Interactive Simulations for Science and Math

Over 1.1 billion simulations delivered

Teaching Resources, Activities, and Community

Teachers have access to simulation-specific tips and video primers, resources for teaching with simulations, and activities shared by our teacher community.


160interactive simulations

97language translations

3001teacher-submitted lessons

Founded in 2002 by Nobel Laureate Carl Wieman, 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.

Shouldn't All Students Experience STEM?

Learn how we are tackling challenges in STEM education, software development, and assistive technology.