Why?
I am doing my practices and I get to the mastery challenge Im get up 11% then the next day I do the same thing I practice then I do the mastery challenge and I go down...WHY?! I was at 11% now Im DOWN to 10% there is no logic behind that... Khan is supposed to help you practice and get better and up but it makes me go down? Why?!
Percentage lowered about
Khan Academy