A laboratory school or demonstration school is an elementary or secondary school operated in association with a university, college, or other teacher education institution and used for the training of future teachers, educational experimentation, educational research, and professional development.
Former laboratory school at the University of Wisconsin-Eau Claire, with one-way mirrors in the upper-level observation deck, allowing professors to view the classroom
The same room, showing observation room with a one-way mirror to the right of the classroom
John Dewey was an American philosopher, psychologist, and educational reformer. He was one of the most prominent American scholars in the first half of the twentieth century.
John Dewey
John Dewey at the University of Chicago in 1902
John Dewey and Hu Shih, c. 1938–1942
John Dewey in China in 1920