Yeah, I'm a semi-ignorant American. What separates me is my willingness to learn about other cultures. ^_^ lol
Anyway, yeah, your year 10 would be basically the equivalent of our Grade 10, or more commonly Sophomore Year in highschool. We have basically the same thing over here, called the HSEE, or High School Exit Exam, in which you take basic aptitude tests in reading, writing, and math, and have to pass them to graduate senior year (grade/year 12). If you fail, you can retake them every semester or so, though they're ridiculously easy and I feel bad for anyone who can't pass them.