I am not familiar with the upper levels of FIAR as I have not used them, but I have used Before FIAR and FIAR. We enjoy FIAR and sometimes add it into our school day but we use HOD as our primary program. FIAR is a Literature Based program. Everything stems from the book you are reading. You discuss the art one day, the grammar the next, the social studies aspects the next, math and others another day. Bible is added on if you get the character supplements but not integral.
HOD is a Unit Study based program. While HOD is rich in literature, particularly living books, it is NOT literature based. HOD has a blend of good literature, some textbooks, integrated bible study, and other resources all tied together through the History program into a Unit Study.
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