If they aren't willing to consider a grade skip at least the teacher is willing to establish individualize lessons for your son. Very positive and with some of the projects you described, a great opportunity for him to work on his writing. My concern is next year. Will the school agree to continue this? Because if this is all coming from the teacher with no support from the school they can be setting your son up for a miserable time come next year. Are they willing to revisit the idea of skipping when your son's motor abilities catch up with the rest of him? I would definitely speak to this during the meeting.