 Oklahoma's top educator, Superintendent Ryan Walter, fights back after a state Supreme Court decision said religious charter schools are unconstitutional. Now, public schools are being ordered to teach from the Bible. Andrew Seidel with Americans United for Separation of Church and State. I would say that his latest scheme to mandate the use of the Bible in Oklahoma's public school curriculum is a transparent, unconstitutional effort to indoctrinate and religiously coerce public school students.