Behaviorism is a learning theory based on the idea that all behaviors are acquired through conditioning. It focuses on measurable and observable behaviors and interactions with the environment. The major theorists who contributed to behaviorism include Ivan Pavlov, Albert Bandura, and B.F. Skinner. In the classroom, behaviorism can benefit learning through observational modeling, positive reinforcement of good behaviors, and reducing misbehaviors with punishments or negative reinforcement. The author supports using operant conditioning and observational modeling in their own teaching methods.