A student looking in a microscope, very scientifically

STEM Lesson Plans

Search our growing library of STEM lesson plans. Arizona teachers are contributing their best STEM lesson plans to an archive that is aligned with Arizona Academic Standards. This repository is provided free of charge through a collaboration with the Arizona Educational Foundation.

Grades: 6th Grade, 7th Grade, 8th Grade

The students design and test a catapult using simple materials like popsicle sticks and rubber bands. They learn about the history of catapults and also about the physical science concepts related to