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Spend an afternoon brushing up on statistics. Learn how the Krebs cycle works. Lay a good foundation for geometry in the next semester. Prepare for upcoming exams. Or, if you're feeling extra adventurous, learn how fire stick farming is changing the Australian landscape.
Whether you're a student, teacher, homeschooler, principal, an adult returning to the classroom after 20 years, or a friendly alien trying to carve out a place in the field of geobiology, Khan Academy's personalized learning library is free for you to use .
- Learn anything for free: Thousands of interactive exercises, videos and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics and more.
- Improve your skills: practice, quiz and test with instant feedback and step-by-step tips. Follow what you learned in school, or practice at your own pace.
- Continue learning while offline: Bookmark and download your favorite content to watch videos without an internet connection.
- Pick up where you left off: Our mastery system is tailored to your current learning level, providing instant feedback and advice on exactly which skills and videos to try next.
Use expert-made videos, interactive exercises, and in-depth articles to learn math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, differential equations, linear algebra), science (biology, chemistry, physics) , economics (microeconomics, macroeconomics, finance, and capital markets), humanity (art history, civics, finance, U.S. history, U.S. government and politics, world history), and more (including computer science principles)!
Spend an afternoon brushing up on statistics. Learn how the Krebs cycle works. Lay a good foundation for geometry in the next semester. Prepare for upcoming exams. Or, if you're feeling extra adventurous, learn how fire stick farming is changing the Australian landscape.
Whether you're a student, teacher, homeschooler, principal, an adult returning to the classroom after 20 years, or a friendly alien trying to carve out a place in the field of geobiology, Khan Academy's personalized learning library is free for you to use .
- Learn anything for free: Thousands of interactive exercises, videos and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics and more.
- Improve your skills: practice, quiz and test with instant feedback and step-by-step tips. Follow what you learned in school, or practice at your own pace.
- Continue learning while offline: Bookmark and download your favorite content to watch videos without an internet connection.
- Pick up where you left off: Our mastery system is tailored to your current learning level, providing instant feedback and advice on exactly which skills and videos to try next.
Use expert-made videos, interactive exercises, and in-depth articles to learn math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, differential equations, linear algebra), science (biology, chemistry, physics) , economics (microeconomics, macroeconomics, finance, and capital markets), humanity (art history, civics, finance, U.S. history, U.S. government and politics, world history), and more (including computer science principles)!
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