All of the site's resources are available to anyone
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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.
The Khan Academy's materials and resources are available to you completely free of charge.
A free world-class education for anyone anywhere.
The 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 to 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. The 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 video library, practice exercises, and assessments from any computer with access to the web.
- Complete custom self-paced learning tool
Coaches, parents, and teachers
Coaches, parents, and teachers have unprecedented visibility into what their students are learning and doing on the Khan Academy.
- Ability to see any student in detail
- A real-time class report for all students
- Better intelligence for doing targeted interventions
Over 3000 videos
Our library of videos covers K-12 math, science topics such as biology, chemistry, and physics, and even reaches into the humanities with playlists on finance and history. Each video is a digestible chunk, approximately 10 minutes long, and especially purposed for viewing on the computer.
"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
A world of exercises, with help along the way
Practice math at your own pace with our adaptive assessment exercises. 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.Your stats, instantly
Every time you work on a problem or watch a video, the Khan Academy remembers 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 exercise problem that you've ever worked on. You'll see real, hard data about your increasing mastery of math.
A map of knowledge
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