Dr. Russell Barkley explains why those with ADHD often forget assignments, appear to avoid work, or even seem "lazy" in this great video posted to youtube by user: whatshakin3. His description of ADHD as a "Intention Deficit Disorder" offers insight into the planning and executive function of individuals struggling with attention. With this understanding, teachers can better prepare their students to complete long-term assignments such as essays or upcoming exams.