The document provides definitions and classifications of motor skills. It defines skill as a learned ability to produce predetermined results with maximum certainty and minimum effort. There are three categories of skills: cognitive, perceptual, and motor. Motor skills are further classified along continua including open vs closed skills, discrete vs continuous skills, self-paced vs externally-paced skills, and simple vs complex skills. Theories of learning include Fitts and Posner's stages of learning, schema theory, stimulus-response theory, and Bandura's social learning theory. Effective teaching methods consider the task and performer characteristics to structure practice in a whole, part, progressive part, massed or distributed format.