 So FET is a collection of over a hundred interactive simulations for teaching and learning science. They're all free on the web. You can run them online or you can download them to your computer. We have simulations in physics and chemistry and a growing number in earth science, biology and math. One of the main goals of FET is to provide students with an open exploratory environment and they can really engage with the science content like a scientist. The FET suite of simulations is one of the most carefully thought out simulations that we have employed in our instruction. We conduct our own research so that we're constantly learning about what makes an effective simulation. One way that I use simulations is I ask clicker questions around them to really focus what students are thinking about and trying to process. Sometimes I'm using it as a demonstration as a really effective way to describe a dynamic system to the students. I've used Sims in homeworks. I have used the Sims in tutorials where they play basically the role of some experimental equipment. Now you can actually see it. You see what's going on. You see the battery light up when you connect two wires and a battery. You see the flow of each electron and how electrons are affected by resistance. It takes you about a minute or two to sit down and figure out all that it can do and actually start learning from it. We make the simulations highly interactive so that when students move a slider or create a different setting, they get immediate feedback as to the effect of making that change. They're flexible and easy to use and they capture the interest of my students. They're a lot of fun whether it's shooting pianos out of cannons or doing quantum mechanics tunneling. To get you interested in it and then once you're interested in it, it's really easy to learn it and just want to actually do it and explore it. One of our main goals is to educate the world. So we give away all of our simulations for free and we provide tools for translators across the world. The impact of the Fed applets right now is worldwide, which is a remarkable thing. I think we're enabling a lot more people to learn physics and chemistry and biology in a way that will stick in their minds and hopefully will enable them to do great things.