This document provides an introduction to behaviorism by explaining its key concepts and figures. Behaviorism asserts that behavior is shaped by environmental stimuli and reinforced responses. It focuses on observable behaviors rather than internal mental processes. Important behaviorist theorists discussed include B.F. Skinner, who emphasized positive reinforcement and intermittent reinforcement, and Edward Thorndike, who studied learning in animals through trial and error. The document also describes how behaviorism is applied in classrooms, such as breaking skills into units, providing feedback, and using reinforcement to increase positive behaviors.