Is Elementary-School Departmentalization
Effective?
In
this National Bureau of Economic Research working paper, Roland Fryer (Harvard
University) describes his two-year study of the efficacy of Houston Public
Schools elementary teachers specializing in particular subjects. Twenty-five
schools formed the control group and continued with traditional self-contained
classes. Another 25 schools departmentalized using two different configurations
for the 2-4 teachers at each grade level: (a) one teacher teaching
reading/social studies, another teaching math/science; or (b) three teachers splitting
up reading, math, and science/social studies. Principals decided which
subject(s) teachers taught based on their sense of their strongest area(s).
Students remained with the same classmates for all subjects.
As an economist, Fryer is
familiar with the history of specialization in industry, including Henry Ford’s
1913 introduction of the assembly line to produce the Model T, which reduced
the time it took to produce one car from 750 minutes to 93 minutes. In his
classic economic treatise, The Wealth of
Nations, Adam Smith looked at pin factories in 18th-century
England and found dramatic increases in productivity when individual workers were
organized to specialize in discrete tasks.
“The
basic economics is intuitive,” says Fryer. “Specializing in the production of a
subset of the tasks necessary to produce a final output allows workers to gain
efficiency in that task.” Adam Smith believed there were three reasons for this: