How can I convince my mom to let me stay home from school?

Be straight up with your mom. Tell her your ankle is twisted/sprained, whatever it is. She can write you a note for gym, and they shouldn't be able to make you participate if you have a parent signature.

Your mom can even send an email. You shouldn't miss a whole school day because of one class, especially because this ankle injury can/will last for several days.

Tell your mom the truth. You should have gone right to the school nurse after you were hurt. If your ankle hurts bad enough have your mom take you to the doctor.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.