Khan Academy

Spend an afternoon expanding your knowledge with Khan Academy. Whether you're a student, teacher, or just someone looking to learn something new, our personalized learning library is available to you for free. With thousands of interactive exercises, videos, and articles, you can study a wide range of subjects including math, science, economics, grammar, history, and more.

Sharpen your skills with practice exercises, quizzes, and tests that provide instant feedback and step-by-step hints. You can follow along with what you're learning in school or practice at your own pace. And with the ability to bookmark and download your favorite content, you can even learn offline.

Our mastery system is tailored to your current learning level, giving you instant feedback and recommendations on which skills and videos to try next. And if you create a free account, your progress will sync across all your devices, keeping you up-to-date on your learning journey.

With expert-created videos, interactive exercises, and in-depth articles, you can learn a variety of subjects including math, science, economics, humanities, and even computer science principles. And for those already familiar with the Khan Academy website, our app may not have all the same features. For community discussions, computer programming content, test prep, parent and teacher tools, and district tools, please access our website directly.

Khan Academy is a 501(c)(3) nonprofit organization with a mission to provide a free, world-class education for anyone, anywhere. So whether you're a student, teacher, or just someone looking to expand your knowledge, Khan Academy is here to help you learn and grow.