Suggestopedia is a language teaching method developed by Georgi Lozanov based on how the human brain learns most effectively. It aims to remove psychological barriers to learning by creating a relaxing environment with music, colors, and confidence-building techniques. Key aspects include a sensory-rich setting, positive reinforcement, and interactive activities like role plays. The teacher aims to put students in a suggestible state to optimize retention through dramatized texts, songs, and maintaining an enthusiastic yet modest demeanor. While it may accelerate learning compared to other methods, Suggestopedia also faces limitations like large class sizes common in some areas.