School of Faith Classes The Archdiocese of Kansas City, Kansas offers classes for adults through its Holy Family School of Faith. These classes are held at various parishes through the archdiocese. The classes usually are between 6 and 12 weeks in length, once weekly, and occasionally are held at Holy Trinity Parish. When this occurs, we post the class on our parish website. Class tuition is a nominal fee, and registration can be made through the Archdiocese website by clicking HERE.