Quizzes and unit tests are here! Save time as you prep for a test or catch up in class. We just won the 2018 Google Play Best Social Impact award! Device syncing between the app and, so your progress is always up to date Offline access to keep you learning even when you’re not connected to the internet Bookmarks for easy navigation to your favorite content Practice questions with instant feedback and step-by-step hints

Thousands of videos and articles at your fingertips in math, science, economics, computing, finance, grammar, history, government, politics, and much, much more It doesn't matter if you are a student, teacher, homeschooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology-Khan Academy's materials and resources are available to you completely free of charge. Or, if you’re feeling particularly adventurous, learn how fire-stick farming changed the landscape of Australia. Learn about the fundamentals of music notation. Spend an afternoon brushing up on statistics.

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