We are heading towards CAD in 3rd grade within the next few months. One skill that really needs to be in place is the ability to translate measurements from the real world into a digital model. Today we looked at the same stepper-motors the 7th graders will be using later in the year. We started measurement work needed to design the motor mounts in 3D. Parents of 4th graders should be proud - with the whole class measuring copies of the same object there was only 0.63mm difference between the largest and smallest student measurement!