It almost sounds like a blend of perfectionism and imposter syndrome:
As she was writing them she made the comment to me that 1st grade work is really like kindergarten work. Then, a little later, she forgot to capitalize the first word in a sentence. When she realized it she got very upset and started saying things like "I should be punished for that" and "I'm awful at writing" and "I can't do anything right."
So here's what I see: She's letting you know she thinks her work is too easy. I wonder if part of her really is wondering why the teacher gives her k work in first grade(maybe I'm not smart)
Then she is doing this work that she has already mastered and some kids just cannot sustain attention for a task that is not stimulating. Picture watching the same Three's Company re-run three times in a row. Would you really be paying attention.....
And then, bam, she makes a mistake. Except her mistake is on K work, well then, just maybe she's less smart than even a Kindergartner!
Additionally, she then says aloud "I'm awful at writing" and "I can't do anything right." Which is terrible to hear when you child says that about themselves. And you know that it's NOT true and you tell them. The risk, though, is if the child continues along that line of self talk consistently, maybe then it could become a
self fulfilling prophecy One way you can help her confidence is to incorporate some afterschooling that involves a hard but reasonable challenge. Sit with her and try to make it a really pleasant experience. And when she gets frustrated and says I can't do it, it's too hard.....you have to talk her down.
Reinforce that if she says she can't do it, she won't be able to . A soft touch and humor helps. Get her to laugh, even if it's at you.
If she really gets stuck, help guide her without giving the answer and keep telling her she can do it. And when she succeeds make a really big deal out of.
"Wow, you know that is a second grade workbook! I knew you could do it!
It's important not to give her something that truly is out of reach and I would start with 10 minutes of difficult work.
Work the time/amount of problems/work up based on her ability to tolerate it.
When her confidence is up, that might be a good time to approach the teacher with a request for more appropriate work.
Probably most would say to approach the teacher first. I just think if it's a confidence issue there are a few ways this could backfire for DD.
Good luck
Neato