Our best sims will occupy students (and, on occasion, faculty) for hours. Our Physics Education Technology (PhET) project's team of scientists, software engineers and science educators has now ...

who often first encounter the subject in introductory college physics classes. Traditional instruction in geometric optics is not as effective as using interactive simulations. PhET Interactive ...

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 ...