This is not the case. The school administration is not only pleased, but eager, to have America Reads Challenge tutors in the schools. There are certain things that you can do which will help you carve out your place in the school where you work and be accepted. The general rule you should follow is to pay attention to principal and teachers and take your lead from them. Certain specific related items that should be brought to your attention follow.
Some schools have a written dress code for teachers.
Others do not. Whether your school has one or not, there is almost always an unwritten dress code. This does not mean that you have to purchase a new wardrobe. If your clothing selection is limited, it is certainly acceptable for you to wear the same clothes often. In general, you probably should not wear shorts to your school.