Incl. bibl., index. It is argued that professional education should be centered on enhancing the professional person's ability for "reflection-in-action," which is learning by doing and developing the ability for continued learned throughout the professional's career. Examples are drawn from an architectural design studio and the arts to demonstrate how reflection-in-action can be fostered in students and therefore in professionals in all areas. The approach involves active coaching by a master teacher, including giving students practice facing real problems, testing solutions, making mistakes, seeking help, and refining approaches. Extensive dialogues between teachers and students illustrate how reflection-in-action works, what encourages it, and behavior or attitudes that can prevent the development of reflectiveness. [ERIC]