The Walter Biddle Saul High School of Agricultural Sciences is a magnet high school in Roxborough, Philadelphia. The school, a part of the School District of Philadelphia, serves grades 9 through 12. Saul is a magnet school in the agricultural fields. Saul is the largest agricultural farm school in the United States. The school has the largest FFA (formerly Future Farmers of America) chapter in the State of Pennsylvania and one of the largest in the United States.