PhET is one of my favorite resources for math and science teachers. In fact, it’s included as one of my Best of the Web picks for 2022. One of the many things that I like about PhET math and science simulations is that you can use them with or without an internet connection. That’s something I recently mentioned to a former colleague and friend who had reached out to me for some help. To help him out I recorded this short video about how to use PhET simulations without an internet connection.