Four corners is a children's game, often played in elementary schools.
To begin, four corners (or general areas) of the room are marked from the numbers one to four.
The remaining players choose any one of the corners and quietly go and stand in that area.
The rules are the same as in the Canadian game, but the fifth player is designated the "chamber pot".
[1] In L'Enfant, French author Jules Vallès calls "it" just the "pôt".