Assign them a paper on nudism due tomorrow
From Create Your Own Story
"I know many of you may have a lot of questions to ask about nudism, so here's what we're gonna do." You grab a marker and begin writing on the whiteboard.
"For next class, you're gonna have to do some research on nudism and write a paper about it. You should focus on the benefits of a nudist lifestyle; especially the psychological effects." You finish writing and turn around to face the class. "Any questions about the assignment?" you ask. The students shake their heads.
You smile. "Alright then, let's continue with class as normal!" you said to them.