Saxon Homeschool – Saxon is the nation’s most comprehensive and most thoroughly researched homeschool math program, offering a complete program for grades K-12. Saxon mathematics is based on the teaching principles of incremental development, continual practice and review, and cumulative assessment. From Houghton Mifflin Harcourt, the leading global education company, we offer programs for all subjects and grade levels. Our HMH homeschool kits include Math in Focus: The Singapore Approach, Harcourt Language, Holt Elements of Language, Harcourt Horizons, Houghton Mifflin Science, and other middle and upper grades programs for science and social studies.