The Keystone School offers flexible education programs for high school, middle school and elementary school. Learn more about The Keystone School today!. From teens to adults wishing to complete their high school graduation requirements, high quality online high schools are increasingly available with many extra. From teens to adults wishing to complete their high school graduation requirements, high quality online high schools are increasingly available with many extra. No matter where your dreams are taking you, build the discipline that will help you succeed, today and tomorrow, with Keystone's high school program. And our graduates are on their way to college, into the workforce, or the military. Assisted, directed and enhanced directed. Enroll Now Get Info Enroll Today! High School Diploma Review requirements for a Keystone diploma for grades Students can pursue either a general studies or college prep high school diploma. North Central Association of Colleges and Schools, Council on Accreditation and School Improvement NCA CASI and Accrediting Commission of the Distance Education and Training Council DETC. Because our courses are all online, your student will have the scheduling flexibility to retake courses to bring up that GPA, catch up to classmates, and get the credits necessary to graduate on time. In addition to over 50 online high school courses, students can access dual college credit courses. You simply cannot beat the price that Penn Foster offers for a quality education. Courses included web-based eBook supplemental materials, such as study guides, learning objectives, reading and practice assignments, teacher tips, and exam books. Full-time students receive a Personalized Performance Learning plan, a comprehensive plan based on individual strengths and needs, designed to challenge and motivate students. Career Portfolio, supplemental courses, open enrollment, and real life experience elective credits. Learn about electrical components, conductors, wiring, lighting, heating and climate control. Students can check their grades and course records online through OASIS. However, these programs often have more selective admission standards, have less interaction with instructors or services, and can be expensive.