I swear this program was actually invented by Satan. It has the least user friendly site on the F$%*& planet. It teaches you nothing. While using ALEKS I had to use khan academy videos to actually teach me what I am doing. AND ITS NOT EVEN FREE. Literally khan academy but paid and way worse. Ok but for real don't waste your money. It is incredibly laggy. The explanations are about as vague as vague can get. It is either 1st grade level problems or college calculus i swear this program makes me want to put a bullet through my skull and end it all.