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About | Khan Academy
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
2024年4月25日
Khan Academy Math
Algebra: Linear equations 1 | Linear equations | Algebra I | Khan Academy
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Algebra: Linear equations 1 | Linear equations | Algebra I | Khan Academy
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Introduction to the quadratic equation | Quadratic equations | Algebra I | Khan Academy
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Introduction to the quadratic equation | Quadratic equations | Algebra I | Khan Academy
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已浏览 148.1万 次2007年1月28日
Introduction to solving an equation with variables on both sides | Algebra I | Khan Academy
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Introduction to solving an equation with variables on both sides | Algebra I | Khan Academy
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85K views · 2.9K reactions | We’re excited to announce that studying...
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518 reactions · 282 shares | "It's amazing, and it's free. It's free!" – LaToya Grubbs, middle school teacher, Georgia. Join Khan Academy today to help every student succeed with personalized practice. | Khan Academy | Facebook
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518 reactions · 282 shares | "It's amazing, and it's free. It's free!" – LaToya Grubbs, middle school teacher, Georgia. Join Khan Academy today to help every student succeed with personalized practice. | Khan Academy | Facebook
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55K views · 1K reactions | Donations to Khan Academy make stories like Heather’s possible. | Khan Academy | Facebook
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55K views · 1K reactions | Donations to Khan Academy make stories like Heather’s possible. | Khan Academy | Facebook
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Khan Academy Science
Introduction to electrolysis | Redox reactions and electrochemistry | Chemistry | Khan Academy
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Introduction to electrolysis | Redox reactions and electrochemistry | Chemistry | Khan Academy
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Introduction to the cell | Cells | High school biology | Khan Academy
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Introduction to the cell | Cells | High school biology | Khan Academy
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Cell parts and their functions | Cells and organisms | Middle school biology | Khan Academy
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Cell parts and their functions | Cells and organisms | Middle school biology | Khan Academy
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85K views · 2.9K reactions | We’re excited to announce that studying...
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85K views · 2.9K reactions | We’re excited to announce that studying...
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518 reactions · 282 shares | "It's amazing, and it's free. It's free!" – LaToya Grubbs, middle school teacher, Georgia. Join Khan Academy today to help every student succeed with personalized practice. | Khan Academy | Facebook
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518 reactions · 282 shares | "It's amazing, and it's free. It's free!" – …
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55K views · 1K reactions | Donations to Khan Academy make stories like Heather’s possible. | Khan Academy | Facebook
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"One of the tools that I choose to use because I believe in the curriculum, the rigor in it, is Khan Academy." – Isai Baltezar, 3rd-grade teacher, California. | Khan Academy
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"One of the tools that I choose to use because I believe in the curric…
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64 reactions · 14 shares | Empower students with creative thinking, problem-solving, and collaboration skills through FREE science activities from Khan Academy and Adobe. Ready-to-use resources for future-ready classrooms—download now! | Khan Academy | Facebook
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Download & Play Khan Academy Kids: Learning! on PC & Mac (Emulator)
Download & Play Khan Academy Kids: Learning! on PC & Mac (Em…
2021年10月4日
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Combining multiple joins | Computer Programming | Khan Ac…
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Challenge Your First Button Khan Academy
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Introduction to logarithm properties (part 2) | Logarithms | Algebra II | …
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Lecture 1 | Programming Methodology (Stanford)
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已浏览 129.9万 次2020年3月2日
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Lecture 2 | Programming Methodology (Stanford)
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已浏览 19.7万 次2020年4月13日
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Intro to Variables | Computer Programming | Khan Academy
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Incrementing shortcuts | Computer Programming | Khan Academy
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