Gestalt psychologists like Wertheimer, Kohler, and Koffka studied insight learning. Kohler's experiments with chimpanzees demonstrated insight - when a chimpanzee suddenly realized it could use boxes to reach a banana above its cage. Insight involves perceiving a situation as a whole rather than parts, understanding relationships, and suddenly grasping a solution. Factors like experience, intelligence, the learning situation, initial trial-and-error efforts, and repetition and generalization influence insight. Teachers should present material in a Gestalt form, integrate subjects into a whole rather than isolated facts, and motivate students through interest and understanding goals.