John Dewey
John Dewey believed in the "theory of inquiry", which shows how animals survived in their environment. He used the theory in the way he taught.  He said that children learn best with real-life problems and hands-on activities.  His most well-known essay was "The Reflex Arc Concept in Psychology" (1896) which created the stimulus that became the response, which later became known as social behaviorism.  For example, a person focuses on something, decides what to do, then acts on the decision.