Red States, but No Red Ink

Here's a story about how red ink may discourage students when they see teacher corrections and comments.

http://www.boston.com/news/education/k_12/articles/2004/08/23/harshness_of_red_marks_has_students_seeing_purple/

While we're on the subject, why don't we see any "nice try" stickers among the stickers that teachers affix to their students' papers? This is grade inflation, the early years.