Graphing Videos with Functional Carnival

I've been looking around today trying to decide on a topic for next week and see what was snazzy and new out there. One of the tools that I came across is called "Function Carnival", which would be the perfect addition to a graphing unit in a math class or to a physics class. The idea is pretty simple. The student watches a video clip and then draws a graph based on the motion. Once they click play, the clip is played again with a secondary moving object that matches the graph so they can see how accurate they were. You can set up a classroom for them to do the exercises, and they have a teacher tip section on this website. I played with it for a while and it certainly has potential to get your students involved and spur some conversation about what happens. It's pretty fun!