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Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Get a head start on next semester's geometry. Prepare for upcoming exams. Or, if you're feeling particularly adventurous, learn how fire-stick farming changes the landscape of Australia.
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.
- Learn anything, for free: Thousands of interactive exercises, videos, and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics, and much, much more.
- Sharpen your skills: Practice exercises, quizzes, and tests with instant feedback and step-by-step hints. Follow along with what you're learning in school, or practice at your own pace.
- Keep learning when you're offline: Bookmark and download your favorite content to watch videos without an internet connection.
- 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. And, if you choose to create a free account, your learning syncs with http://khanacademy.org, so your progress is always up-to-date across all your devices.
Learn using expert-created videos, interactive exercises, and in-depth articles in math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, differential equations, linear algebra), science (biology, chemistry, physics), economics (microeconomics, macroeconomics, finance and capital markets), humanities (art history, civics, finance, US history, US government and politics, world history), and more (including computer science principles)!
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∙ Bug fixes and performance improvements.
Ratings and Reviews
Khan Academy is an education app for everyone—whether you’re a parent helping your first grader with geometry or a postgrad looking for a deep dive into microfinance. If there’s a topic you want to learn about—no matter how basic or advanced—chances are Khan Academy has a video lesson for it.
Good for learning but once you get a question wrong you have to do the entire thing
They should add a feature where you can just skip the entire thing(not just the question you got wrong) once you get a question wrong, bc then i end up wasting my time.
Great learning tool, app needs work
Please, give us a n option to simply type in answers. Some require touch writing, and it’s infuriating to get a complex answer written in their correctly.
Feedback link in the app doesn’t work. Opens a pop up where both submit and cancel do nothing, forcing you to leave the app.
Reached a question where I can neither get hints or skip the problem, therefore I can no longer practice that topic.
I love khan academy, but these little problems can add up to ruin what would be an amazing learning tool
Developer Response ,
Thank you so much for taking the time to provide feedback on your experience with the Khan Academy App!
We'd love to hear your feedback in detail in our discussion section on the site where it can be voted and commented on by Khan Academy members in order to think about the experience improvement.
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