In order for communication to be effective, learning to be successful, or abstract thought to be developed, the process of conceptual development should be understood. Factors influencing conceptual development include environment, parents, peers, physical attributes, intellectual maturity, language and communication skills, and spiritual development. Conceptual development matures in three stages: (1) Preconceptual, (2) Concrete, and (3) Abstract. Effective teaching takes place when conceptual development is understood. This allows for development of the child's self-image, accelerated spiritual maturity, and avoidance of misconceptions. Basic principles should be understood such as use of symbolic concepts, clarity of theological concepts, sequential teaching, singular concept approach, evaluation and adjustment of information, and integration of information.