I was told to use report problems with exercises by clicking on the "Report a problem" link at the bottom of the exercise with the error.
However, that method is a black hole. I've used that method of reporting several times and I never get any idea if the problem is addressed. It should show up in this support site with the other errors that we report here or at least generate an email that shows that it was received.
I understand if there are excessive "problems" reported by STUDENTS using that link that you cannot look into all of them, but an email response could be automated as is the case for requests on this support site and surely you would want to encourage TEACHERS to report errors by at least giving us some sort of response that our concerns have at least been received.
I'm not going to send any more feedback using the link at the bottom of exercises if I can't even see any record of whether the request was received. Even better, it would be encouraging to get some sort of response after requests are looked at (IF they are actually looked at). Khan Academy does a great job of responding to issues when requested through the "Report a Problem" link at the top of the support website and it would be great if we knew that the links with the same wording at the bottom of exercises worked too.
Thanks again for all the great work on a huge, complicated website.