They've removed Christianity and the Biblical God from the schools......and rewritten what precious little history is taught........that vacuum was and continues to be quickly filled by multiculturalism/universalism and all 'their' religions of which Islam has taken the lead.
However....Tennessee took a strong stand against Islamic influence on Americas children by introducing "Tennessee BILL 1418"..... Though I don't know where it stands currently except it appears to prevent ALL religious teaching and doesn't specify Islam....of course the Muslims are fighting this
http://rightwingnews.com/religion/u-s-state-launches-legislation-to-shut-down-islamic-indoctrination-at-schools/
I put my kids in private Christan school. That’s the best I can do right now. Even then I have to correct teachers there occasionally.