(Galileo) is a Black Hole badge. To earn it, the user has to become a content creator who records 3000 videos on Khan Academy. Because of the low demand for this position, it is impossible for most members to acquire the badge. This badge can be found he
Thanks for your interest in Khan Kids! Our app has content through 2nd grade. The Khan Academy site at https://www.khanacademy.org/ has lessons for 3rd grade and above. 昵称总有重复都有人用,23/09/2022 It’s amazing and really appreciate the developers ...
Khan Academy Wiki Algebra basics Algebra I Geometry Algebra II Trigonometry Probability and statistics Precalculus Differential calculus Integral calculus 2,151 pages Explore Math Missions in:Energy Point badges,Black Hole badges,Badges without energy points,...