I chose to do a third-grade fractions lesson because this is a grade and lesson that I would teach. The key technology I chose to use is 3D printing because students can work together or with assistance to create a fractions model that they can hold and model with. At the S and A stage, it is very teacher-centered with passive learning from students. Once at the M and R stage, students are able to create and share out their models thus actively showing their knowledge.
