Search educational resources
Try It Free
Search reviewed educational resources by keyword, subject, grade, type, and more
Curriculum Manager (My Resources)
Manage saved and uploaded resources and folders
To Access the Curriculum Manager
Browse Resource Directory
Browse educational resources by subject and topic
Explore curriculum resources by date
Lesson Planning Articles
Timely and inspiring teaching ideas that you can apply in your classroom
Save time lesson planning by exploring our library of educator reviews to over 550,000 open educational resources (OER).
An all-in-one learning object repository and curriculum management platform that combines Lesson Planet’s library of educator-reviews to open educational resources with district materials and district-licensed publisher content.
PD Learning Network
A comprehensive online edtech PD solution for schools and districts. Educators earn digital badges that certify knowledge, skill, and experience.
User Guide & FAQ
Try It Free
Refine Your Results
What Members Say
I can find great worksheets and quizzes for beginning teachers. It is almost impossible to come up with everything on your own. This site has really helped me get some ideas.
Megan A., Teacher
See more testimonials
Submit your own
Get Free Trial
resources with the keyterm
Physical Difference and Classification
3rd - 4th
Students use a microscope and observation skills to compare and contrast several physical properties and develop a classification system.
Get Free Access