What is Reddit's opinion of
Khan Academy?
From 3.5 billion Reddit comments
100 reviews of this app found across Reddit:
Khan Academy. My friend showed it to me senior year. It's a great video website for learning various elementary to college level topics. The instructor and creator of the videos is just an amazing teacher. http://www.khanacademy.org/
From what you have writtten above it is quite clear that you are not "retarded". You seem to be quite able to express yourself and, if fact, do so in a clear and concise manner. Don't be so hard on yourself.
Have you been tested for any learning disabilities that may effect your ability to do well in tests? If you have and are all clear then it could just be the case that you need a different teacher. Have you tried looking online for learning opportunities such as with Khan Academy? You may just need to find a teaching style that works for you.
http://www.khanacademy.org/#credit-crisis.
The mother site contains over 2000 short, 2 minute videos on various topics. The Site listed includes 15 or so that explain the underpinings of the financial crisis including mortgage backed securities, credit default swaps, etc., These videos are informative, and the information is easy to digest.
By making it boring via tedious, rote work. By failing to point out the magic. By not making it clear how such things will be useful down the road. Story problems are generally situations no one is ever actually in. I have never had 25 apples and had to distribute them among three friends.
If classes were more integrated and some more practical things were taught sooner—simple programming and engineering and scientific experimentation—which made use of various mathematical techniques recently learned in another class, I think students might actually be more engaged.
Additionally, I'm not sure what exactly it is that makes it different from regular classroom learning, but the videos on the Khan Academy are extremely engaging and can, over just a short series of 10 minute videos, teach concepts that take years to learn in schools.
Higher Education: The next bubble to burst. It simply can't continue on the path it's on now.
I like what the Khan Acadamy is doing. The evolution of this will be the future of the educational system.
We should be teaching our kids to be autodidacts and getting their own education.
Hi I am the creator of this video.(the above links to a stolen clip re-posted on youtube). My full series is posted at (www.youtube.com/user/ArtOfTheProblem). Originally a kickstarter project: http://www.kickstarter.com/projects/artoftheproblem/gambling-with-secrets/ funded with 1 dollar to spare)
This series recently lead to a (dream) job at Khan Academy (I was lucky that Sal saw a clip on YouTube!)
I'm posting videos + interactive explorations & programming adventures using John's amazing CS tool (http://www.khanacademy.org/cs/prime-adventure-level-1/1018672065)
ps. Next week I'm starting a new series on Information Theory!
ppss. All of these are also available on university of reddit
The Khan Academy is helping me change my life! I'm going to shift gears from the social sciences to STEM over the next year, and it's helping me tackle the biggest hurdle for me: mathematics.
Check out Khan Academy. All of their learning tools are free and you can find practically anything you would like. iPod-U also has some great learning tools, but I seem to remember most of them being at university level.
You may also want to speak with your local librarian about a literacy coach. There are volunteers who will help you with your reading level if that's something you're uncomfortable with. You may also want to check your local university about adult learning courses. They will teach you study skills, and will enroll you at the level (finite, pre-algbra) you're currently at so that you're successful over the course of your academic career.
Learn something that you've always wanted to. It doesn't necessary have to be academic, it can be anything you're curious about. You'll meet people with like interests along the way.
I taught my daughter calculus starting around age 6-7. Actually Salman Khan did most of the work. She's now 10 and knows most of the math that I do and then a bit.
All the rest of you with school age kids, start them on Khan academy! If you don't know the material, learn it yourself. It's not really that hard, and it's shameful how much public schools have dumbed down math education.
I disagree. Coding may be different from computer science, but you wouldn't try to start teaching someone physics by throwing them into the deep end of a textbook full of equations and no pictures.
>Rather than starting Computer Science education off by explicitly teaching how a computer works or fundamental programming concepts (like variables, logic, control structures, etc.) you put the student into code of graduated complexity and encourage them to manipulate, explore, and write their own programs.
>(from Redefining the Introduction to Computer Science via viddy)
Starting with interactive coding which give immediate visual feedback is one of the best starting points. They have a tutorial on Turing machines and I'm sure that as students progress to that point, there will be more demand for diving deeper into computer science itself.
I used to have this problem...
I spent a lot of time at school / uni / work not being great at maths. I used to understand the concepts of algebra and pre-calc etc at a high level but really couldn't apply it. It just didn't make sense to me.
The turning point came when someone (my wife) pointed out that I seemed to be missing some of the fundamental experience with the basics of maths. Stuff that I felt I should just know. I was actually oddly unable to even admit to myself that i really didn't know some of the stuff that (in my mind at least) was trivial.
The way I solved this was to go right back to the beginning - learning very basic fractional manipulation, really simple algebra from simple linear equations, on to simultaneous equations, to quadratics and pre calc.
