Shared iPad
Use the Shared iPad feature to let multiple students use the same iPad in a classroom. In this way learning experiences can be personal even though the devices are shared. Not only are transitions from class to class greatly simplified but time is also saved. It’s easier to pick up right where students left off and automatically save student work. When used with Classroom, intelligent caching helps accelerate student sign-ins by returning students to the iPad they were previously using.
See Shared iPad overview in Apple Platform Deployment.