At Vathorst College in the Netherlands, 3D printing is offered as an elective course to kids that are interested to learn more about this technology. After assembling a 3D printer in-class, the students use it to print out parts of a bottle rocket that is launched with water pressure. This project allows the students to expand their knowledge on science and mathematics with 3D printing as a vital part of the process. Read on to find lesson plans that focus on both a science and mathematical application.