A measure allowing teachers to pray with students has passed in Tennessee.

Gov. Bill Haslam signed legislation this week that permits teachers and other school workers to participate in prayer groups and other religious activities on school grounds.

The activities must be student-initiated and held either before or after school.

The American Civil Liberties Union of Tennessee said that even with the new law, public school employees must prevent the impression of endorsing religion.

They added that events held outside of school hours, like "See You At The Pole," are acceptable under certain conditions.