What's up with math?

I used to be good at math. I've only gotten a "B" once in the subject. But I think I would totally flunk these days. I was trying to help Nathan with his math the other day, and I had to have him go to Dylan to get help. Not Dylan, his father, but Dylan his big brother! They were asking for something that I'm not even sure I've ever heard of! I can't even remember what it was! I need to go back to school just to help with their homework. Good thing he's got a bigger brother.