Set up a crime scene in your room and have students investigate the murder. It is intentionally set up for no one right answer so students have to argue their point. One story line is included. In the story line you will receive: police interrogations, security camera time stamps, evidence cards, cell phone screen shots, and receipts and information that could be used to tie ecosystems, plants, or/soils into the the unit.I gave students a new piece of evidence each week. The first week was just