SMILE: Sustainable Motivational Interactive Learning Environment. Attention deficit hyperactivity disorder (ADHD) is one of the most common childhood disorders that can continue through adolescence and adulthood. By creating a learning environment through research and evidence-based design, we will be able to promote an educational system that can help these children achieve their academic potential. This project goes beyond interior design and attempts to influence educational systems and create a better understanding of the psychological effect of the built environment on children with ADHD.