I am going through something similar with my son (3rd grade). I became very frustrated with the school blaming his very poor writing skills on ADHD (he is inattentive in class and not hyper or impulsive), so I took him for a private evaluation. I will find out the results next week. During our initial interview, the psychologist looked over my son's work and was surprised that the school had never mentioned that he could be dyslexic and dysgraphic. The types of mistakes that are evident in my son's writing point towards dysgraphia. He also skips words when he reads and makes many mistakes when he copies. Watch the Eides' video on YouTube called "What Does Dyslexia Look Like in the Gifted Child?" Good luck! I recommend private testing. I feel like I should have done this a year or two ago.