She is already zoning out because the the things around her do not interest her. If this continues, until she gets to high school or college, she will ingrain this lazy non-focused behavior.

She seems to have already concluded that complaining or advocating for herself will not work. And given a girl's tendencies to want to fit in, she will just want to keep it that way. Its not cool at her school to be smart. Because she is quiet, she will be ignored.

Its not that she will waste her time, but that her mind will waste away.

You can find a new school, a new place to live, or just wait and hope, but hope is not a method.

Does she like to read? Will the teacher let her read in class while the others do the assignment?