Cornell University
Cornell University: Astronomy: Eclipses
This site from the Astronomy Department of Cornell University provides brief introduction to both solar and lunar eclipses. Links are provided for pictures and charts of the eclipses, and this is a good site to check out on the subject.
Annenberg Foundation
Annenberg Learner: Teachers' Lab: A Private Universe
This section is dedicated to educators to become expert instructors on topics like: distance between Earth, the Sun, and the moon, the phases of the moon, and reason for the seasons. Site includes information about how to address...