It's not hard like breaking rocks or using a short-handled hoe, but it's hard. Anyone who grades knows that.
It's repetitive, but so is playing solitaire.
It's repetitive AND takes a bit of concentration, but so does playing solitaire.
So why is grading what I'm avoiding, and solitaire what I've been doing to avoid?
I think solitaire has little rewards built in; you feel a little good when you solve the game. But shouldn't I feel a little good when I grade an exam? (I'm down to exams now.)
Maybe grading is higher stakes? So it's repetitive and takes concentration, but unlike solitaire, you have to focus on getting it right or there will be problems.
And unlike solitaire, real people will be affected if there are problems, and I care about those people a fair bit, and want them to succeed for real. (And not just in a letter grade sort of way.)
I wish I felt that there were an ethical way to give scantron exams in a lit course.
So, what is it? Why does grading feel so hard?