What 5th graders do when they are unsupervised in the classroom

Five fifth-graders were arrested Tuesday, four of them accused of having sex in an unsupervised classroom.

Students shouldn't be left unsupervised?

"It's not clear how long they were left alone but speculation is that it was about 15 minutes," Buckley said. "When no teacher showed up, the four began to have sex in the classroom with the other elementary students in the classroom with them."

I guess the school can call it 'sex education'?