Screen partitions let a schoolmaster discern each scholar’s distinct talent and aptitude

Evidence

The different measures and casts of talent, by this means rendered, perhaps for the first time, distinctly discernible, will indicate the different degrees of attention and modes of culture most suitable to each particular disposition; and incurable and irreproachable dulness or imbecility will no longer be punished for the sins of idleness or obstinacy. — Jeremy Bentham, The Panopticon Writings, 258