Inattentive ADHD (once called ADD) is a subtype of attention deficit hyperactivity disorder that often manifests as limited attention span, distractibility, forgetfulness, or procrastination. People with inattentive ADHD make careless mistakes because they have difficulty sustaining focus, following detailed instructions, and organizing tasks and activities. They are easily distracted by external stimuli, and often lose things. They may leave projects unfinished and appear not to listen when you speak. These are all symptoms of Inattentive-Type ADHD; they are not personal defects.
A student with inattentive ADHD may quietly stare out the window while her work goes unfinished; this 'spacey' or 'daydreamy' behavior is overlooked or mischaracterized as laziness or apathy. According to the National Institute of Mental Health, symptoms of inattentive ADHD are far less likely to be recognized by parents, teachers, and medical professionals, and they rarely get the treatment they need. This leads to academic frustration, apathy, and shame that can last a lifetime.