Chinese Math

My math needs improvement! My dad is too lazy to teach me (he is really good at math :3) so he registered an online Chinese math course for me. Costed us 400 RMB but it's not really a lot in dollars (about 60 or 65 ish dollars I guess?) Well anyways, he also printed out the textbook booklet and question solutions. I am listening to the online course right now. I like how a little window always pop up when the teacher is done with one section so that I can check my understanding by doing the little question in the window. :3