Laboratory school
![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](/Images/godic/202501/08/University_of_Wisconsin_-_Eau_Claire_-_Laboratory_School_-_Park_School_-_One-way_mirrors_for_upper-level_observation_deck_viewing_down_into_classroom5159.jpg")
![Former laboratory school at the University of Wisconsin-Eau Claire, showing observation room with a one-way mirror to the right of the classroom](/Images/godic/202501/08/University_of_Wisconsin_-_Eau_Claire_-_Laboratory_School_-_Park_School_-_Observation_room_alongside_classroom_with_one-way_mirror5159.jpg")
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.