This was an eye-opener for me as once I started laying solid foundations to my understanding it was so much easier to build on.
Later in life I went on to study for an undergraduate degree in Maths. Something I'd never have done without someone pointing out to me that you can't build a house without good foundations.
Try this out http://www.khanacademy.org/ There's a Math(s) section and it's very good.
TL;DR: If you're struggling maybe you need to go right back to basics and build up your understanding. It worked for me.
Right after submitting my entry i also learned that I could've just linked the actual friggin site instead of the wiki article I was reading >.< Oh well:
Edit: wtf, I can't believe that searching for the original Khan academy URL would take me to the University of Reddit which I've linked. That clearly needs to be regurgitated on the front page more often!
If you need additional help you might want to check out Khan Academy. It's basically the largest free online school and it's designed to help you all the way from 1 + 1 to advanced calculus, along with lots of other subjects. If you want to learn more about it you can watch a good video about Khan here. Hope this helps!
If you're serious, you might wanna know about Khan Academy. I sucked ass as math, but nowadays (and 50+ videos further) I don't suck as much anymore :D
Note: the website ~~needs~~ requires a Google or a Facebook account to log in to.
edit 3: You'll need to log in when you want to practice! It is acutally not required when you want to watch videos!
Khan Academy is wonderful. Start from the basics, though, even if you think you're good. Mathematics builds upon itself, and without a proper foundation you can't really progress.
And this is why the Kahn Academy model is so sorely needed to educate the future.
I hated school because I was bored, and also one of the reasons why I did not do well. The main one being I was lazy.
Look up the Khan Academy. Its a free online college level education with hundreds of videos on many subjects. There are 63 biology videos, each is about 20-30 minutes and explained very well. I homeschool but everyone in my family is an atheist. I take many Khan academy courses as a part of my education and I recommend you do to.
Heres a link http://www.khanacademy.org/
I have no specific useful tips (nor do I claim to be particularly good at math, only interested), but something that really helped me was Khan Academy. All the lectures are in video with pertaining exercises. He is really good at explaining and giving examples so it is easy to understand. If you're having trouble with multiplication and division, maybe the arithmetic-section is something for you to start with?
I know you're kidding but maybe we could all use a little bit more of the r/universityofreddit and Khan Academy-ies of the world and a little less of r/pics
I'm sure this is gonna get posted 1000 times but here are some useful links to catch up.
http://www.khanacademy.org (Math/Science)
http://www.coursera.org (Focus on computing math, but many various courses)
http://www.duolingo.com (Foreign language)
> I genuinely wish I understood more about the bailout, though. It was one hell of an economic event.
I haven't watched any of the Khan videos before, so I decided to pick one at random and record my thoughts. I picked the video on inverse sine
http://www.khanacademy.org/math/trigonometry/v/inverse-trig-functions--arcsin
It starts off pretty well, though I would have chosen an angle other than pi/4 since it has the same sine and cosine. It would have been harder to derive the sin of (say) pi/6, but that should be something all students would be able to do by the time they got to learning about inverse trig functions.
When he starts talking about the domain of arcsin, he doesn't explain why the domain is what it is. Why not 0 to pi? Why not 0 to 2pi? These are natural questions students ask when learning this concept.
In general the video seems unpolished and stream-of-consciousness, which is fine, but you can tell that he isn't an experienced math teacher. His refusal to use parentheses is aggravating to see, especially when he writes stuff like sin^-1 -sqrt(3)/2. There are several ways students will commonly misunderstand that collection of symbols, and he breezes right over it.
My conclusion is that this video would be a useful resource for a student learning this material, but not really a replacement for a well-trained math teacher/professor. Granted, many students have a teacher/professor who is not well-trained, in which case these videos may be the best resource they have available.
I wonder if Khan has considered hiring a professional mathematician/physicist/etc. to improve his videos? Given the popularity of the videos, I would think he'd be able to afford it.
Khan Academy may not exactly be deemed all interactive but it has a huge amount of videos available and quite a number of interactive mathematics practice, so it is well worth your time if you want to learn science and maths stuff.
MIT has free online courses for CS, Khan Academy has many helpful Math and Logic lessons, all of which are free, and here are a ton of free online CS textbooks.
Did I mention all of those are free? You no longer have any excuses. God speed, my friend.
you may find help here in this massive amount of free instructional video published at Khan Academy
>Topics covered in the first two or three semesters of college calculus. Everything from limits to derivatives to integrals to vector calculus. Should understand the topics in the pre-calculus playlist first (the limit videos are in both playlists)
Get a few garbage bags and throw out everything you don't need in that computer room. Make it look tidy, at least briefly, like it was being shown to sell.
