The American Civil Liberties Union is suing the Independence School District, KMBC reported.
The lawsuit, which was prompted by the mother of a Truman High School student, is about religion in the classroom.
A 10th-grade student claims that her teacher, Chris Earley, required students to take notes from a sermon, KMBC reported.
According to court papers filed Thursday, that sermon promoted the book of Genesis from the Bible. The student says the teacher also showed a movie titled "Jesus and His Times: The Story Begins."
Officials with the Independence School District said they have not yet received the lawsuit