Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more. It’s all free for …

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You’ll want Khan Academy’s unit guides in your toolkit. Developed by our learning experts, each guide includes student misconceptions, top teaching strategies, and step-by-step suggestions to help you …

Khan Academy is an American educational nonprofit organization founded in 2008 by Sal Khan. The company was created with a goal of providing free, high-quality learning resources to students …

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Khan Academy is a nonprofit providing a free, world-class education for anyone, anywhere. Our interactive practice problems, articles, and videos help students succeed in math, biology,...

Jul 29, 2025 · We provide articles, videos, exercises, quizzes, and tests for immediate feedback. Topics include science, English Language Arts, math, grammar, art history, computer programming, …

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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...