A new Louisiana requirement that the Ten Commandments be displayed in all public classrooms is ''unconstitutional on its face," a federal judge ruled Tuesday, ordering state education officials not to take steps to enforce it and to notify all local school boards in the state of his decision.

A new Louisiana requirement that the Ten Commandments be displayed in every public classroom by Jan. 1 was temporarily blocked Tuesday by a federal judge

The judge said the law was "discriminatory and coercive" because it would pressure children in public schools into adopting Louisiana's preferred religious teachings.