in the afternoon really recharges the batteries for another work session.

markus_zhang · 4 years ago
Most people don't have this luxury. Sad.
silicon2401 · 4 years ago
A lot of people have the luxury, they just lack the willpower. I used to stay up until 2am and wake up at 7am thinking I had more time for stuff. Now I try to get 7h minimum every single day and every day feels twice as productive as when I'm low on sleep, despite having fewer hours in the day.
eloisius · 4 years ago
Something I've come to appreciate over the last year of studying Mandarin is how well paper works for studying as compared to anything digital. In the past I've often been frustrated by absorbing difficult materials like CS papers. I never gave much thought to the medium because PDFs are pretty convenient, you _can_ annotate them, it's easy to copy paste and search for you things don't understand, etc. However, I still struggled to finish reading and understand a paper. I'm realizing now that I'm much more capable to form understanding than I used to think, and the trick is going to 7-Eleven and printing out a paper instead of reading the PDF. There's something about being able to quickly skim, mark up parts of it, etc. that no digital format has matched for me.

If I was going university today, I'd never bring my laptop to class again.

rramadass · 4 years ago
A thousand times this!

There is evidence for this emerging from Neuroscience. Something about using Pen and Paper engages our whole body and brain and seems to aid and cement the learning process. This does not happen with a keyboard and mouse. I have now become a strong advocate of limiting technology usage in the classroom and learning to use it appropriately.

tdeck · 4 years ago
Wait, do people cram because they think it's a particularly effective study technique? I always thought it was just a byproduct of procrastination and putting off studying until the absolute last minute.
marksbrown · 4 years ago
Think? Know! Cramming works in the short term due to the nature of mass testing.

Any sensible person identifies what they will be judged upon and maximises their effort towards that. Especially if we're in a world of credentialism. Which we are.

chenmike · 4 years ago
Agreed, I now greatly regret it knowing what I know about the theory of learning, but I crammed my entire way through college and graduated with honors. It's embarrassing to say but I can recall close to 0 of the facts or formulas that I regurgitated onto any of my exams.
tdeck · 4 years ago
I always understood "cramming" to mean studying everything in a condensed block of time in just the few days before an exam. That's orthogonal to prioritizing what to study, which I think most people would agree is a smart strategy. But perhaps the word has different meanings to different people.
Jtsummers · 4 years ago
And people continue with what succeeds. If it worked once, and it worked the next hundred times, why would you change? That it's not efficient or effective in the long-term is irrelevant unless they step back and consider their objectives. Which most people don't seem to do on a regular basis.
ipnon · 4 years ago
It is the most effective studying technique when you have spent the entire semester doing bong rips.
leetcrew · 4 years ago
it really depends on the situation. the gold standard for retaining knowledge is short, active (ie, not just re-reading notes/books) study sessions spread out over many days.

but this takes a lot of time discipline. if you don't care about the material and just want to pass the test, I find dumb cramming methods like retyping all the professor's powerpoints the night before work pretty well. I got lots of As in classes I didn't care about that way. I forgot almost all the material later, but it left me with more time to study properly for stuff I was actually interested in.

agumonkey · 4 years ago
who else here, after studying long hard (according to their level) topics, realized that there's also a notion of smoothness/patience ? rushing is rarely required to reach eurekas. A little bit of playful intellectual contemplation is often enough.
Jtsummers · 4 years ago
That clicked for me at some point in college. When I had my epiphany moments on calculus one or two years after taking it, but with the extra time applying it I just "got it" one day. It switched from mechanical application to actual understanding. Same thing happened with a number of other subjects. Classes where I had little time (I took a couple summer courses that had 5-10 weeks to cover a semester's worth of material) did not stick with me in the same way unless I had an opportunity to reuse it later. Classes that I never reused (Latin) stuck with me better, though, given their duration (a full academic year) versus an Old English course that was crammed into 5 or so weeks.
agumonkey · 4 years ago
interesting, especially the 'actual understanding' ..

- when young, you coat stuff with more emotions than the topic itself, it feels hard, or advanced, or hard, later on you simply look at it naked

- the patient eureka is clearer and larger, it really feels as if suddenly you're simply sitting on top of a nicer viewpoint and effortlessly you can connect more pieces in more ways

galaxyLogic · 4 years ago
I think that is what Feynman technique is much about. You spend time writing questions of what you still don't understand recursively until you have understood it all.

It begins by understanding what you don't understand.

Once you understand something after spending time trying to understand it and writing down your understandings and non-understandings, you typically have little problem memorizing it.

agumonkey · 4 years ago
Even before 'things you don't understand' I was thinking about things you don't even see or overlook.

Most ahhh moment are realizing you had everything before your eyes.

albertop · 4 years ago
Learning How to Learn by Barbara Oakley has been my go to approach. Best advice I was able to find so far.
animesh · 4 years ago
This is the way. A well structured course that will leave you with effective tools to maximize your learning potential.