Answer:
I would convince my teacher to change my grade by telling him/her that I've truly tried my best in making the project that I've spent all my money on it and I haven't gotten any wink of sleep the night before just to finish it. I'd also tell him that I've been really focused on finishing the project for the entire month even though I was diagnosed with an illness.
Explanation:
Convincing your teacher by using "pathos" means that you have to convince him in an emotional way. This will evoke his feelings, specifically the feeling of having "pity" for you. This means that your story will have to be convincing, so your teacher will be persuaded in changing you grade.
