[Dimensio]

What are you going to do if a teacher wants to pray?

This would be entirely dependent on context. If a teacher is praying in a fashion that is seperate from his or her teaching responsibilities (ie, not using the prayer as part of a class lesson) then I would hardly call it an endorsement of religion by the school.

[lepton]

If a teacher is praying in a fashion that is seperate from his or her teaching responsibilities (ie, not using the prayer as part of a class lesson) then I would hardly call it an endorsement of religion by the school.

Though it often is called just that - and forthwith banned.