What do % mean?
90%-100% = A
80%-89% = B
70%-79% =C
60%-69% = D
Below 60% is not passing and you should redo the assignment.
A student's grade comes from 3 categories split equally. So, 33 1/3 % or 1/3 of your grade comes from each of these categories:
Assignments (Includes homework and class work)
Quizzes
Unit test (There are fewer of these and can not be re done.)