How is a factory of robots similar to a cell? Examine cell structure, specialization, communication, replication, and more through the lens of a robot factory. Cell metaphors can be a fun concept as an assignment; after watching the video, challenge learners to come up with their own cell comparisons: a city, their house, the school, a company, etc. Give the class a list of cell structures that should be included in their metaphors, then have them draw their cell metaphors or create a flip book showing the structure in the cell and the comparable item and how the two are similar.