Presents two charts designed by Maria Montessori to illustrate the four planes of development. Claims that Montessori's meticulously researched commentary signals an emerging organic vision of the developmental continuum from birth to adulthood that is relevant to the educational needs of our time. (MOK)

Defines Montessori theory in terms that can interface with developmental psychology, summarizing adolescent cognitive, social, emotional, and moral outcomes. Focuses on outcomes of the third plane of education for youth in an Erdkinder setting, Montessori's "Educational Syllabus," providing clues about the future Montessori adult.…