Criticism
Educators have criticized some Abeka textbooks as lacking academic rigor and taking contrary or reactive positions toward their subject matter. Experts from the University of Florida and University of Central Florida in 2018 criticized the content of Abeka textbooks as being markedly simpler and less challenging than the content of comparable textbooks used in public education.
Abeka history books are dramatically different from mainstream books, especially on matters of race. A section of the high-school textbook United States History: Heritage of Freedom is titled "Birth of a Nation", evoking the 1915 film of the same name that glorified the Ku Klux Klan. Other Christian Nationalist rhetoric describes slavery as "black immigration".
Science textbooks published by Abeka defy the scientific consensus regarding the origins of the universe, origins of life, and evolution. Abeka takes Biblical literalist and young Earth creationist positions in its science curriculum, teaching the Genesis creation narrative as a literal and factual account. An Abeka science book denounces evolution as a "retreat from science."
In 2006, the Association of Christian Schools International sued the University of California after the university rejected school credits based on books published by Abeka and one similar publisher. In the case of Association of Christian Schools International v. Roman Stearns, a judge upheld the University of California's finding that the books are "inconsistent with the viewpoints and knowledge generally accepted in the scientific community".