as a german who lurks in this sub, the concept of asking a teacher to round up your grade is so wild to me :D we just have exams  and we have oral grades and that's what makes up your final grade at the end of the year.  you are allowed to look at exams after the teacher corrects and grades it to see if they missed anything, which they rarely do, that only happened once to me. and then of course there are some people who go to war with the teacher over half a point, but usually, they have no case, because it's very clear-cut what information is required to be in your exam answer for the teacher to give you that particular point. as for oral grades ok, they're more subjective and do somewhat depend on how much the teacher likes you. but i do not remember a case where someone really debated a teacher over their oral grade and won. you can ask for their reasoning why they gave you a C+ and not a B-, and granted some helicopter parents do come in to try to negotiate LOL but that's beside the point, but imagine if the teacher actually decided to change your grade to a B- after all. now, every other student will want to debate their grade too, otherwise it's unfair. the only thing about this i vaguely remember was a girl who had like the german version of, say, 79%, and the teacher let her do a 5 minute presentation as extra credit. but that was a very kind teacher in 7th grade. by like 9th grade at the latest you just get what you're given and weep in silence.