For the text only elements, there are various browser plugins that will read aloud any website (including Khan Academy questions)

The chromebook didn't allow for the suggested software extensions nor does the setting for text-to-speech settings work within the Khan website or app (unless I am missing something).  My son is 4.5 and hasn't learned to read but can answer the math questions if I read the directions and question aloud to him.  My 7 year old daughter (who can read) uses the read aloud feature in IXL every time (which now makes sense as I am now homeschooling and realizing she is an auditory learner).

Thanks everyone for sharing your thoughts on adding read-aloud capabilities to the platform! This feedback will be registered here, and the appropriate team will be able to review not only this feature but other sections that might need a boost.

As we grow and expand, we’re continuing to add new features to offer a better education at Khan Academy. Investing more heavily in our interface is actually one of our major initiatives.

Thank you for being part of our community!