Considered are optimal conditions for learning in the child care center serving preschool children. Discussed as aspects of learning based on real life experiences are provision for a rich environment, opportunities for learning about the world and space, learning one's way around, and learning about measuring numbers, time, days and seasons, everyday skills, common symbols, and learning how to be resourceful. Learning machines are thought to be inappropriate for preschool children. It is noted that effective learning is rewarding and leads to pride of accomplishment, that curiosity is usually a useful trait, that repetition reinforces learning, and that being accepted is one of the rewards of learning. Teachers are encouraged to use family relationships, family events, and holidays or birthdays as sources of learning experiences. Cornerstones of learning are seen to include the ability to observe and discover, to compare, to organize, to anticipate results, to solve problems, to make plans, to choose, to adapt, and to create. Prerequisites for optimal learning are given to be good health, previous experiences of success, freedom from anxiety, freedom from distractions, a flexible schedule, and the avoidance of boredom. Stressed is the importance of the home learning environment and the inclusion of parents in center activities. (DB)