Parents to teachers: No more red pencils. Purple, anyone? Corrections in red called ‘stressful’

　　Of all the things that can make a person see red, school principal Gail Karwoski was not expecting parents to get huffy about, well, seeing red.

　　At Daniels Farm Elementary School in Trumbull, Conn., Karwoski’s teachers grade papers by giving examples of better answers for those students who make mistakes. But that approach meant the kids often found their work covered in red, the color that teachers long have used to grade work.

　　Parents objected. Red writing, they said, was “stressful.” The principal said teachers were just giving constructive advice and the color of ink used to convey that message should not matter. But some parents could not let it go.

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