Not much to add here but a related story. In 1st grade, I was pushing the school for subject acceleration in math (my guy was doing negative numbers and division at home). I was shocked when the GIFTED teacher said "well, if we accelerate him in math now, what would we teach him in sixth grade?". Uh, duh, well, maybe we could teach him something now and worry about sixth grade later?
Just commiserating and hoping you find something. FWIW, we did Aleks at age 7 (third grade), took a break from it, then started it again and there were things he couldn't remember. He redid 3rd before he went on to 4th. So, it *might* be worth trying that.
