WWF has developed many resources for teachers centered around world sustainability. There are lesson plans, supplemental activities, informational videos, and online games.
Organization: World Wildlife Fund
For 60 years, WWF has worked to help people and nature thrive. As the world’s leading conservation organization, WWF works in nearly 100 countries. At every level, they collaborate with people around the world to develop and deliver innovative solutions that protect communities, wildlife, and the places in which they live (Source).