We finished up our unit on simple machines this week! The younger class was unable to watch this video on incline planes, so if you have a chance please take a look. We had a wonderful time making marble runs this week. We have some amazing engineers in our classes. Here is a video showing how to make a marble run if you would like to make your own. https://youtu.be/IN0Wn0XgPXQ Optional Homework: Build a Rube Goldberg's Machine using simple machines. Rube Goldberg was a cartoonist that is known for drawing complicated machines to do simple tasks. Your assignment, should you choose to accept it, is to design a machine using simple machines that will result in poping a balloon. See the video below for an example. Take a video of the machine or bring it in January for us to see first hand. Have fun inventing!