Get out of the house. Walking is a form of exercise. You can lose weight that way. Don't put crap in your body - especially when weight loss is a major goal.
Figure out what is at khanacademy.org. Make your self spend 1 hour a day there. Set up an account and start at the beginning.
You can learn useful overviews of topics and history over at wikipedia. Focus on school topics. Get some knowledge in your head.
Schedule your time. By 9am, eat breakfast, shower, get dressed and do something for exercise. Late morning, early afternoon, learning. Don't waste your time; actually learn something. Finally, after supper - you're done. It's you time. If you didn't get enough done, work harder tomorrow at getting it done during the day. Don't spread the misery out.
Eventually you want to get yourself into an adult education class. Lots of people do this. This up coming week find out where you will eventually go to do this in your city.
Once you're in a better place, get a part time job. So what if it pays minimum wage.
Remember: You want to be a more reasonable weight (diet + exercise) and more educated (useful time on specific websites + adult education). The mess you're in didn't happen over night and will take time to turn around. Don't dwell on the past -- work on getting to a better place.
I don't who you're living with, but consider letting them in on your plan. Let them know that you're working towards improving yourself.
Recap: Clean up your office and bedroom well. Stop drinking sugary coke. Stop eating poorly. Walk; exercise. Focus of learning. Don't sabotage your life.
I'm listening right now. He's trying to make a case for astrology.
I love the podcast, but Joe really needs to start becoming better educated. There's no excuse these days for someone who claims to be interested in how the world works to remain ignorant of the actual reasons.
The moon doesn't have any effect on behavior, if that were the case we'd be able to run an experiment to show that to be the case.
Joe, or anyone associated with the podcast that might see this, please spend an hour or 2 a week at Khan Academy.
Most of the things that fascinate have actual, testable answers that are far more fascinating than the boring, false answers given by charlatan astrologers.
Also, soon EdX will be running full scale.
I'm truly sorry. You have been cheated of your right to an education by scoundrels.
Check this out: http://evolution.berkeley.edu/
This should be useful also: http://www.khanacademy.org/science/biology/v/introduction-to-evolution-and-natural-selection
First, you are awesome.
The hardest thing is going to be the math. You must know it cold. Any gaps will slow you down until you just can't keep up any more. Try http://www.khanacademy.org/ to see if that format works for you. Otherwise, may be try and find out your school's textbook and work through it before taking the class.
For fun, try tutoring underprivileged high school kids in math and science. It's incredibly rewarding, and teaching is the best way to learn a subject inside out.
I could never have gotten through it by myself. I recommend to seek out groups to study with, going to office hours (write down questions during class on everything you don't understand if it's a large class and you can't ask during), people who have taken the class before / tutors, and check out websites like these:
http://www.khanacademy.org/
http://patrickjmt.com/
http://www.allaboutcircuits.com/
Depending on the area of ECE you go into, it can become less math and physics oriented. Depending on courseload, I would recommend not working part time, but don't study constantly. Take breaks and have fun: your mind will work towards figuring things out even while you're not actively studying.
ECE isn't for everyone, but if it's your passion, don't give up yet.
Khan Academy explanation of Compound Interest:
http://www.khanacademy.org/video/introduction-to-compound-interest?playlist=Finance
http://www.khanacademy.org/video/the-rule-of-72-for-compound-interest?playlist=Finance
I'm curious as to why I would want to go to RedditU rather than better, proven offerings like Khan Academy or even wait for MIT&Harvard to fully spool up EDx or even the iTunes U course materials that are available?
Why not even partner with these institutions? Why would I want to learn from some schmuck on Reddit instead of going to these other places?
Here's a great resource for secular homeschoolers:
Right now it's still math-oriented in its exercises (that's not a bad thing but I'd like more), but there are a lot of videos on a lot of subjects that are good watching.
Don't worry, it's a pretty simple concept. Basically, the adenosine group is linked to three phosphate groups in a chain, an arrangement that causes the third phosphate group to exist in a high energy state. Thus, the detachment of the third phosphate group results in a release of energy that can then be harnessed for other processes. You end up with ADP (adenosine diphosphate, intuitively) and a 'free-floating' phosphate group, which can be united again to transport more energy (the basic idea behind the cellular respiration and light-dependent reactions of photosynthesis). At least, that's my understanding. I'm not a biologist, just a high school student with a strong interest in the subject.
This video from Khan Academy explains it really well.
There are many like you, and always, the Khan Academy is brought up. If you haven't checked it out, I would start there.
If you insist on getting a book, I really have no idea what to recommend you. Sorry.
