The warren court rule in Engel v. Vitale that religious activities in public schools are unconstitutional.
The case claimed that it is unconstitutional for schools to sponsor prayers for students. It is seen as a violation of the First Amendment that restricts the government to establish any religion.
Therefore, the court said that prayer is a religious activity so the government cannot make school prayer compulsory.
Learn more about Engel v. Vitale case here:
https://brainly.com/question/25874184