I'm a Khan Academy user who is autistic but proud. Here is some content that I would like Khan Academy to add to the website:
Mathematics: Polar coordinates(e.g., converting rectangular to polar, and vice versa)
Science/engineering: Grades K-8, Earth Science as a separate course, and information about other animals, such as arthropods, birds, reptiles, etc.
Arts/humanities: Elaboration on the music topic, geography
That's all I have to say! Thank you for reading!