"This black t-shirt, which says “Silence = Death” with a pink triangle, symbolizes the struggle against AIDS.
History Explorer Results (3)
Related Books (1)
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
4/22/2010
The Environmental Movement
This button depicts the ecology symbol, a small letter “e” inside the larger letter “O,” the letters standing for “environment” and “organism.” Cartoonist Ron Cobb invented the symbol in 1969. The ecology symbol appeared in a g
Grade Range:
K-12
Resource Type(s):
Reference Materials
Date Posted:
9/22/2009
Students and teachers can deepen their understanding of the challenge of climate change through this archived online conference. An excellent professional development resource, the homepage for the online conference provides the conference schedule and speakers, as well as gen
Grade Range:
8-12
Resource Type(s):
Reference Materials
Date Posted:
7/13/2012
In this post, students will learn about the concept of eco-cities (cities designed to be in balance with nature) and their impact on the sustainability movement. Written by Art Molella, Jerome and Dorothy Lemelson Director of the Lemelson Center for the Study of Invention and Innovation, thi
