the-organization-of-the-work-materials-and-the-spontaneous-production-of-the-childs-mind-san-diego-lecture-1-14-july-1915-qksdumq6 Post date May 26, 2023 Tags Maria Montessori - Speeches, addresses, etc., Maria Montessori - Writings ← the-psychic-development-of-the-child-parallels-the-physical-san-francisco-panama-pacific-international-exposition-lecture-6-13-august-1915-v5ni99lz → the-manipulative-materials-in-relation-to-the-childs-psychic-development-san-francisco-panama-pacific-international-exposition-lecture-11-26-august-1915-6eant98q