We’re a nonprofit with the mission to provide a free, world-class education for anyone, anywhere. LearnersTeachersParents Pre-K through grade 2 (Khan Kids) Early math review 2nd grade 3rd grade 4th grade 5th grade 6th grade 7th grade ...
译自可汗学院Class 12 Physics (India) 的半导体课程 Lesson 1:固体能带理论第4节课:导体、绝缘体和半导体 https://www.khanacademy.org/science 为什么某些物体表现得像导体,而另一些则不然?这似乎是一个非常简单的问题,但事实并非如此。要真正回答这个问题,我们需要更深入地研究固体的电子能级。在本视频中,我们...
12 正向偏置Forward biasing a PN junction_ Physics Khan Academy 438 -- 1:11:19 App KhanAcademy Physics 合集1 (更新中) 2.9万 163 11:31 App 21 晶体管的工作原理Transistor working Class 12 (India) Physics Khan Academy 2270 1 24:04 App 【双语字幕】糖酵解的步骤 _ 细胞呼吸 _ 生化 _ Khan...
Khan Academy Working to make a free, world-class education available for anyone, anywhere.638 followers Mountain View, CA https://www.khanacademy.org/ Overview Repositories 462 Projects Packages People 42 Popular repositories Loading aphrodite Public Framework-agnostic CSS-in-JS with support...
Khan Academy 1 (KA) is an online learning system of videos and exercises that is freely available and widely used. In this study, 131 students in a mathematics education class were split into two groups. Both groups followed normal instruction, but the treatment group was introduced to KA and...
Khan Academy Working to make a free, world-class education available for anyone, anywhere.570 followers Mountain View, CA https://www.khanacademy.org/ Overview Repositories 461 Projects Packages People 44 Popular repositories Loading aphrodite Public Framework-agnostic CSS-in-JS with support...
Youtube:http://www.youtube.com/user/khanacademy#p/p Visithttp://www.khanacademy.orgfor access to our full virtual school, including user-paced practice exercises 忙完了最近手头很乱的事情之后我想我会注册一个youtube账号,然后给Khan发封感谢信 无论他看到看不到。NGO需要人们的支持作为他们继续前进...
Khan Academy is a 501(c)(3) nonprofit organization, with the mission of providing a free, world-class education for anyone, anywhere. What’s New Aug 13, 2024 Version 8.2.0 ∙ Bug fixes and performance improvements. App Privacy
1 year of experience Detailed training videos Great practice questions Detailed analysis of problems and answers Likelihood to Recommend Khan academy is well suited as a homeschooling aid for students. Khan Academy serves as a cost effective solution for parents to help their children learn concepts ...
Always free of every student.for learners and teachers.For teachers-Improve your classroom and engage(吸引) every student.We empower teachers to support their entire class. 90% of US teachers who have used Khan Academy have found us helpful.For learners and students-You can learn anything.Build...