How are school grades determined at different levels of education in your country (e.g., test, quizzes, reports, participation, etc.)? How are grades listed on report cards? In the USA, letters are often used to indicate performance (A, A-, B+, etc.).
HELPFUL TIP: Many students in the US take the SAT and/or the ACT tests as a part of gaining entrance to colleges and universities. Try taking such tests several times so you get a feel for how they are written if the school are considering require such tests.
What was the hardest class you took in high school? What made the class difficult? What are the keys to passing exams? In your country, what percentage do you need to pass a class? Do teachers allow you to retake tests if you fail them because of poor performance or even cheating?
Please write your opinions on a similar topic at Randall's ESL BlogHERE.
"hand in" = turn in or give an assignment to a teacher
"Don't forget to hand in your homework at the end of class."
"at the end of your rope" = no longer have the ability or patience to do something
"To be honest, I'm at the end of my rope. I've told these students repeatedly not to copy their assignments, but they don't listen. I guess I'll have to fail them."