My little guy can count to a million if I really let him except he can not count the teens. Every other number 0-12 and 20 on up he can get perfectly. But it then goes... 13, 18,19,15, 19 20! He's only 3 so I'm not worried, he'll eventually get it... but, is there any tips and tricks besides repetition and counting everything in sight that helps? We sing songs, count EVERYTHING in sight, play games where he has to count. I think he's just being stubborn with the teens lol. He can write his numbers just fine and he can put pictures of hte numbers in the correct order and knows them by sight too. I just need some fresh ideas before I go insane.