This educational paradigm was popularized through the writing and teaching of Oliver and Rachel DeMille, co-authors of the TJEd resource materials.
DeMille cites such developmental psychologists as Jean Piaget, Lev Vygotsky and Erik Erikson in support of their paradigm of "Phases".
[6] TJEd parents and educators wanting an introduction to teaching through the classics can receive orientation and training to do so by completing The Five Pillar Certification.
Certification endorses an individual’s knowledge and ability in the Classics/Mentors approach to teaching leaders by incorporating all Five Pillars into an overall system of education.
It also requires seminar attendance and a reading and one-page summary for 12 of the following books: Pride and Prejudice, "What is Seen and What is Not Seen" from Essays on Political Economy, The One Minute Teacher, The 7 Habits of Highly Effective People, Leadership Education: The Phases of Learning, Great Expectations, Alas, Babylon, Multiple Intelligences, "The 7 Lesson School Teacher" from Dumbing Us Down, Market-Based Education, How Children Learn, Les Misérables, Spiritual Lives of the Great Composers, The Abolition of Man, Understanding the Times, Uncle Tom’s Cabin, The Fourth Turning, Walden, and The Virginian.