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Acellus Academy is a program designed to meet the needs of students being homeschooled or getting an education outside a traditional school environment. Acellus began as an initiative at the International Academy of Science in 2001 to improve math and science scores across the United States of America. Many years later, the program includes all courses for grades K-12 and has impacted over a million student learners in over 2,000 school districts nationwide.