FREE (or cheap) Resources for Environmental Education

OBIS - has their lesson plans online and they can be sorted by category, by facilities available and by type of activity.

I like their activities because, like Project WILD, they have been tested by teachers over and over until they got it right.

All are in environmental science and all are said to be for grades 6-8 but I've used some of them for High School, too.  You will need a free login but they say they won't share your information.

www.outdoorbiology.com and opens in a new window.

Project WILD is one of the largest conservation and environmental education groups.  So far over 1 million teachers have become WILD-Certified.  The two large books of lessons are free when you get certified and there is no other way to get them.  They are keyed to national standards.  There are activities for grades K-12.  Certification is around $15 and there are workshops throughout the US. 

They also have other projects, such as the WILD about elk, WILD about birds, etc.

www.projectwild.org and opens in a new window.