You will find free links and addresses to free stuff for teachers on this page. Look for weekly updates.
Free from the Environmental Protection Agency

You will explore animals and plants that are on the endangered
species list in entertaining, fun, and educational coloring books
and exercises.  A wonderful site from the Environmental Protection 
Agency.  By the way did you know that a Bald Eagle, our national
symbol, has eyesight so good that it can see a fish from more than 
a mile away?  You will learn that and lots of other things on
this site at
http://www.nbs.gov/features/kidscorner/index.html

Watch for more freebies links and addresses on this page for
teachers, group leaders, educational curators, parents and others
working with children.