The document defines ADD as a neurological syndrome characterized by impulsivity, hyperactivity, and difficulty sustaining attention. It notes that ADD is now considered a subtype of ADHD without hyperactivity. Statistics presented indicate that 2-6% of children have ADD, which is more common in boys. Causes are thought to include genetic and neurological factors. Core symptoms include inattention, impulsivity, and hyperactivity. Implications for development involve challenges with learning, relationships, creativity, and physical activity. Suggested accommodations include structure, supervision, alternative activities, and communication between home and professionals.