montessori: educational material for early childhood and schools. With text in both German and English, Montessori: Educational Material for Early Childhood and Schools, is a close look at the history, educational principles and materials developed by Maria Montessori between 1913-1935. Designed to accompany an exhibition at the Bauhaus-Archiv in Germany, the book has an amazing collection of archival images of Montessori classrooms, furniture, students and learning materials.