What do M&Ms have to do with geometry? What about probability and birthdays? In this engaging title presented by Scientific American, readers explore several math concepts through experiments and activities that fit right into the middle school STEM curriculum. Each project guides readers through gathering materials, set up, and execution of the project, as well as invites them to ask questions along the way to enhance understanding. Each project ends with an Observations and Results section to allow readers to clearly see what has happened. “Extras” show readers ways to expand the project further.