Actually Bibles are allowed . Not allowed to have open floor but any group can get permission to assemble . You can not get a captive audience but can gather before /after school or during activity periods . the school I retired from has the national motto posted in "every classroom " (IN GOD WE TRUST) which is school board policy . Have your child get involved in F.C.A. (FELLOWSHIP OF CHRISTIAN ATHLETES ) that has become Fellowship of Christian Any bodies in most all schools.Waiting for someone to solve our problems will not happen . If you are concerned about you children relationship with God then take them to church, Sunday school , church camps, etc. .All religious groups at schools have this options so their beliefs are not infringed , we have the same rights but rarely do anything but complain . The Schools will do the will of the community if pressure is applied . Some do a lot some do nothing, rather than get involved your kids lose .