Hi there!

Thank you for sharing your thoughts on new advanced mathematics sections. As we grow and expand, we’re continuing to add new content to offer a better education at Khan Academy. Investing more heavily in the content team is actually one of our major initiatives.

Thank you for being part of our community and please take a look at our article that explains Khan Academy's Content Principles.

If there's anything else I can do for you, please let me know!

Warm regards,

Alex