For this unit's science test we will be doing class presentations.  Each student has been assigned a group and a subject.  They individually write a page about their subject, then do a presentation as a class.  Students have sheets detailing who is in their groups and the exact requirements.  Students will then take structured notes as they watch their classmates perform, and will have a quiz based on what they learned.  They are pretty excited, but still might need some reminding to get it done!