These materials make for a great lesson! It's important our students talk about and learn about others not like them, others that have visible or invisible disabilities. There's a lot of misconception out there.
Use these worksheets for some lessons about Down Syndrome. Students will become more aware about the people that don't suffer from Down Syndrome but live and thrive with Down Syndrome.
Video lesson materials for this great video about one such person.
This video from the "More Alike Than Different" campaign is also good to show and discuss in class.
This pdf from the Special Olympics organization has some nice printables and ideas for class lessons.
For general teaching advice and lessons on disabilities - see This Packet.