Traditional instruction in geometric optics is not as effective as using interactive simulations. PhET Interactive Simulations created a geometric optics Flash simulation in 2004, but modern browsers ...

Kathy Perkins is Director of PhET Interactive Simulations (2008-present) and Professor Attendant Rank in Physics, specializing in Physics Education and STEM Education Research. She previously served ...

There are two main goals for the PhET sims: increased student interest and improved learning. The animated, interactive and game-like environments help students learn through exploration.