I had my 4th graders design a robot that would fulfill a need in their life. It might make their bed, cook, do their homework, play....whatever! We looked at blue prints and discussed the need to think things out completely before production begins. They were asked to write a paragraph explaining the function & details of the robot, and why they made the choices they did. They were required to draw a front, back, and side view of their creation. It was challenging for some, but I really enjoyed helping them wrestle through the process.