5 retired teachers share the biggest lessons students have taught them

Kids may spend the better part of 12 years inside a classroom as students, but teachers can spend three times as long in those classrooms over their careers.

It shouldn’t be a surprise that a great deal of learning takes place at the head of the class.

Business Insider spoke with a handful of retired teachers from across the country to better understand what lessons students have passed on to them over the years.

Here are their responses.