Hi there, it's not a stupid question at all. SNA's are employed by the Department of Education. Once a child is assesed, it is then decided if they require an SNA in the classroom. An SNA's duties all depend on the needs the child has and work from there. The most important thing overall is to make sure that a child with special needs is made feel equal to rest of their peers and is not excluded in the classroom or in day to day activities.