Some more than others, depends on their situation. You must be aware of ports, fatigued kids on chemo, balance issues etc. Get a rundown from their parents as to the type of disease, stage, location etc. One thing for sure you don't have to worry about discipline. These kids are dedicated. The lable of warrior is thrown around in our society to cheaply but these kids are the very definition of warrior. I had these kids for two years and never had a parent complain or tell me how to teach. Never had a kid complain either, this is a slice of heaven to them compaired with what they are and have gone through. Can't say the same for my mainsteram students.