Due to No Child Left Behind you need to get an AAS in Paraeducation. You can get a certificate for the state you live in, but that is being phased out in a lot of areas.
Many community colleges now offer the Paraeducaton degree and they are fun and interesting classes. There is also a large amount of financial aid for this area.
While I was in school for this, I worked as an after school instructor. This is a great way to get to know the school staff and how many things are handled.