Maybe this is the answer i was looking for. I have had trouble teaching my daughter her numbers 6-19. She is advanged in all other areas: reading, vocab, art, athletics, problem solving, and even science. She is 4.5. But these numbers have been driving both of us nuts. I actually stopped showing the numbers to her the other day because i was afraid it was making her irritated. She just can't recall them. But I showed her a clock and explained the short hand and she start telling me times. She can put the numbers in order and tell more and less and other things like that but she just can't name them. I think I will move onto addition with her and see how she picks that up. Who knows?