Cubberley directly compares schools to factories and children to raw products shaped for social demands. The original wording is raw products and includes the qualifier in a sense, not the common paraphrase raw material.
Our schools are, in a sense, factories in which the raw products (children) are to be shaped and fashioned into products to meet the various demands of life. The specifications for manufacturing come from the demands of twentieth-century civilization.
p. 338
Cubberley directly compares schools to factories and children to raw products shaped for social demands. The original wording is raw products and includes the qualifier in a sense, not the common paraphrase raw material. Bearing on the claim: supports. Verification note: Original 1916 scan opened through Internet Archive. The quotation supports the factory metaphor but is not the exact modern slogan sometimes attributed to Cubberley.