Mission Hills Christian School 29582 Aventura, Rancho Santa Margarita, CA92688 Mission Hills Christian School, a ministry of Mission Hills Community Church, offers classes for students in junior…More kindergarten through eighth grade. MHCS has served families in the Saddleback Valley since 1980. In addition to a solid academic program, students participate in chapel, art, music, technology, physical education and sports. MHCS hires teachers who are solid Christians and have valid California Teaching Credentials. Additionally, MHCS teachers maintain Christian Educator Certification through the Association of Christian Schools International (ACSI). The teachers at Mission Hills follow the California State Standards.