monitorial

In eighteenth-century America, one-room schoolhouses employed the monitorial method, in which older students evaluated the recitations of younger ones.

From The New Yorker ● Jul. 8, 2014

Had the monitorial system existed, that contagion could have been effectually checked; but, as it was, brute force had unlimited authority.

From Eric, or Little by Little by F. W. (Frederic William) Farrar

Further, the same causes which reduced the control of masters, also embarrassed the upper boys in their monitorial duties. 

From Uppingham by the Sea a Narrative of the Year at Borth by John Huntley Skrine

Had he not once offered to quit from his monitorial work to help in the shop and had not his offer been firmly refused?…

From The Foolish Lovers by St. John G. (St. John Greer) Ervine

In particular it extended and improved Sunday Schools, encouraged the formation of charity-schools and schools of industry, and later gave much aid in establishing the new monitorial schools.

From The History of Education; educational practice and progress considered as a phase of the development and spread of western civilization by Ellwood Patterson Cubberley