JSC Education Office Resources Page
http://education.jsc.nasa.gov/Resources.cfm

Volunteer Resource Manual
http://education.jsc.nasa.gov/volunteer/training.pdf

Speaker support
http://pao.jsc.nasa.gov/prodserv/speaker_support.html

The NASA portal
http://www.nasa.gov/

Contact your local Education Resource Center
http://www.nasa.gov/audience/foreducators/k-4/contacts/ERCN_State_Listing.html