This document defines learning as a relatively permanent change in behavior due to experience. It discusses factors that affect learning such as the environment, learner, teacher, and others. Several theories of learning are presented, including trial-and-error learning theory, classical conditioning theory, operant conditioning theory, cognitive learning theory, and social learning theory. Classical conditioning associates a conditioned stimulus with a conditioned response through repeated pairing, while operant conditioning associates behaviors with consequences to increase or decrease those behaviors.