Not to discourage other redditors from putting a class together on this, but have you considered using Khan Academy? Sal's an excellent instructor and you're able to practice your newfound skills in various problem sets. There's even achievements!
http://www.khanacademy.org/ I use that, and I get out there and read real books. Reddit has helped my view a lot as well, because in my environment I wasn't getting any kind of good literature or science advice.
Oxford History of the French Revolution by William Doyle
Khan Academy has a bunch of great video lectures about the French Revolution and Napoleon
Thanks. I love stuff like this and these guys do a lot of kinesiology and exercise science-which is good! If anyone want more free education, particularly in math and science, check out Khan Academy. Also, hook me up with any other websites you may find that are similar.
Lots of truth in that - I sucked at maths in high school whereas I'm a straight high distinction student now. (Those are A's for you Americans).
At the start of last year one of my lecturers said maths is easy - and somehow it just sunk in that it is.
I think in many ways the reason that I struggled in high school was not being taught the whole of a method, or at least enough that you can understand its properties.
Maths is a subject you can get great grades in just through practice. It now seems easier to me than writing creatively for instance.
So in essence, just keep at it. If you are struggling watch some lectures on youtube or through khan academy.
I'd just like to point out this phenomenon isn't US specific. It happens here in Finland even though we're said to have some of the best (mathematics) teachers in the world. (This is according to PISA studies.)
What I've learned to do is look up all the things I'm expected to learn at Khan Academy. They don't have anything on local diffeomorphisms, but everything up to that point I've found a clear explanation to!
Good for you! I hope that the love keeps flowing, but there are times when things mighty get sticky. When that happens, don't forget all the places you can go for help like r/cheatatmathhomework, The Kahn Academy, Ask Dr. Math, your campus tutoring center, etc.
If you want to improve your intelligence, you can use websites like MIT open courseware and http://www.khanacademy.org/ to improve anything you wish, if you are willing to watch the lessons and do examples.
Two very good sources for someone looking to learn. As an aside, I wouldn't worry about the fact that you found it difficult to follow Inside Job; derivatives such as CDOs and CDSs are complex even to experienced investors.
I'm going to use a sports analogy (this is ELI5 after all)
Red Team (Republicans) and Blue Team (Democrats) choose who they want their captain to be with primaries and caucuses. In primaries and caucuses, the team mates vote. In a closed primary, you can only vote for team mates to be the captain of their team. In an open primary, you can vote for the other team's captains. A caucus is a little more complex (watch the aforelinked video).
After each state votes, they win delegates, which are people who pledge to vote for a candidate. The delegates then go to each team's meeting (Republicans: RNC, Democrats: DNC) and put in their vote, representing the rest of the team's wishes. Depending on how that vote goes (we usually know the result before they actually go to their meetings to vote), the person that they ultimately choose to lead their team is put on the ballot so that anyone (on the Blue Team, Red Team, or other smaller teams) can vote for him to win.
OP's question is like asking, "What if Blue Team people go on Red Team so that they can vote for a bad captain that would make it easier for Blue Team to win?"
He prefers to keep his religion a private matter, and on the website it says:
"If you believe in trying to make the best of the finite number of years we have on this planet (while not making it any worse for anyone else), think that pride and self-righteousness are the cause of most conflict and negativity, and are humbled by the vastness and mystery of the Universe, then I'm the same religion as you. "
What we can safely say is that there's a decent chance he has been influenced by Islam(as many of his relatives are Muslim. That said, it's relevant to note that historically Muslims connected the ancient Greek un-translated works with Renaissance Europe, so we don't think that somehow being religious is being anti-science.... ).
I strongly recommend reading Darwin's On the Origin of Species. I know it doesn't sound original, but there's a reason it made a stir! Clear, simple thinking. You can memorize a lot of facts, but to understand the underlying forces and reasons that explain why those facts align in the way they do - you'll need to understand evolution. And it's not really that complex.
Also, Khan Academy.
^-- I cannot recommend this strongly enough. Free videos that go through pretty much everything you'll need to know in a first-year biology course at college.
And just for fun: the video that jumpstarted my love for molecular biology. Watch this, and don't worry that you don't understand most of what you're watching. It's all of the little molecular biological interactions that made the original scene possible: movement of a white blood cell through the veins, eventually slipping between two cells in the wall. Beauty. Pattern. As you learn later, you'll enjoy coming back and watching and saying, "Aha! I know what happened there!" Have fun with your studies kelsbar. Welcome to the world of biology.
Watch this and the following videos: http://www.khanacademy.org/v/currency-exchange-introduction?p=Currency
It takes him a few videos to start explaining the China situation, but you need the background to understand what's going on.
You need to distance yourself from the negativity as quickly as possible. Cut ties, leave them to fend for themselves. You're obviously hardworking and most likely smart, but just stuck in an awful situation.
