Debby Heerkens, a biology teacher at the Groene Hart Rijnwoude school in the Netherlands, came up with a memorable way to educate her students.

She stood up on her desk and started stripping off her clothes revealing a bodysuit of spandex illustrated with accurate muscles and organs.

Below that, another set of spandex illustrated where all the bones in her body are.

Heerkens came up with that idea when she saw someone walking around with similar leggings.

She bought similar body suites, made sure that it was ok with the school’s director and then brought them in to class.

Her aim was to make the lesson less boring. And she succeeded it, since her students have been asking about when she’ll be having another similar lesson.