A free world-class education for anyone anywhere. Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere. All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology. Khan Academy's materials and resources are available to you completely free of charge.
How it works for students Students can make use of our extensive library of content, including interactive challenges, assessments, and videos from any computer with access to the web.
Coaches, parents, and teachers Coaches, parents, and teachers have unprecedented visibility into what their students are learning and doing on the Khan Academy.
A world of skills to practice, with help along the way Practice math at your own pace with our adaptive assessment environment. You can start at 1 + 1 and work your way into calculus or jump right into whatever topic needs some brushing up. Each problem is randomly generated, so you never run out of practice material. If you need a hint, every single problem can be broken down, step-by-step, with one click. If you need more help, you can always watch a related video.
Learn about anything Our library of content covers math, science topics such as biology, chemistry, and physics, and even reaches into the humanities with playlists on finance and history. "I teach the way that I wish I was taught. The lectures are coming from me, an actual human being who is fascinated by the world around him." —Sal
Your stats, instantly Every time you learn on Khan Academy, we'll remember what you've learned and where you're spending your time. We keep all of this data private but expose powerful statistics to each user and their coaches. You get at-a-glance information about everything you've been learning and whether or not you've been hitting your goals. You can drill all the way down from a bird's-eye view of your profile into each and every skill practice problem that you've ever worked on. You'll see real, hard data about your increasing mastery of math.
Badges worth bragging about We're full of game mechanics. As soon as you log in, you'll start earning badges and points for learning. The more you challenge yourself, the more bragging rights you'll get. We've heard of students spending hour after hour watching physics videos and 5th graders relentlessly tackling college-level math to earn Khan Academy badges. Some of the smaller badges are very easy, but the most legendary badges might require years of work.
Your classroom data...finally Teachers and coaches can access all of their students' data. You can get a summary of class performance as a whole or dive into a particular student's profile to figure out exactly which topics are problematic. The coach reports let coaches glance at their dashboard and quickly figure out how to best spend their time teaching. We've put a lot of energy into making sure that the Khan Academy empowers teachers by giving them access to the data they should've had for years. You'll know instantly if a student is struggling in multiplying fractions...or if she hit a streak and is now far ahead of the class.
Math - Khan Academy
The first math topic. Start here if you want to learn the basics (or just want to make sure you know these topics).
Conceptual videos and worked examples from basic algebra through algebra 2. Includes videos from the former algebra worked examples playlists.
Conceptual videos and work...
Health and medicine
The medical world can be a confusing place. Patients and their families might feel overwhelmed by the large vocabularies and complicated explanations they get from their health care providers. Students entering health care also struggle to grasp the complexity of health sciences, and are forced to memorize huge amounts of information. We hope...
Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high school or college chemistry assumed (although there is some review).
Intro to JS: Drawing & Animation
Microeconomics - Khan Academy
Topics covered in a traditional college level introductory microeconomics course
Finance and capital markets
Journey into cryptography
How have humans protected their secret messages through history? What has changed today?
Macroeconomics - Khan Academy
Topics covered in a traditional college level introductory macroeconomics course
Interviews with entrepreneurs
Personal lessons and insights from accomplished entrepreneurs are the basis of this interview series produced by the Ewing Marion Kauffman Foundation and Khan Academy.
Art history - Khan Academy
Spontaneous conversations about works of art where the speakers are not afraid to disagree with each other or art history orthodoxy. Videos are made by Dr. Beth Harris and Dr. Steven Zucker along with other contributors and maintained at http://smarthistory.khanacademy.org/.
Art History Basics
New to art? If so, this is a good p...
Cosmology and astronomy
Videos attempting to grasp a little bit about our Universe (many of the topics associated with "Big History")
Music - Khan Academy
An exploration of classical music as a living tradition. Top orchestral players from across the United States meet once-a-year in New York as the All-Star Orchestra to record masterpieces and new works with Music Director Gerard Schwarz. Come behind the scenes, meet the musicians, attend an open rehearsal, gain a conductor's perspective, an...
Philosophy - Khan Academy
Wi-Phi introduces people to the practice of philosophy by making videos that are entertaining, interesting, and accessible to people with no background in the subject. Wi-Phi is run by Gaurav Vazirani and a team of dedicated graduate students who collaborate with some of the best philosophers in the world to produce...
Journey into information theory