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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
7:28
Algebra: Linear equations 1 | Linear equations | Algebra I | Khan Academy
YouTubeKhan Academy
已浏览 286.8万 次2006年11月19日
Introduction to solving an equation with variables on both sides | Algebra I | Khan Academy
8:53
Introduction to solving an equation with variables on both sides | Algebra I | Khan Academy
YouTubeKhan Academy
已浏览 272.3万 次2010年9月15日
Basic addition | Addition and subtraction | Arithmetic | Khan Academy
7:43
Basic addition | Addition and subtraction | Arithmetic | Khan Academy
YouTubeKhan Academy
已浏览 353.3万 次2007年3月10日
热门视频
5K views · 243 reactions | We have an opportunity to jump start new and better ways for students to learn, empower teachers with new tools to supercharge learning, and bring even more high-quality resources to even more learners. As a nonprofit, we’re able to do this thanks to donations from people like YOU.  Every gift now will keep Khan Academy thriving for years to come. khan.co/SupportKhanAcademy | Khan Academy | Facebook
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5K views · 243 reactions | We have an opportunity to jump start new and better ways for students to learn, empower teachers with new tools to supercharge learning, and bring even more high-quality resources to even more learners. As a nonprofit, we’re able to do this thanks to donations from people like YOU.  Every gift now will keep Khan Academy thriving for years to come. khan.co/SupportKhanAcademy | Khan Academy | Facebook
FacebookKhan Academy
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We’re excited to announce that studying for the SAT for 20 hours on Khan Academy’s free Official SAT Practice is associated with an average score gain of 115 points. That’s nearly double the average score gain compared to students who don’t use our free test prep. Start studying today! http://khan.co/SATStudyonKA | Khan Academy
1:39
We’re excited to announce that studying for the SAT for 20 hours on Khan Academy’s free Official SAT Practice is associated with an average score gain of 115 points. That’s nearly double the average score gain compared to students who don’t use our free test prep. Start studying today! http://khan.co/SATStudyonKA | Khan Academy
FacebookKhan Academy
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"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
0:23
"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
FacebookKhan Academy
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Khan Academy Science
Quantum numbers | Electronic structure of atoms | Chemistry | Khan Academy
12:00
Quantum numbers | Electronic structure of atoms | Chemistry | Khan Academy
YouTubeKhan Academy Organic
已浏览 93.4万 次2014年6月27日
Introduction to electrolysis | Redox reactions and electrochemistry | Chemistry | Khan Academy
6:55
Introduction to electrolysis | Redox reactions and electrochemistry | Chemistry | Khan Academy
YouTubeKhan Academy Organic
已浏览 42.5万 次2015年1月2日
Introduction to chemistry | Atoms, compounds, and ions | Chemistry | Khan Academy
7:45
Introduction to chemistry | Atoms, compounds, and ions | Chemistry | Khan Academy
YouTubeKhan Academy
已浏览 252.1万 次2016年7月18日
5K views · 243 reactions | We have an opportunity to jump start new and better ways for students to learn, empower teachers with new tools to supercharge learning, and bring even more high-quality resources to even more learners. As a nonprofit, we’re able to do this thanks to donations from people like YOU.  Every gift now will keep Khan Academy thriving for years to come. khan.co/SupportKhanAcademy | Khan Academy | Facebook
1:15
5K views · 243 reactions | We have an opportunity to jump start new a…
已浏览 5081 次2 周前
FacebookKhan Academy
We’re excited to announce that studying for the SAT for 20 hours on Khan Academy’s free Official SAT Practice is associated with an average score gain of 115 points. That’s nearly double the average score gain compared to students who don’t use our free test prep. Start studying today! http://khan.co/SATStudyonKA | Khan Academy
1:39
We’re excited to announce that studying for the SAT for 20 hours …
