Some of my earliest memories are of wildlife in the woods where we played. We created games to see who could identify the most species. So I read books about animals and trees and developed an interest in science at a young age.

Some of my earliest memories are seeing the birds and other wildlife that lived in the woods where we played.

—Dennis Chestnut, Groundwork Anacostia, Washington, DC

The Tree Tenders class gave me knowledge, conviction, and resources. Now my goal is to plant more trees each year than I did the year before.

The Tree Tenders class gave me knowledge, conviction, and resources. Now my goal is to plant more trees each year...

—William Lighter, Collingdale, Pennsylvania

It's all about awareness, about how you walk into a forest and know that it is in excellent ecological condition and that it's a special place.

It's all about awareness, about how you walk into a forest and know that it is in excellent ecological condition ... a special place.

—Tara Luna, East Glacier, Montana

Learn

Explore a broad variety of hands-on activities on howtosmile.org to learn more about forests and trees. You can use these activities in classrooms, with community groups, or on your own.

The Arbor Day Foundation's What Tree Is That? and the mobile app LeafSnap (currently available for iPhone and iPad) can help with basic tree identification.

And if you really want to get involved, look for a local tree group. Many offer classes and opportunities for active learning.