Print in Place Tops

I love designs that print in place. I decided to create a lesson that taught my middle school students how to design a top that prints in place. This is version 3 of the lesson and it really worked well. Students designed, printed, tested and then reworked their designs. Our goal is to create one that can spin for more than 60 seconds. Feel free to follow the lesson on your own, or if you are a teacher use it in your classroom. Speaking of teachers, if you are one and are interested in having a