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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
Basic addition | Addition and subtraction | Arithmetic | Khan Academy
7:43
Basic addition | Addition and subtraction | Arithmetic | Khan Academy
YouTubeKhan Academy
已浏览 351.5万 次2007年3月10日
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 285万 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 270.5万 次2010年9月15日
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17K views · 387 reactions | Ever heard (or felt) “I’m just not a math person”? Try practicing on Khan Academy: instant feedback, no judgement, a variety of questions, and hints along the way. Give it a try!  khan.co/mathonkhan | Khan Academy | Facebook
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17K views · 387 reactions | Ever heard (or felt) “I’m just not a math person”? Try practicing on Khan Academy: instant feedback, no judgement, a variety of questions, and hints along the way. Give it a try!  khan.co/mathonkhan | Khan Academy | Facebook
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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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What are the practical next steps for teachers and students to get ready for the next school year? How can teachers identify and help students address unfinished learning? On the next Khan Academy Ed Talks, NWEA professional learning content designer Fenesha Hubbard joins Kristen DiCerbo on Thursday, September 2 at 12:30 pm PT/ 3:30 pm ET to discuss the latest research on student growth trends. For more information visit: keeplearning.khanacademy.org Khan Academy is a nonprofit with a mission to
30:33
What are the practical next steps for teachers and students to get ready for the next school year? How can teachers identify and help students address unfinished learning? On the next Khan Academy Ed Talks, NWEA professional learning content designer Fenesha Hubbard joins Kristen DiCerbo on Thursday, September 2 at 12:30 pm PT/ 3:30 pm ET to discuss the latest research on student growth trends. For more information visit: keeplearning.khanacademy.org Khan Academy is a nonprofit with a mission to
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已浏览 4392 次2021年9月2日
Khan Academy Science
Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan Academy
13:09
Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan Academy
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已浏览 420.9万 次2011年8月1日
Cell parts and their functions | Cells and organisms | Middle school biology | Khan Academy
4:14
Cell parts and their functions | Cells and organisms | Middle school biology | Khan Academy
YouTubeKhan Academy
已浏览 11.4万 次2022年2月28日
Intro to acids and bases | Chemistry | Khan Academy
12:13
Intro to acids and bases | Chemistry | Khan Academy
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17K views · 387 reactions | Ever heard (or felt) “I’m just not a math person”? Try practicing on Khan Academy: instant feedback, no judgement, a variety of questions, and hints along the way. Give it a try!  khan.co/mathonkhan | Khan Academy | Facebook
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17K views · 387 reactions | Ever heard (or felt) “I’m just not a math …
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FacebookKhan Academy
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...
已浏览 8.6万 次2 周前
FacebookKhan Academy
What are the practical next steps for teachers and students to get ready for the next school year? How can teachers identify and help students address unfinished learning? On the next Khan Academy Ed Talks, NWEA professional learning content designer Fenesha Hubbard joins Kristen DiCerbo on Thursday, September 2 at 12:30 pm PT/ 3:30 pm ET to discuss the latest research on student growth trends. For more information visit: keeplearning.khanacademy.org Khan Academy is a nonprofit with a mission to
30:33
What are the practical next steps for teachers and students to get read…
已浏览 4392 次2021年9月2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
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"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
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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…
已浏览 1.6万 次2019年2月27日
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283 reactions · 57 shares | Calling all teachers! 戮Khan Academy offers K-14 standards-aligned content in math, science, history, art and more. We have 50,000+ practice problems for remediation and enrichment. Free for teachers and students! | Khan Academy | Facebook
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283 reactions · 57 shares | Calling all teachers! 戮Khan Academy offer…
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2.2K views · 908 reactions | 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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2.2K views · 908 reactions | Empower students with creative t…
已浏览 18.6万 次3 周前
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Download & Play Khan Academy Kids: Learning! on PC & Mac (Em…
2021年10月4日
bluestacks.com
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Adults, kids learning with Khan Academy | CNN
2012年5月31日
CNN
2:22
Challenge Lined Paper Khan Academy
已浏览 2.5万 次2020年3月17日
YouTubeDarknightcerb
2:34
Welcome to Natural Simulations | Computer programming | Khan Ac…
已浏览 10.1万 次2014年5月9日
YouTubeKhan Academy Computing
Animating visibility with jQuery | Computer Programming | Khan Ac…
已浏览 6358 次2015年9月28日
YouTubeKhan Academy Computing
2:13
The Khan Academy
已浏览 70.9万 次2009年12月14日
YouTubeKhan Academy
2:09
Challenge Smarter Button Khan Academy
已浏览 3.3万 次2020年2月18日
YouTubeDarknightcerb
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Introduction to Logarithms
已浏览 231.1万 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
1:39
Challenge Waving Snowman Khan Academy
已浏览 1.3万 次2019年10月15日
YouTubeDarknightcerb
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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YouTubeFranco Cardenas
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Introduction to Khan Academy Kids
已浏览 128.4万 次2020年3月2日
YouTubeKhan Academy
48:20
Lecture 2 | Programming Methodology (Stanford)
已浏览 107万 次2008年7月3日
YouTubeStanford
5:05
Function Parameters | Computer Programming | Khan Academy
已浏览 4.7万 次2013年11月25日
YouTubeKhan Academy Computing
6:20:29
Java Tutorial | Learn Java programming | Full Java Program…
已浏览 40.6万 次2017年5月9日
YouTubeProgrammingKnowledge
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Teacher Tools on Khan Academy Kids!
已浏览 2.5万 次2020年4月27日
YouTubeKhan Academy Kids
2:48
Get Started with Khan Academy Kids
已浏览 18.3万 次2020年4月13日
YouTubeKhan Academy Kids
3:52
Intro to Variables | Computer Programming | Khan Academy
已浏览 13.1万 次2014年5月13日
YouTubeKhan Academy Computing
3:50
Incrementing shortcuts | Computer Programming | Khan Academy
已浏览 8.9万 次2015年10月30日
YouTubeKhan Academy Computing
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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 18万 次2020年4月14日
YouTubeKhan Academy Kids
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