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Intro to JS: Drawing & Animation | Khan Academy
Have you ever wondered what it takes to make drawings come to life? Well, we have to speak to our computer in a special language. In this unit, we learn how to use the programming language …
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可汗学院提供代数函数相关的课程和练习，帮助学生掌握代数知识。
What is a function? (video) | Functions | Khan Academy
Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.
Khan Academy | Khan Academy
Explora funciones algebraicas con lecciones y ejercicios gratuitos en Khan Academy. Mejora tus habilidades matemáticas de manera interactiva y accesible.
Cell parts and functions (article) | Khan Academy
Review your understanding of cell parts and functions in this free article aligned to NGSS standards.
可汗学院 | 免费在线课程, 讲解以及练习
教师 使你的教室与众不同，并激发学生的积极性。 我们全方位的课程管理系统可供教师们来管理及帮助学生的学习。使用过可汗学院课程管理系统的美国教师中有 90% 的教师表示该系统对他们有帮助。
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Khan Academy | Free Online Courses, Lessons & Practice
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 …
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