developmental-learning-and-sensorial-objects-san-francisco-panama-pacific-international-exposition-lecture-14-6-september-1915-r5dsrkmx Post date May 26, 2023 Tags Maria Montessori - Speeches, addresses, etc., Maria Montessori - Writings, Panama-Pacific International Exposition (1915, San Francisco, California) ← education-in-relation-to-the-imagination-in-the-little-child-san-diego-lecture-2-19-july-1915-gt48xcze → correction-of-error-and-the-psychic-development-of-the-child-san-francisco-panama-pacific-international-exposition-lecture-18-14-september-1915-9g9m57x2