He wants to succeed, but his brain just doesn’t work the same as for neurotypical people. He isn’t “choosing” not to write down assignments. It is so much more than a short and easy process when you have executive functioning deficits. Natural consequences and punishments won’t help — they don’t change the physiology of the brain.
Would life be easier if he could just write down assignments and get them turned in. ABSOLUTELY! (Believe me, I know all too well — my son’s executive functioning is almost non-existent!) But it’s just not realistic on his own or by punishing, because it’s his brain.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism