1) The document discusses the history of how religious studies has been taught in schools, from colonial times through the present. It focuses on a case study of the Modesto, CA school district which mandates a world religions course for graduation.
2) The Modesto course covers major world religions equally and is intended to promote understanding and prevent harassment. It has positive effects like increasing respect among students for different faiths.
3) Challenges to teaching religious studies include lack of emphasis on assessments and need for teacher training. Support can come from strong administration, clear communication, and integrating religion into history and social studies courses.