I HIGHLY HIGHLY recommend this app if you want to brush up on math from any level. The math courses have really helped me understand the high school math I struggled with. One small problem I found is that moving the dots to the accurate position on a co-ordinate plane is too awkward on a touch screen.
So good in fact, that I wish I had something like this during my years at school. You young people don't know how lucky you are, to have access to something like this. Nice app you've got going here mate. I hope you can include more topics to study in the near future. Keep it up. Maybe add some simulation exercises.
By the way, I found this very helpful. It is NOT A GAME! It's used for help in educational things and helps us understand a concept better.
Best learning app Sir please include Mechanical engineering content also as it helps us alot Thanks alot for making Khan academy
Khan academy is highly useful not only to students but also to everybody who is interested to learn things and to get refreshed in different subjects.
I loved this app & it helps me in my exams also
Bug fixes and improvements.