Generally all kind of dress are acceptable for students. However, for women very provocative (short skirt, deep neckline) clothing would be perceived as impolite and improper.
Teaching methods depend on the course. Lectures are very common and group work is as well.
Grades at the university level use a numeric system from 2 to 5, with 5 being the highest and 3 the pass/fail level. Grades are given in increment of 0.5.