Whether your presentation is written or oral, how you present it could possibly impact the grade you get. If you take the time to make sure your written presentation it is well organised, easy to read, does not contain spelling mistakes and meets all the criteria specified in the rubric then you are well on your way to a good grade. For your oral presentation if you make sure your information is well researched, and you have rehearsed your presentation you are well on your way to a good grade.