...Constitution where religion is concerned. I also agree that prayer has been practiced in public schools, in TN and elsewhere.

I would just make two points...

First, it is important to distinguish between (a)prayer/religious practice promoted or established by a public school leadership versus (b)prayer/religious practice promoted/established by people in the school (students and community members).

Second, (b) is fine, legal, constitutional and practiced in many public schools to this day. However,(a) is unconstitutional and illegal in a public school. And while I don't assume all people follow the Constitution in a public school, they ARE supposed to do so.