by Guest User - Wednesday, 3 October 2007, 04:35 PM
i think the best is to start from the begining, pay attention and so on. if you don't understand something from the previous level, as well go on to the next. then, after a while, go back to the things you forgot or didn't understand. and no matter what your knowlege is, they can always explain something very important in the first lesson.
by Guest User - Wednesday, 3 October 2007, 04:43 PM
i don't know everything before passing to the next level, but i always come back to firm my knowlege. after, it just get's more complicated and they count on you to know everything form previous lessons.