Khan Academy - YouTube
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, chemistry, physics, history, economics, finance, grammar, and many other topics.
概览
收录于
2026年3月18日
学科与领域
math · number-theory-arithmetic
年级范围
幼儿园–十二年级（高四）
页面类型
Video
关键词
"free online classes" "math tutorials" "science tutorials" "online education" "video classes" "arts and humanities videos" "online lessons" "online learning"
简介
Khan Academy Overview
- Mission: Providing a free, world-class education for anyone, anywhere.
- Organization Type: Nonprofit.
- Educational Resources: Offers interactive practice problems, articles, and instructional videos.
- Target Audience: Students globally.
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