Its hard to comment on what you should to do since you must have a very different standard of living. But try to get out as fast as you can. Just leave a note and never look back.
If you can provide more details of where you live/what you're willing to do (leave your home, move cities/countries, etc), it may be easier for people to give you advice.
Evoultionisafact linked this: http://www.khanacademy.org
Try it out, even if you continue working the bad job for another year or two, you may be able to learn some fantastic skills in the mean time!
I can't recommend the Khan Academy enough, when you've forgotten something in a math class you took previously, Sal does a great job of explaining it again and bringing you back up to speed.
If you are studying for the GED and need help with the math portion, try using Khan Academy, if you don't already.
Sorry for the unsolicited advice. Hope you aren't offended. Good luck!
Khan Academy is without a doubt the website you want to use.
It goes thru alot of maths and even economic ideas, that will definitely help you start. you can even login in and track which videos you have reviewed and track your progress
I'd start with these: Khan Academy - Biology and work your way into the Chemistry and Organic Chemistry sections.
I'll post them here for accessibility/historical.
Every item on the list is a direct link to Khan.
Side note-- It's worthwhile to mention Khan also has a large focus on python lessons
Prerequisites
Some of the topics in Introduction to Artificial Intelligence will build on probability theory and linear algebra. To brush up, here are some related videos from Khan Academy. Watching these videos is not required, and you can probably do well in the class even if you are not initially familiar with these topics but are willing to work hard.
- Basic Probability
- Probability (Part 6) [Conditional Probability]
- Probability (Part 7) [Bayes' Rule]
- Probability (Part 8) [More Bayes' Rule]
- Introduction to Random Variables
- Probability Density Functions
- Expected Value: E(X)
- Introduction to Matrices
- Matrix Multiplication (Part 1)
- Matrix Multiplication (Part 2)
- Inverse Matrix (Part 1)
- Inverting Matrices (Part 2)
- Inverting Matrices (Part 3)
- Matrices to Solve a System of Equations
- Singular Matrices
- Introduction to Vectors
- Vector Dot Product and Vector Length
- Defining the Angle Between Vectors
- Cross Product Introduction
- Matrix Vector Products
- Linear Transformations as Matrix Vector Products
- Linear Transformation Examples: Scaling and Reflections
- Linear Transformation Examples: Rotations in R2
- Introduction to Projections
- Exploring the Solution Set of Ax = b
- Transpose of a Matrix
- 3x3 Determinant
- Introduction to Eigenvalues and Eigenvectors
The community college stuff is a great idea. I'll just add that, while waiting to do that, you may want to buff up on some remedial stuff (chem, bio, algebra, trig, maybe calc, etc.) with the Khan Academy.
I'm going to side track this discussion in a positive way i hope! With things like http://www.khanacademy.org/ , people can be in charge of educating themselves. MIT is offering free online courses, and it's really the cheapest way of educating the masses.
He's on point about making sure you educate yourself on all aspects of a business, but if you don't want the hassle of an entire degree program just take some classes you think would be useful to you (business, math, basic accounting). There's also many great books and online resources if all you need to do is learn the material (Khan Academy, MIT Open Courseware)
Also, try and learn what you can from your boss (if you like the way he/she does things) or find another contractor you respect and learn from him/her. Mentors are a valuable resource. People have become contractors in the past and done it successfully with less information resources than you have now, you can do it! Best of luck.
Those are all quadratic equations. I'd look them up at Khan Academy: http://www.khanacademy.org/math/algebra
There are several ways of solving them, but if you're not already quite familiar with them, attempting to teach them in a post here won't work too well.
See the videos on solving them by factoring, by using the quadratic formula, and completing the square.
This really isn't a pure logic problem. Logic problems are real-life encodings for mathematical systems.
In this problem, you can check once - you can only "ask" the system one question about your input - and the system described can only tell you one light/switch pair.
Now if you take into account the heating of the lightbulb (which is fine in real life scenarios) the mathematical purity is gone. Why can't I set up a camera system in my trip upstairs?
That's why, in my opinion, this problem is lackluster. Something like the blue forehead problem (see Khan Academy video) can be proven mathematically by induction. The blue forehead room problem is a true logic problem.
Ahh! I was once you!
Okay, here's the thing, math math math! Math at least two hours a day when you're not in school, I'm not kidding, and I don't wish I were. I have this buddy, Khan, who'll teach you the main concepts of calculus, linear algebra and differentials. You can even practice some calculus problems, iffin you need!
Does your high school have a Science Olympiad team or sommat of the like? I'd hit that up! Honestly, it's worth it. Really good times and you learn so much.
