Functional Communication Training (FCT) is a behavioral intervention designed to teach individuals more effective ways to communicate their needs and desires. It focuses on replacing challenging behaviors, such as tantrums or aggression, with appropriate communication methods, like using words, signs, or pictures. This approach is often used with individuals who have developmental disabilities or communication disorders. FCT involves identifying the specific reasons behind a person's challenging behavior and then teaching them alternative communication strategies that serve the same purpose. By reinforcing these new communication skills, individuals can express themselves more effectively, leading to improved interactions and reduced frustration.