"D"

I really do not know where Tanner learns the things he does. When I ask him he tells me he learns it at school. Since he doesn't go to school we are all a little puzzled. Today he asked me, "Does Diego start with "D"?" I told him it did and he then said, "Just like Dad starts with a "D"." We have practiced letters, but I forget how fast he absorbs what we tell him.