Okay my teacher gave me the grade I got for each part of the class (e.g. test average, class participation etc) and how much each part counted for the final grade, and I did the math and she literally shamelessly cut a point off my grade for no reason. She's done this every quarter I've had her too. Should I say something? I don't want to be petty.
absolutely yes grades are something you don't mess around with
"the version of your poster you bring tomorrow will only need to be a rough draft, i won't be grading that part" = throw together the ugliest poster ever without any effort to make it look good while still having enough information on it