已浏览 8.6万 次2017年5月8日
FacebookKhan Academy
"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
0:23
"It's amazing, and it's free. It's free!" – LaToya Grubbs, middle school t…
已浏览 6.2万 次2019年2月27日
FacebookKhan Academy
15K views · 137 reactions | "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 | Facebook
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15K views · 137 reactions | "One of the tools that I choose to use beca…
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FacebookKhan Academy
8.1K views · 231 reactions | Keep your kids learning over the holidays with Khan Academy Kids! ☃️ Our free educational program has 1000's of learning activities for children ages 2-6, including new winter-themed reading, math and coloring pages for the winter break! ❄️ iOS: khan.co/KKidsWinteriOS ❄️ Android: khan.co/KKidsWinterGP ❄️ Amazon: khan.co/KKidsWinterAM | Khan Academy | Facebook
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8.1K views · 231 reactions | Keep your kids learning over the holida…
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FacebookKhan Academy
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
bluestacks.com
13K views · 82 reactions | Looking for ways to get students thinking like scientists? 離 Our free, ready-to-use science activities, supported by the Adobe Foundation, our official creativity partner, help learners explore physics and chemistry with real-world applications. No complicated setup—just engaging, interactive learning!  Download your free science activities now: https://brnw.ch/21wRue8 | Khan Academy | Facebook
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13K views · 82 reactions | Looking for ways to get students thinking l…
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FacebookKhan Academy
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Combining multiple joins | Computer Programming | Khan Ac…
已浏览 2.8万 次2015年5月11日
YouTubeKhan Academy Computing
Java Programming Full Course For 2023 | Java For Beginners | Funda…
已浏览 1.4万 次2023年8月24日
YouTubeSimplilearn
Challenge Lined Paper Khan Academy
已浏览 2.5万 次2020年3月17日
YouTubeDarknightcerb
9:49
Introduction to Logarithms
已浏览 231.6万 次2007年5月17日
YouTubeKhan Academy
1:44
Introducing: Khan Academy Kids!
已浏览 17.2万 次2019年1月25日
YouTubeKhan Academy
7:06
Java Programming Tutorial - 3 - Downloading Eclipse
已浏览 219.2万 次2009年5月2日
YouTubethenewboston
1:21
Challenge Your First Button Khan Academy
已浏览 2.8万 次2020年2月11日
YouTubeDarknightcerb
10:05
Introduction to logarithm properties (part 2) | Logarithms | Algebra II | …
已浏览 80.3万 次2007年11月15日
YouTubeKhan Academy
0:29
Introduction to Khan Academy Kids
已浏览 130.1万 次2020年3月2日
YouTubeKhan Academy
49:47
Lecture 1 | Programming Methodology (Stanford)
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YouTubeStanford
4:59
HOW TO GET ALL KHAN ACADEMY QUESTIONS CORRECT!!! STILL W…
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YouTubeTricks and V-games
48:20
Lecture 2 | Programming Methodology (Stanford)
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YouTubeStanford
2:48
Get Started with Khan Academy Kids
已浏览 19.9万 次2020年4月13日
YouTubeKhan Academy Kids
3:52
Intro to Variables | Computer Programming | Khan Academy
已浏览 13.4万 次2014年5月13日
YouTubeKhan Academy Computing
11:59:59
Java Full Course for free ☕
已浏览 1327.7万 次2020年11月9日
YouTubeBro Code
3:50
Incrementing shortcuts | Computer Programming | Khan Academy
已浏览 9.1万 次2015年10月30日
YouTubeKhan Academy Computing
4:00
Readable Code | Computer Programming | Khan Academy
已浏览 1.9万 次2014年5月13日
YouTubeKhan Academy Computing
2:05
Using the Khan Academy Kids Library
已浏览 19.5万 次2020年4月14日
YouTubeKhan Academy Kids
6:03
Making animations | Computer Programming | Khan Academy
已浏览 20万 次2015年10月30日
YouTubeKhan Academy Computing
10:43
Electric power | Circuits | Physics | Khan Academy
已浏览 17.3万 次2016年7月29日
YouTubeKhan Academy Physics
2:47
Learning to Code For Free at Khan Academy
已浏览 4.6万 次2014年1月29日
YouTubeThe Wall Street Journal
5:36
Online Learning for Free - Khan Academy Windows 10 App
已浏览 2876 次2015年9月14日
YouTubeChris' Tutorials
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