I am a special education teacher. I work with para professionals to provide a learning environment to children with special needs. 
Wow that's so cool, what made you decide to go into that field?
I have a brother with down syndrome, and it's always something I've dreamed of doing. Without special education, students with special needs wouldn't get the specialized learning they need.
That's so cool, what exactly is down syndrome?
Down syndrome is a genetic disorder associated with physical growth delays, characteristic facial features and intellectual disability.
Oh wow, what chromosome is affected?
Down syndrome is also know as Trisomy 21 which means there is all or part of a third copy of chromosome 21.