Khan Academy for Android

11 things about Khan Academy

1. Whether you're a student, teacher, homeschooler, principal, adult returning to the classroom after 20 years, or a friendly alien trying to get a leg up in earthly biology — Khan Academy's personalized learning library is available to you, for free.

2. - Pick up where you left off: Tailored to your current learning level, our mastery system gives instant feedback and recommendations on exactly which skills and videos to try next.

3. - Keep learning when you're offline: Bookmark and download your favorite content to watch videos without an internet connection.

4. Khan Academy is a 501(c)(3) nonprofit organization, with the mission of providing a free, world-class education for anyone, anywhere.

5. And, if you choose to create a free account, your learning syncs with so your progress is always up-to-date across all your devices.

6. - Sharpen your skills: Practice exercises, quizzes, and tests with instant feedback and step-by-step hints.

7. - Learn anything, for free: Thousands of interactive exercises, videos, and articles at your fingertips.

8. Already familiar with the Khan Academy website? Not all functionality is available in this app.

9. Follow along with what you're learning in school, or practice at your own pace.

10. Or, if you're feeling particularly adventurous, learn how fire-stick farming changes the landscape of Australia.

11. Study math, science, economics, finance, grammar, history, government, politics, and much, much more.