Places We Live

High school students investigate their own community to understand the environmental, social, and economic impacts of decisions connected to community growth and change.

Forests of the World

High school students conduct research and apply critical thinking skills as they explore how humans around the world interact with and depend upon diverse forests.

GreenSchools Investigations

Engage students in STEM as they investigate their school site, energy use, water, waste and recycling practices.

Cover for the Biodiversity high school curriculum


High school students discuss perspectives about biodiversity and impacts related to decisions about growth and development, energy use and water quality, and human health.


GreenSchools Online Course

Project Learning Tree continues to develop new online professional development opportunities for educators that are carefully designed to create effective learning experiences.