"Use the environment to engage your students in learning – both outside and indoors – in urban, suburban, or rural settings. Project Learning Tree's multi-disciplinary activities are designed to develop students’ critical thinking, problem-solving, and decision-making skills. PLT teaches students how to think, not what to think about the environment. Our hands-on activities make teaching and learning fun! Lesson plans are flexible and can be easily incorporated into existing curriculum or nonformal education programs. The activities are inquiry-based with an emphasis on STEM, and are correlated to state and national academic standards. Independent evaluators determined PLT increases students’ knowledge, reasoning, and academic skills. Join the 750,000 educators across the country who use PLT’s award-winning materials with their students." -- plt.org

As winter melts into spring, the frozen earth turns into magnificent mud.

Educator's guide for water science, conservation, and other activities.