Until 1910, children in the common school had been taught a more-or-less single curriculum, with adaptation for individual differences. Thereafter, the teacher was supposed to differentiate instruction by grade level — a big challenge, given the range of ages and abilities in a single room. The new "upstairs" class of 22 older children faced the same challenge, according to a state inspector — though he noted that the "school is doing a great service to the community," preparing them for successful work at Litchfield High.