Oh, and you can read and stuff, as well. You can read The Elegant Universe, The Trouble with Physics, look at QED by Feynman, etc.
So, math and physics! Keep practicing! Don't neglect other cool subjects such as chemistry and biology and philosophy and stuff, however. These are all important, too, I think! One thing I hate more than anything else is a peer who scoffs at the idea of like microbiology or something.
Oh, and learn to program. You'll have to learn it eventually if you're going into astrophysics, and you better start learning how to properly code now. I hate looking through some of the crap grad students often spew out. :| Here is something that can help you get started with that.
Oh, and as an undergrad, go to a grad student or a faculty member, ask what kind of research they're doing and get all involved and stuff. Getting into grad school isn't just about grades and things, it's also about who you know and what sort image you've established for yourself.
Or something.
Calculus is the obvious one, as integration and differentiation are used in a lot of other classes.
Linear Algebra and basic matrix operations. Pretty much every field in mathematics uses this as a base.
Most universities have a course on basic set theory and proof structures. It sets you up for the kind of thinking that is considered "real math".
Analysis would be the next step, the theorems are simple and intuitive but learning to prove them will develop your skills greatly.
Also, obligatory link to Khan Academy
I've already seen the answers posted but I wanted to post these Khan Academy videos that I found helpful when learning about this topic.
This is about calculating stellar distance using parallax.
And this one explains red and blue shifts.
I could write a long block comment but I feel Sal at Khan Academy does a better job of explaining than I can, also you might find some other cool cosmology/astrology videos you want to watch.
Have you ever heard of Khan Academy? I watched a video about a class room were the children spent all in-class time doing homework with the teacher, and their homework was watching videos from the site of their choosing.
and I don't care what #'s your professor assigns. Do all the problems for a given chapter, unless its like completely irrelevant shit ( to the course ). Understanding electron movement is worth 10x more then memorizing mechanisms.
Practice drawing hexagons in all your other classes.
I don't know if you're aware of the Khan Academy, but Khan's videos are an immense help when you're puzzling out new math topics. I highly recommend watching some of his vids.
These might be quite old/known/similar to others posted here, but Khan Academy has some great Brain teasers that are nicely explained. I enjoyed them a lot, hope you will too :) http://www.khanacademy.org/math/brain-teasers?k
Khan Academy explains this very well in a Currency Exchange lesson, available here.
Now, this video is if you want to learn about currency trading but it also shows you how the values of currencies change very well.
If your goal is to get into machine learning, linear algebra is going to be your best friend. There are structures like vectors and matrices that are elemental to the understanding of large scale data and data manipulation. Check out the Khan Academy to get grounded in the basics.
In general the more math and stats literate you become, the better off you'll be. MIT, Yale, Stanford and several other schools offer their courses online for free. I think Khan is the place to start because that was designed to be used by people on the internet who are learning the basics (i.e. you).
After that you will need to bone up on your programming skills. I like Python and R, both are free and have plenty of resources to help those who are new to the field. The Stanford online course in machine learning uses Octive, which is a development language for machine learning, but I don't know that much about it.
tl:dr Attend to your math first, then learning to program. You'll need a semesters worth of linear algebra (minimum).
Khan Academy is great IMO and has a cool exercise dashboard here which is a visual map of topics starting from basic addition all the way to some calculus. I'd suggest starting with the Addition 1 exercises. They go very quickly at first and it will help you brush up on the basic skills.
Here's a similar thread posted here about a week ago with more comments and some of the same info I've given you above.
Check out some of the other math subreddits linked to on the sidebar here too like r/learnmath.
I'm in the boat as you except I have done some calculus and calculus-based physics before. Good luck!
I would love to help but there is no way to do what you are asking, Options are not simple and take time and effort to learn and truly understand.
Have you watched the Khan Academy videos? I think they are pretty clear in their explanation.
Another place to get good information is the CBOE. Here is their basic option tutorial.
If you still don't get it, maybe try asking a more specific question.
Google says that was actually a serious answer? The internet is weird.
Also, for the lazy, or those who, like me, hadn't seen that one before - http://www.khanacademy.org/ (but feel free to let lnxaddct have the upvotes.)
Learning. It does cost money indirectly, but if you're reading this, you already have all the tools you need to learn a whole lot of things. A new language, how to program, mathematics, physics, chemistry... if you know where to look, you can find excellent quality material intended or suitable for self-instruction on just about any topic.
>You have a large group of people who are able to pay zero dollars every month towards their children's education.
Wait a second, why can they pay zero dollars? Are they unproductive members of society? Or are they unskilled workers that have been priced out of the job market by minimum wage laws?
There's no reason to believe that free markets wouldn't supply something that people demand at a price they can afford. There are already free education services online like Khan Academy, Coursera and others.
