Interactive Simulations

The PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery.

All simulations available at are open educational resources available under the Creative Commons Attribution license (CC-BY).
Permission is granted to freely use, share, or redistribute PhET sims under the CC-BY license.

PhET Interactive Simulations
University of Colorado Boulder

Using PhET Interactive Simulations in Lecture. A two-page overview of uses of PhET simulations in lecture settings.

View teacher-contributed demonstrations and activities at our Activity Database.

How do I increase student interactivity when using PhET sims in lecture? Tips on facilitating student discussions, peer instruction, and interactive lecture demonstrations with PhET simulations.

How do I add a simulation to my course? Click for instructions