“…From the 1930s to the early 2000s, it seems that learning, and necessarily the science of learning, was seen as pertaining to human change—change apart from maturation. In some cases, the change is related to neuronal activation (Brownell, 1936) or behavior (e.g., Trow, 1945), whereas in others the focus is on internal reorganization of cognitive structures (e.g., Iran-Nejad, 1990) or changes in social and contextual interactions (e.g., Nasir & Hand, 2006). These definitional findings affirm Darwin’s (1859) notion of adaptation, in that definitions of learning have retained the essential defining feature of the term (i.e., human change), while altering aspects or characteristics of the definition that increase likelihood of the term surviving.…”