Cards used in sorting task
Figure 5.3 from Rogoff, Barbara (1990). Apprenticeship in Thinking: Cognitive Development in Social Context. New York: Oxford Univ. Press.
Photographs arranged in six categories (electrical appliances, cutting implements, eating implements, cleaning tools, cooking tools, and grooming items) used in the study of memory for a classification system in studies performed by Rogoff and colleagues, described in Rogoff (1990). Photograph copyright Barbara Rogoff.