Can you help her care less about her grade? What matters is what she's learning, and that's the attitude she's going to need through life (even when grades may affect college entrance, which isn't yet, right?) If the teacher/the school is going to deny her appropriate education on the basis of grades that are pulled down by these issues, more fool them and you need to address it, but even then, it shouldn't be her concern, IMHO.

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