Project Learning Tree

Treemendous Science! e-unit for grades K-2

Project Learning Tree is excited to expand our curriculum and professional development opportunities to include Treemendous Science! for grades K-2. This self-contained unit of instruction is fully online, making it easy for teachers to access and use.

Treemendsous Science! E-unit for grades K-2

Whether you regularly use the outdoors as a classroom or tend to hesitate every time you take your class outside, this unit is an invitation to increase the quantity and quality of your K-2 learners’ contact with nature and trees.  

Treemendous Science! students will explore, experience, observe, and collect tree data to develop understandings about how trees grow, the roles trees play in ecological systems, and the ways in which trees and humans interact.  

Hands-On Activities

Get students excited about science through hands-on activities, rather than simply memorizing facts.

Meets NGSS Standards

The e-units are constructed around targeted performance expectations of the Next Generation Science Standards (NGSS). 

Flexible Curriculum

The curriculum is organized around three levels geared to children’s different stages of development.

Connections to academic standards

Project Learning Tree ’s e-units feature comprehensive, interactive connections to academic standards: Next Generation Science Standards (NGSS), Common Core State Standards for English Language Arts and Math, and the C3 Framework for Social Studies.

Get access to the Treemendous Science! e-unit

Receive access to this new supplemental curriculum in conjunction with professional development. Attend an in-person professional development workshop in your state, or purchase an online training with the accompanying e-unit for $40 from shop.plt.org.

Each e-unit contains:

  •  Detailed step-by-step lesson plans
  •  Downloadable student pages to guide learning
  •  A range of assessment tools, including pre- and post-assessments and evaluation rubrics
  •  Easy-to-understand teacher background information
  •  Comprehensive, interactive connections to academic standards
  •  A self-paced online workshop with video demonstrations of the activities and lesson planning exercises
  •  Suggestions for fiction and non-fiction books to enhance the activities
  •  Links to websites, videos, and other supplementary resources 


Teachers who subscribe to an e-unit from Project Learning Tree will have access to quality learning activities any time, anywhere.

The Treemendous Science! e-unit explores these essential questions: 

  •   What patterns can we see in trees over time?
  •   How do humans and trees interact?
  •   What role do trees play in ecosystems?
  •   What can we learn about trees and their habitats by closely observing them?
  •  How are habitats alike and different? The overarching goal of this Treemendous Science! unit is for students to use prior experiences to reflect on patterns found in the natural world.
Treemendsous Science! E-unit for grades K-2

What teachers are saying

“The lessons are laid out well and materials are easy to attain. I have seen the excitement of so many children during these activities. Students are full wonder and amazement about all that is going on outside their door.”

--Dawn Hammon

Teacher in Indiana

“It was hands-on, easy to follow, and can be easily manipulated to fit a teacher's time, materials, and teaching preferences.”

--Heather Tate 

Teacher in North Carolina

“It's easy to do, not a huge amount of preparation, and can be done even in an urban environment.” 

--Laura Baker 

Teacher in Indiana

Get instant access to the Treemendous Science! e-unit for grades K-2

About Project Learning Tree

Project Learning Tree helps develop students’ awareness, knowledge, and appreciation of the environment, builds their skills and ability to make informed decisions, and encourages them to take personal responsibility for sustaining the environment and our quality of life that depends on it. 

For the last 40 years, Project Learning Tree has trained 700,000 educators to help students learn how to think, not what to think about complex environmental issues.