Competition (Biological)

Decorative image with the K-8 Guide cover over a forested background.

Explore Your Environment: K-8 Activity Guide

Explore Your Environment: K-8 Activity Guide offers educators a wide variety of engaging, hands-on activities, organized into grade bands, K-2, 3-5, and 6-8 about trees and forests, wildlife, water, climate change, stewardship, and more.

Biodiversity Blitz

Biodiversity Blitz, part of PLT’s themed series for educators, features three grades 3-5 activities that invite learners to investigate species variability in an ecosystem, and how this variability – or biodiversity – helps sustain life on Earth.

PreK-8 Activity Guide Cover

PreK-8 Environmental Education

Charting Diversity. Birds and Worms. Pollution Search. These are some of the 96 hands-on interdisciplinary activities found in Project Learning Tree’s PreK-8 Environmental Education Activity Guide.

Aerial view over homes, streets and suburban community at the edge of picturesque country town surrounded by green pasture and farmland, Stroud, UK. ProPhoto RGB profile for maximum color fidelity and gamut.

Life on the Edge

Students model processes that can lead to species becoming rare or endangered. Then, they become advocates for rare or at-risk species of plants or animals and create “public relations campaigns” on behalf of these species.

Traces of the emerald ash borer on the trunk of a dead ash in Michigan - like the death sentence for the tree, written under the bark; the emerald ash borer (Agrilus planipennis or Agrilus marcopoli) is a non-native invasive insect from Asia; the green beetle, accidentally introduced by overseas shipping containers into the USA, spread from Michigan through the Midwest and threatens to kill most of the ash trees in North America; shallow DOF

Invasive Species

Throughout history, people have intentionally and unintentionally moved plant and animal species to new environments. Some of these species have proved beneficial, but others invade natural habitats, causing environmental and sometimes economic harm.

デザイン素材 Summer Park

Every Tree for Itself

This fun and active modeling simulation reviews the conditions that trees need to live and grow, while also demonstrating that trees must compete to meet their needs.