This website provides lots of ways for adults to answer challenging questions that come up in class to promote a safer school environment.
What Do You Say to ‘That’s So Gay’ & Other Anti-LGBTQ* Comments?
“It doesn’t matter if it’s a first grader who might not know what the word “gay” means, a sixth grader trying to sound cool, or a tenth grader “teasing” a friend. All of these have the potential of creating an unsafe classroom or school environment and must be addressed. So, what can caring adults do?”
http://www.welcomingschools.org/resources/challenging-questions/