Khan Academy: A global teacher of 1,516 lessons and counting

#1

Post by Mgreen » Mon, Jun 28, 2010, 11:55 AM UTC

Khan Academy: A global teacher of 1,516 lessons and counting
physorg.com

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#2

Post by chime » Mon, Jun 28, 2010, 12:54 PM UTC

I finished my undergrad 6 years ago and want to get into a PhD program in a year or two. I expect my research will pertain to DSP and involve FFT/DFT on a regular basis. To brush up on my math (PreCalc, Calculus, Linear Algebra etc), I've been watching Khan's videos nightly. I must say his videos are a great way to recollect what you've already understood once but forgotten now.

I wish there was a way to speed them up though. I've thought about downloading the mp4s from YouTube and playing them locally at high-speed with VLC.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#3

Post by RiderOfGiraffes » Mon, Jun 28, 2010, 12:56 PM UTC

These are a fantastic resource (I've actually up-voted the submission), and everyone should know about them, but do we have to see them here so often?

http://searchyc.com/submissions/Khan+academy?sort=by_date

http://news.ycombinator.com/item?id=1459869

http://news.ycombinator.com/item?id=1415147

http://news.ycombinator.com/item?id=1351584

http://news.ycombinator.com/item?id=1177230

http://news.ycombinator.com/item?id=995830

http://news.ycombinator.com/item?id=993632

http://news.ycombinator.com/item?id=898167

http://news.ycombinator.com/item?id=892222

http://news.ycombinator.com/item?id=733383

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#4

Post by MusicTrainer » Mon, Jun 28, 2010, 2:45 PM UTC

I agree that higher education is the next wave. I am doing kinda the same thing as this math teacher but with music. http://www.MusicTrainer.com . I should be "officially" launching soon. Please let me know what you think. I read hackernews everyday and value the opinions of the community here.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#5

Post by robryan » Mon, Jun 28, 2010, 4:15 PM UTC

chime wrote: post #2

I finished my undergrad 6 years ago and want to get into a PhD program in a year or two. I expect my research will pertain to DSP and involve FFT/DFT on a regular basis. To brush up on my math (PreCalc, Calculus, Linear Algebra etc), I've been watching Khan's videos nightly. I must say his videos are a great way to recollect what you've already understood once but forgotten now. I wish there was a way to speed them u…

Yeah I'm planning on going through the stats stuff on there, failed a stats class last year because I didn't really give it attention so want to make sure I pass it easy this time round.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#6

Post by slug » Mon, Jun 28, 2010, 4:45 PM UTC

MusicTrainer wrote: post #4

I agree that higher education is the next wave. I am doing kinda the same thing as this math teacher but with music. http://www.MusicTrainer.com . I should be "officially" launching soon. Please let me know what you think. I read hackernews everyday and value the opinions of the community here.

From what I've seen the video quality is very good and I like the introduction video. Do you plan on focusing only on these four kinds of instruments? Keep the good work!

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#7

Post by amh » Mon, Jun 28, 2010, 5:19 PM UTC

chime wrote: post #2

I finished my undergrad 6 years ago and want to get into a PhD program in a year or two. I expect my research will pertain to DSP and involve FFT/DFT on a regular basis. To brush up on my math (PreCalc, Calculus, Linear Algebra etc), I've been watching Khan's videos nightly. I must say his videos are a great way to recollect what you've already understood once but forgotten now. I wish there was a way to speed them u…

It would be cool if he offered all the courses as a single download via torrent or perhaps a mail-order DVD.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#8

Post by MikeCapone » Mon, Jun 28, 2010, 5:58 PM UTC

MusicTrainer wrote: post #4

I agree that higher education is the next wave. I am doing kinda the same thing as this math teacher but with music. http://www.MusicTrainer.com . I should be "officially" launching soon. Please let me know what you think. I read hackernews everyday and value the opinions of the community here.

Excellent start! I like the way the website is set up, and the videos seem to be high quality.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#9

Post by sandGorgon » Mon, Jun 28, 2010, 6:57 PM UTC

They also have an open-source code repository for some web applications that they are trying to build.

http://code.google.com/p/khanacademy/

I daresay that they could use technical help from all the web/javascript gurus out there.

Re: Khan Academy: A global teacher of 1,516 lessons and counting

#10

Post by stewars » Mon, Jun 28, 2010, 7:50 PM UTC

MusicTrainer wrote: post #4

I agree that higher education is the next wave. I am doing kinda the same thing as this math teacher but with music. http://www.MusicTrainer.com . I should be "officially" launching soon. Please let me know what you think. I read hackernews everyday and value the opinions of the community here.

The site looks like it will be a great resource especially for young people learning. Just curious why are you disallowing anyone under 18 from using it?