There could be schools that cover costs from advertisements. Students could take loans. Students could earn scholarships from organizations.
Or, institutions like the Christian Brothers set up actually tuition free schools for people in low income areas, using the profits from their tuition based schools (which are also competitively priced).
Have you had a look at the [khan academy](www.khanacademy.org)? I get my students to go there if they are missing some basic math skills that they need for my Physics class and they generally find it pretty helpful. For instance I just searched there for 'Gauss elimination' and found this video which gives a pretty good example for using Gauss-Jordan elimination to find the inverse of a 3x3 matrix.
You just need to practice your math until you become fluent at it. You should be able to look at a problem and, once you figure out what math you need to solve it, the actual calculations are elementary, like second nature. It's just like learning any other language, or a new sport; you're going to suck at it and struggle at first, but by doing lots and lots of practice of the basics, and then building up to the more difficult elements you will have success.
Don't let yourself worry about what others in your class think of you or your maths ability; you're in college now not high school, no one gives a fuck about what you're doing after the first few weeks.
http://www.khanacademy.org/science/computer-science/
Here's a LPT: don't just watch video's and expect you're learning. You need a project. Pick something you want to make, and make it. Pick small things to start with, so you don't get demotivated when you're stuck.
You are going to get stuck at some point, that's when you need to use google. There's ALWAYS someone that has come across the same problem you're trying to fix.
Good luck!
The share is a unit ownership in the equity of a company. The assets and hence equity increase in value over time for an efficient enterprise. Any acquisition of the company or subsequent public offering takes into account the current market value of the share price. Sal Khan covers it better than I can:
http://www.khanacademy.org/finance-economics/core-finance/v/what-it-means-to-buy-a-company-s-stock
I would like to recommend the Khan Academy sections on probability and linear algebra. (Not all of them, of course. Dip in and out when you need to.) It doesn't cost anything and the videos are probably of good-enough quality for your needs.
Good luck!
You get cancer because of telemorase.
Telomeres are like shoe-lace caps, they protect chromosomes from being 'frayed' and becoming useless. Telemorase creates telemores and attaches them to chromosomes during mitosis/meiosis. Telemorase is limited though, and with good purpose. If it was unlimited than cells would continue to reproduce, which is what cancer cells happen to do.
EDIT: For more clarification, our cells are timed to run out of telemorase because continuing to produce say, kidney cells, at an absurd rate would be a waste of energy. Damaged cells don't know when to stop so they keep reproducing, resulting in tumors on the affected area.
EDIT 2: For further further clarification, here's my main man Sal Khan talking about it. http://www.khanacademy.org/science/biology/v/cancer
First, congratulations on deciding to further your knowledge of basic math, you might decide to check out Khan Academy as you get to other subjects that you might have previously had trouble with. The answer to your question is that you have a "remainder" of 4. That means that 12/8 is actually equal to 1 + (4/8), or 1 plus 4 over the original denominator. That's why the calculator gives you .5 , you don't just put the remainder after the decimal point, you put it over what was originally on bottom to find the decimal.
I know it is in the sidebar, but I am just going to plug KhanAcademy.org again. Seriously, if you are struggling in calculus or other basic undergrad courses(chemistry/physics) this is such a wonderful resource. If you take time with these videos I am certain you can get an A in any of the subjects that he fully covers while gaining a better understanding than you do in a bland classroom. Another useful useful source for math is www.patrickjmt.com
Better luck next time around.
As he said, Cells that replicate often are the most likely, because each time a cell divides, it gives it a chance to cause a mutation that beings the waterfall effect called cancer. An example of a highly reproductive cell structure would be the lining in your colon, which replicate on a monthly basis (If I remember correctly). An example of the opposite would be in the heart, where cells take much longer to replicate, which is why Heart Cancer is a much rarer form.
Khan Academy has a great 4 part video on colon cancer that can help answer many questions that you may have on the spreading of cancer. Watch this first, then the next 3, and you will see a much more detailed explaination.
Don't forget about Khan Academy. I've watched both, both are great. Khan Academy is little less formal and it's a purely a lecture. Depends on what you prefer!
I think you don't understand leveraged buyout. Please watch
http://www.khanacademy.org/finance-economics/core-finance/v/basic-leveraged-buyout--lbo
LBO is the same as buying a house with a small down payment. It's not "laundering".
dude im twenty one and i still think the kahn academy computer science section is awesome. im a n00b at programming. plus i think she would liek the girl narrator, i do lol she is funny. http://www.khanacademy.org/cs/
I haven't specifically seen these videos but Khan Academy is usually a great place to start learning something. The videos are free and usually easy to understand.
