I did Lego Robotics with Matthew and we built three different robots, programming the first one was difficult because the way it showed in the book didn't work so we had to figure out a whole different way to get the robot to follow the black line on the mat. After we got that done we started to build another robot. This robot had big wheels and a different base so we couldn't put the light sensor on it, this one went a bit faster than the first I think. The third robot didn't really move around, but it was supposed to throw something, we got it to throw I biggish piece of Lego, it didn't really throw the Lego far. Once we finished building I gathered all of the photos and videos I took and made them all into one short video.