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/sci/ - Science & Math

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9372832 No.9372832 [Reply] [Original]

is khan academy good?

>> No.9372840

define "good"

>> No.9372847

>>9372832
If you are a tard it's good. If you know the stuff and want a refresher it's good. If you want to learn a topic more in depth, then its mediocre.

>> No.9372848

>>9372840
not shit.

>> No.9372854

>>9372848
define "shit"

>> No.9372861

for math it is, at least up to the first year of college.

>> No.9372904

>>9372832
I can't stand Khan academy because the lecturers take what seems like hours to explain concepts that should take like 5 minutes at most.

>> No.9372939

>>9372854
the surface of streets in India

>> No.9372943

>>9372904
exactly

>> No.9372950

>>9372904
Do you know anything better?

>> No.9372958

>>9372832
if you really want learn try edX and MIT OCW

>> No.9372959

>>9372950
Reading a book

>> No.9372982

>>9372950
It depends on what you're trying to learn.

I think most online lecturers talk at an infuriatingly slow pace. It makes me want to pull my hair out.

If I want to understand a physics or calculus concept, I work example problems and study the relevant equations until it makes sense.

>> No.9372992

>>9372904
yup, exactly this
the material contained in their 20 minute videos could easily be contained and presented intuitively in videos 1/4th the length
I was getting frustrated really fast because I instantly knew exactly what that sandnigger khan was trying to spew out for a few minutes

tldr; If you're mentally handicapped, go for it

>> No.9372995

>>9372959
reading a book is as time inefficient as khan academy

>> No.9373005

>>9372995
>>9372959
The problem with reading books is almost all books are written in the same stupidly long and drawn out manner.

Working example problems that are already solved step by step which you can check is the best way I've discovered for learning most calculus and physics concepts.

>> No.9373071

For calculus 1 and 2 this book http://www.springer.com/us/book/9780387953274 (libgen that shit)
has more than you need to know. (but study all of it to supplement shitty omnibus calculus course)
250 pages in 1 year easy.
rigorous calculus without epsilon delta shit wasting time (you're taking analysis you will learn that anyways)
sets you up for http://www.springer.com/us/book/9780387964058 to actually start learning real math

>> No.9373078

>>9372832
It's okay but I think you can just use a textbook and get more

>> No.9373091

>>9372847
this

>> No.9373111

>>9372904
I used to not mind this, but now I have to watch his videos at 2x speed because I get so irritated with how slow he can be. It actually is a painful experience recalling in my mind his raspy voice writing something down and repeating it 3 times slowly. He can sound very tired and kind of bored or stressed in some videos, and when you're tired and stressed as well it just makes watching the videos miserable. Can't hate though, there's some times where his videos were really helpful, specifically physics one. Linear algebra really needs to be redone though.

>> No.9374280

>>9372832
It helped me a fair amount in calc, but I found it unbearable for physics. The videos were just so goddamn fucking slooow. This is a problem I have with video tutorials of any sort, but Khan Academy simply takes it to another level sometimes.

>> No.9374375

>>9372832
Eh it's ok.
Personally, the guy's voice really annoys me; can't watch it.
And he focuses too much on concrete stuff rather than abstract stuff, which is fine I guess depending on what you want to learn.

>> No.9375221

>>9372950
coursera

>> No.9375278
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9375278

I got banned from khan academy for making a population growth model on their student java programming compiler that said the holocaust never happened.

>> No.9375286

>>9375278
HAHAHHAHAHA

>> No.9375291

>>9374375
>>9373111

lol this is why i like it, his voice is so nice and he makes sure no holes are unexplained. its perfect if you are learning it for the first time and might have some previous holes.

and yes they are basic, maybe touches some freshmen uni topics. but thats it

>> No.9375352

>>9375278
Can you teach me java? plz hlp