i live in turkey and i want to study uni in Germany and my notes wasn't so cool in high school , so first i will have a language course and after that i want to study uni there , so what do i need to do for studying there ?
Yes! Take your birth, passport too. Some classes you took in USA, do not carry over to Germany. So, be prepare to take extra classes and ppppplllleeeaaaseee....learn their way of living. You MUST know Germany's history, and must pas an entrance exam, to prove how well you know the three A's. Math is a major problem for US students, Germany uses the "meteoric" system. So, get busy. Good Luck!
Do you mean University of California at Berkeley?  Do you mean get in as an undergraduate majoring in Mathematics?  Or do you mean get in the graduate school?\n\n  If undergraduate, the Math department has nothing to say regarding your admission to the school.  Without the great grades, get great letters of recommendation from people with a degree or two from UCB.  What makes you different?  What makes you stand out?  What will you bring to the student body that few others will?  Answer those questions in your letter and essay.  And be likable at the interview.\n\n   If graduate school, without a great GRE and great grades, you frankly don't have much chance.  But a couple letters from guys with PhDs in Math from Berkeley who'll say you're great will help a lot.