Mix It Up at Lunch Day has been the subject of much conversation this week. From the New York Times to the Colbert Report, adults have been weighing in on the importance of breaking down social boundaries in schools.

But what do kids think about Mix It Up at Lunch Day?

During my first year as a second-grade teacher, I struggled with classroom management. I am a soft-spoken person by nature and habit. I didn't have the experience to help me set up great rules and procedures for my students. My classroom was noisy and chaotic. I think you could hear us all around the school.

I hate sheet protectors. Those shiny, clear plastic sheaths have no place in my classroom. When my new ninth-graders hand in their summer reading logs each September, the first thing I do is remove and return all the sheet protectors. They make it impossible for me to maintain my neat stacks of student work. They don’t quite fit into the file folders I use to transport those stacks home to grade them. I have to remove them before I can write any feedback.