The Khan Academy has a history section, with a few vids giving a general perspective on US specific history.
Start out with khan academy http://www.khanacademy.org/, I honestly havent watched the physics videos as Im currently using the site just to learn linear algebra but judging on how well he simplifys concepts in maths, I assume to does an equal job for physics. Learning physics early on is also fairly non linear so you can take a subject in it your interested in and start with that.
http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html is also a nice reference
Bookwise something short enough, fairly comprehensive and fairly easy is six easy pieces, its a compilation of some of the feynman lectures on physics and is a very good introduction to alot of the main concepts of physics, although slightly outdated towards the end
Pauls Online Math Notes, aka the greatest math site you can go to for step by step explanation. For videos khanacademy, or this guy cover pretty much any math related subject you will ever do.
http://www.khanacademy.org/#chemistry
I'm sure you're familiar with the Khan Academy. These videos "roughly cover a first-year high school or college course".
Just take a look at the titles and ask yourself how much of this stuff you can learn by experimenting with a high school level chemistry lab. If you want to do things hands on, sure, that's fine. But don't fool yourself into thinking you're going to get a "comprehensive understanding" of the subject. Sooner or later, you're going to have to read a book.
Math scared the crap out of me too, but I loved CS and decided to give it a shot. Made it out OK. A BS comp sci degree isn't quite as math heavy as you might think.
As for the rest... recently I found out about Khan Academy, and I'm trying to use it to recover from my terrible high school math education.
This is attitude is not limited to disposition towards homeless people, its a by-product of our evolution, arrogant and aggressive males get to breed with women more often than quiet, intelligent men with less confidence and aggressiveness, as a result more aggressive and stupid people make up the general population.
Not something you can do much about because women favour the alpha type, as long as that trait is the successful trait people will keep passing on these negative traits, scientific studies have already proven that behavioural traits are passed on through breeding, its how we have domesticated animals.
If you had a number of women with a choice between a male who is an intelligent, very agreeable to her, in general very pacifist like and peaceful and a male who is aggressive, stupid, arrogant, daring and generally more primal/primitive in his ways the woman will usually pick the latter, its how the nice guy argument comes up.
This shit is happening all the time and it will keep happening until we end up with a very aggressive, uncaring and stupid human population.
This is relevant, watch it http://www.khanacademy.org/video/evolution-clarification?playlist=Biology
Useful for a variety of sciences and it has quite a good series covering chemistry. I'm self taught with no post secondary experience and have managed to obtain at least an adequate understanding of the chemistry material.
Study up on your calculus first - it's important to have a very clear understanding of it. Your class textbook should be adequate to begin with, but I would recommend simply watching videos on the concepts rather than committing yourself to the early study of a textbook.
Physclips is a useful resource made by my own uni's first year lecturer. He gives fairly useful and upbeat explanations, and I believe you would get a good overview of standard first year topics.
Of course, as well as (or instead of) Physclips, Khan Academy is always worth checking out. He has a lot of videos on Physics and you can trust that you'll be getting excellent explanations if you go there.
Just on the off-chance that someone actually wants to know what purpose the Fed actually serves, and wants to step out of the bubble of /r/politics. Khan Academy (a site started by a couple of MIT graduates) has a really good explanation of why it is important.
Khan Academy. This is the best resource for many subjects, but it is best for math. He explains it very well and there are practice questions so you can see how you are doing. I just got done with 1010 in the spring at SLCC. I bet you just need a quick catch up for basic variables and graphs. Once you can get that base down you should be able to pick up higher level algebra from there.
Not super scientific so I hope I am not breaking the rules but Vi Hart of Khan Academy explains it in broad strokes in these videos. Her presentation is fascinating as well:
How to become a good theoretical physicist (very important)
http://www.youtube.com/education
Good luck.
> How come we ended up in a recession with them?
It had little to do with their spending. I suggest you educate yourself on the underlying causes of the banking crisis.
I'm Tiza (same IGN), I've played ~200 ranked games and ~1100 normal games. I'm currently ~1300 Elo (apologies for the fudging, I don't know off the top of my head). I have extensive competitive experience in other games and sports, as well as teaching experience, and I'm an active contributor to r/SummonerSchool. I'm trying to give back to the community to help the whole community grow smarter and stronger together.
There's a lot of things to know about LoL, and a lot of things that are easier taught than learned (as opposed to mechanics, which need to be learned). I'm trying to help players learn as much as they can the easy way, so they can focus on the stuff that can only be learned the hard way. My long-term goal is to create the Khan Academy of LoL - a place to guide low-to-mid-level players intuitively and comprehensively, instead of throwing them wordy, poorly-laid out single-champion guides or under-explained streams. =)