Veronica, you need to check on the tree nut vs legume thing. Not always a given. Also, apparently, contact with peanut residue can be a problem but most reactions are from actual ingestion. You may want to be sure you keep handwipes in the room. I suspect your school nurse (if you have one) can give you some guidelines and tips for dealing with this. It can't be a first for the school.

http://www.cpnonline.org/CRS/CRS/pa_peanalle_hhg.htm

http://www.foodallergy.org/allergens/peanut.html