Register with GEF for FREE to enjoy these great benefits! 

    • member only contests and raffles

    • sustainability program news and updates

    • significant discounts at GEF Institute

Note: If you have problems registering, contact This email address is being protected from spambots. You need JavaScript enabled to view it.


Taking a GEF Institute Course? Login by clicking here.






Join Us

Sign Up for National Green Week!
Please note: Your privacy is very important to GEF. We do not share or sell any of your data.  It is with the sole purpose of providing you with relevant information that GEF will contact you.

Welcome to the Sustainability Lesson Clearinghouse

Here, you can find free sustainability lessons to use in your class and upload your own lessons to share. Be sure to rate the lessons you use and leave comments for your colleagues!

All of GEF's lessons and programs are offered at no cost.  Become a member to support GEF and enjoy member only benefits! 
Join button_03

Professional Development

GEFinstitute LOGO_WEB GEF Institute offers affordable, online sustainability courses eligible for professional development or academic credit.
Give your resume a boost!

Sponsor a Teacher

Support educators in your community by helping them earn a Certificate in Sustainability or take an online course. Find out more about sponsorship!
Sustainability Lesson Clearinghouse

The Planet Janitor© Coloring Book

Lesson Description:
This is a coloring book with text in english and spanish. It focuses on the environmental aspects of energy production and use but also has pictures on solar energy.
Lesson Type:
  • Project

Sustainability Topic:
  • Energy
  • Waste Reduction

GEF Program Category:
  • Waste Reduction Challenge
  • Green Energy Challenge

Time Needed:
For classroom use as time permits
Standards Addressed:
  • National standards: k-4
    • pri-f: 4.a. environments are the space, conditions, and factors that affect an individual’s and a population’s ability to survive and their quality of life.
    • pri-f: 4.b. changes in environments can be natural or influenced by humans. some changes are good, some are bad, and some are neither good nor bad.
    • pri-f: 4.c. pollution is a change in the environment that can influence the health, survival, or activities of organisms, including humans.
    • pri-f: 4.d. some environmental changes occur slowly, and others occur rapidly.

Materials Needed:

School or Group:
Energy Education and Workforce Development
Contact Email:
Located in: Language Arts

The Sustainability Lesson Clearinghouse is brought to you in partnership with

Center for Green Schools