While I admire the intention of the teacher (getting the kids to better understand racism), I can't help but wonder if there was a way she could accomplish this without putting eight-year olds through a mock Stanford Prison Experiment for two days. I would note be comfortable turning my students into "nasty, vicious, discriminatory third graders" for even a short while, and I don't think I would feel comfortable sending my own daughter into a classroom for two days to feel like that.