Khan is said to teach math, they do give math problems and videos yet they don't explain it that well, and its not "fun" or in other words, we kids don't really want to play on it due to it being just math and nothing else, no fun! I would not recommend this for people who like fun in education but I would for those who just want to study study study and have there mind just set on the one task: master this skill. 3/5,1 point for encouragement and the other point for explaining.