Harcourt School Publishers produces textbooks such as "Saxon Math," the "Houghton Mifflin Reading" series for Grades K through 6, and "Holt McDougal Physics." Harcourt School Publishers was acquired by Houghton Mifflin in 2007, with the combined corporation taking the name Houghton Mifflin Harcourt.
Houghton Mifflin Harcourt publishes many textbooks under its Holt McDougal imprint, including "Holt McDougal Literature," "Holt McDougal Biology" and "Holt McDougal Earth Science." Many of these books are targeted toward high school students, but Holt McDougal also produces books for lower grades, including pre-algebra and Common Core assessment books for Grades 6 through 8. For younger students, Houghton Mifflin Harcourt publishes "Write Traits" and "Storytown," as well as "Houghton Mifflin Math," "Science Fusion" and "Harcourt Social Studies." The company also produces many leveled-reader series, such as "Sails" and "Steck-Vaughn Pair-It Extreme."
Houghton Mifflin Harcourt publishes several books that follow the Common Core curriculum, including "Write Source," "Math Expressions" and the "Journeys Common Core" series, which guide young students through the Common Core requirements to prepare them for high school. Houghton Mifflin Harcourt's language textbooks include "Bien Dit!," a French course for Grades 6 through 12, "Prima," a German curriculum for Grades 6 through 12, and "Abriendo Puertas," an AP Spanish curriculum for middle school and high school students.