Agostini v. Felton (1997) ruled that a New York program allowing public
school teachers to provide remedial instruction in private schools did not
violate the First Amendment.
Parochial Schools Cases
The Oklahoma Supreme Court ruled that the state constitution barring funding of religious entities bars the state from allowing a Catholic school to become a state charter school. The ruling in the case, Drummond v. Oklahoma Virtual Charter School Board, also explored how the action would violate the establishment clause of the First Amendment.