I know I learned the things I was supposed to learn in school. I got straight A's after all! But, by the time my kids got to 5th grade math, I was struggling to remember how it all worked.
Seriously, how many parents actually remember Adding fractions or what the Formula for volume is? How about Graphing linear equations? Did I ever even learn to graph them? It makes it really hard to help with the homework, that's for sure. Chime in here if you remember all the stuff you learned in school. For the rest, thankfully there's online tutoring.
TutorVista is the leading online tutoring company in the world. For $99.99/month you can get an unlimited tutoring package. That includes all subjects, not just math. Students can get personalized one on one tutoring any time they want, 24 hours a day. I've never checked into actual in-person tutoring, but I'm pretty sure it costs more, and it's not available any time your student needs help with his Algebra 2 homework. They offer a free first time trial, so you can check it out before you decide to use it. Tutoring is available for students K-12 and college.
