This secondary level resource developed by HISD provides teachers and students with a month-by-month character education unit focus correlating with the AHEF themes of Freedom, Unity, Progress, and Responsibility. Each unit lists relevant or correlating resources including books, articles, and websites. America's Heritage: An Adventure in Liberty is a free K-12 curriculum for teachers of the humanities and social sciences. Teachers are provided these resources as a supplement to school resources as they deliver instruction focused on developing an understanding and teaching of our nation's factual and philosophical heritage to promote Freedom, Unity, Progress, and Responsibility among our students and citizens.