If there's one thing I can't stand it's a dumb teenager. Their parents consider driving their kids to hockey in an Escalade and buying them a Wii Fit as good parenting. Unfortunately, your job as a parent doesn't end just because Timmy's sugar rush died down and he's not smoking pot yet. It's your job to make your kid the smartest in the class. Unless you live in community-oriented semi-communist tribe, the world is highly competitive and, in order to be successful, your kid needs to every advantage he/she can get. I've seen too many of my classmates in high school flunk certain key classes and it ruined, what would have been, a very promising program in college. That's why you have to start now. There's an site called Brightstorm. It's a full video tutorial system that'll help your flunking teen with all the high school subjects of your choice. It's relatively inexpensive ($49 per course) and, in my opinion, totally worth it. Even now, I'm searching YouTube if they just might have the topic with which I'm having trouble. With Brightstorm there's no risk. Just sit your teen in front of the comp and for half an hour, instead of looking up porn, you kid will learn geometry from a teacher who was born this century, using dynamic illustrations that are much better than the usual drilling and grilling from the textbook.