My son has ADD - inattentive type, often called "girl add". It means he isn't hyper or disruptive, but little distractions - a sunbeam playing off an object, shiny, a kid breathing to loud, the scratching of pencils - normal classroom things, distract him. He is a really smart kid, honor roll and all that today, but we discovered his issue when his grades dropped and kept dropping. He was trying so hard and was sad and frustrated. It was late in 1st grade before he started to have these issues. We took him for a detailed evaluation (not a pediatrician, a neuropsych department) because we thought something else was wrong. The ADD surprised me, because I didn't know much back then. I had no idea there was more than one kind and assumed that it always included hyperactivity and behavior issues. With a combo of therapy to help him learn coping skills and medication on school days to help him in class, his grades went back up and his frustration with school went away. It isn't all sunshine and rainbows, but his life would be a mess if he hadn't got the help he needed.