How can we help?

How do I report a mistake or issue with an exercise?

Updated

If a mastery challenge or practice exercise question isn't working correctly, it's best to notify our Khan Academy support team using the Report a problem link in the lower right-hand corner of the problem (see screenshot below).

This allows the engineering team to see exactly which problem you were working on and what steps you took when trying to solve it. 

If the issue isn't specific to that one particular problem, please report a problem in the Help Center and send a request describing the steps you took and provide screenshots if possible.