Behaviorism is a theory that human behavior can be explained in terms of conditioning in response to environmental stimuli without appeal to internal mental states or other constructs. Key aspects of behaviorism include conditioning through reinforcement or punishment, learning through observation, and shaping behavior through positive and negative reinforcement. Behaviorism was explored through experiments by psychologists like Ivan Pavlov, B.F. Skinner, and Albert Bandura and influences approaches to education through conditioning students' behaviors in the classroom.